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FMC CROP NUTRITION

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FMC CROP NUTRITION PRODUCT RANGE GUIDE
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Page 1: FMC CROP NUTRITION

FMC CROP NUTRITIONPRODUCT RANGE GUIDE

Page 2: FMC CROP NUTRITION

About FMC Crop NutritionOur Advanced FormulationsFMC Nutrients By Product

Key Crop Nutrients Essential & Key NutrientsCerealsOilseed RapeSugar BeetPotatoesPulses

Product RangeBo-La™

Carnival®

Cereal Plus™

Complex 20-8-14™

Hi-Phos®

Jett®

KuruS™

030405

06070812162024

2829303233343637

Maple DF™

Mycrobor® DFPrince®

Root 66®

Stoker™

Thio-S™

Zinc FL™

Safety, Storage & Application

Soil PropertiesNutrient Interactions The Influence of Soil pH on Nutrient AvailabilityChemical & Other Symbols

3839404244454647

484950

51

CONTENTS

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FMC Crop Nutrition is an operating division of FMC Corporation (formerly known as Headland Crop Nutrition). FMC Crop Nutrition was founded in the UK in 1985 and is a leading supplier of speciality crop nutrition products.

FMC’s products include:• Speciality crop nutrition products;

liquids, suspension concentrates and powders

• Advanced products; with added humic acid and lignosulfonate technology

• Biostimulant based products.• Fertigation products (NPK solubles)

In addition to its long established market presence in the UK and Eire, FMC Crop Nutrition has expanded rapidly over the past 30 years and now exports to more than 45 countries worldwide covering Europe, the Middle East, Asia, Africa, Australasia and North and South America.

FMC has its own modern custom built production, formulation and filling plant at Pentre in the north-west of the United Kingdom.

FMC maintains its own technical support team to provide superlative standards of service for its customers in line with its position as one of the world’s foremost and innovative manufacturers of specialty crop nutrition products.

For more information about FMC’s products or services, visit our website at:

WWW.FMC-AGRO.CO.UK

ABOUT FMC CROP NUTRITION

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Available, balanced nutrition is essential to plant development. Foliar nutrient products must be of the highest quality to counteract natural or induced deficiencies and meet the growing requirements of high yielding crops.

Formulation technology has developed rapidly and moved away from applying foliar nutrients in basic inorganic form. For maximum effectiveness foliar applied plant nutrients need to move through waxy plant cuticles into the leaf and internal transport system as efficiently as possible.

Formulation ingredients can have a significant impact on facilitating leaf entry and subsequent nutrient availability within the plant.

Scientific research shows that in addition to aiding uptake, some co-formulants can act to help compatibility in the spray tank (and some have a dual role, helping both compatibility and uptake), some modify the acidity of the spray water and some act to

tie up or block unwanted ions which could interfere with product efficacy. Others act within the plant by increasing or maintaining levels of chlorophyll, improving the uptake of other nutrients or acting like plant hormones.

Finally, the type of salt used in the product can have an impact on uptake and availability e.g. manganese based on the nitrate salt has been shown in trials to be taken into the plant more readily than those based on sulphate or carbonate salts.

Applying an unformulated foliar nutrient product is very different from applying a fully optimized formulated product. The first option is very cost ineffective in terms of element uptake and utilisation. Potential differences in terms of element uptake and utilisation by the plant mean that applying a fully formulated FMC product is often the most cost effective solution because the applied element is readily absorbed and utilised by the plant.

FMC products are fully formulated using advanced chemistry and contain the best available surfactants and adjuvants to assist absorption by the plant and ensure any investment in plant nutrition is maximised.

OUR ADVANCED FORMULATIONS

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60g/L100g/L

30g/L

862g/L151g/L

180g/KG

310g/KG

PRODUCT Boron(B)

Calcium(Ca)

Copper(Cu)

Iron(Fe)

Magnesium(MgO)

Bo-La™

Root 66®

Carnival®

Cereal Plus™

Complex 20-8-14™

Hi-Phos®

Jett®

KuruS™

Sulphur(SO3)

Zinc(Zn)

Molybdenum(Mo)

Nitrogen(N)

Potassium(K2O)

Manganese(Mn)

150g/L

Mycrobor® DF

Prince®

Phosphorus (P2O5)

Thio-S™

Stoker™ 60g/L

0.75g/L

0.3g/KG

225g/L

18g/L

2g/KG 0.2g/KG

53g/L

30g/L

25g/L

20g/KG

80g/L

133g/L

22g/L

37g/L

2.6g/KG

200g/L

2g/L

7.5g/L

0.06g/KG 200g/KG

149g/L

32g/L

140g/KG

74g/L

360g/L

440g/L

80g/KG

148g/L

630g/L

160g/KG

2g/L

0.3g/L

6g/L

1.4g/KG

690g/L

PageNo.

30

29

32

33

34

36

37

38

39

40

44

45

46

Maple DF™ 450g/KG

FMC NUTRIENTS BY PRODUCT

Zinc FL™

42

Page 6: FMC CROP NUTRITION

KEY CROP NUTRIENTS

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All crops require 17 essential elements for healthy growth and development.A nutrient is determined to be essential if:• The element is directly involved in the nutrition of the plant• A deficiency makes it impossible for the plant to complete its life cycle• A deficiency is specific to the element and can only be prevented or corrected by supplying the element

Of the 17 essential elements 12 are commonly addressed with Crop Nutrition inputs and these can be categorised as macro or micro nutrients.

There are variations between crops in sensitivity to nutrient deficiencies, these differences lead us to identifying what we determine as “Key Nutrients” for each crop.

ESSENTIAL ELEMENTSMacronutrients

Phosphorus

Potassium

Micronutrients

Manganese

Boron

Nitrogen Iron

Calcium Zinc

Magnesium Copper

Sulphur Molybdenum

ESSENTIAL AND KEY NUTRIENTS

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Fig. 2

COPPER DEFICIENCY – A component in proteins and lignin formation, copper deficiency can have a dramatic effect on grain formation. Deficiency symptoms include rolled and twisted leaves or bleached and withered leaf tips (fig. 1). If left untreated, ears will develop with blind grain sites and grains that do develop will be poorly formed.

MAGNESIUM DEFICIENCY – The central atom of the chlorophyll molecule, magnesium is essential to maintain green leaf area for photosynthesis. In early developmental stages it ensures good crop establishment, later playing a key role in maintaining export pathways for carbohydrate and amino acid movement from the leaf into the grain.

As it is a particularly mobile nutrient, magnesium deficiency begins in older leaves while new leaves initially remain green and healthy. Symptoms include green and yellow banding (interveinal chlorosis) on older leaves with “beading” of chlorophyll, severe symptoms proceed to necrotic patches and leaf margins.

MANGANESE DEFICIENCY – Required for chlorophyll synthesis and in photosynthesis, manganese is also important to ensure an efficient green crop. Symptoms of deficiency include yellow chlorotic mottling of younger leaves which can progress to necrotic spots and streaks. Affected crops can also have a flaccid and wilting growth habit. Deficiency is often not as bad in compacted or consolidated soils, leading to the classic “green tramlines” in deficient fields (fig. 2).

Fig. 1

Image Credit: IPNI

Image Credit: Blackthorn Arable

KEY NUTRIENTS FOR CEREAL PRODUCTION

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SULPHUR DEFICIENCY – Extremely important for the formation of proteins this is especially important for bread making varieties where a high protein content is paramount. As nitrogen uptake increases sulphur uptake is also important to ensure the efficient use of nitrogen. Deficient leaves become entirely pale yellow, starting in the younger leaves (fig. 4).

Fig. 4

Image Credit: FMC

ZINC DEFICIENCY – Required for the assimilation of CO2 during photosynthesis, the production of hormones and the structural integrity of cell membranes. Zinc deficiency can lead to reductions in grain yields, symptoms include yellow bands that develop either side of the leaf midrib, which in cereals are followed by necrotic brown patches (fig. 3).

Fig. 3

Image Credit: IPNI

KEY NUTRIENTS FOR CEREAL PRODUCTION

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Cereal Plus™ - GS 13 Aut/GS 31 Spring

Thio-S™ - GS 30 - 31 / GS 55 - 79

Prince® - GS 31 - 32 / GS 39 - 59

Hi-Phos® - Tillering + 10 - 14 days later

Jett® - 3 Leaf

Root 66® - GS30 - GS59

KuruS™ - GS 20 - 43

GS 13 GS 21 GS 30 GS 31 GS 32 GS 37 GS 39 GS 49 GS 51 GS 59 GS 61 - 69 GS 71 - 89

PRODUCTS & TIMING FOR CEREALS

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Jett®

Hi-Phos®

Cereal Plus™

Prince®

Thio-S™

Manganese (Mn) 200 g/L

Phosphorus (P2O5) 440 g/LPotassium (K2O) 74g/LMagnesium (MgO) 80 g/L

Magnesium (MgO) 25 g/LSulphur (SO3) 30 g/LCopper (Cu) 18 g/LManganese (Mn) 37 g/LZinc (Zn) 6 g/L

Magnesium 133 g/L

Nitrogen (N) 151 g/LSulphur (SO3) 862 g/L

2.5 L/ha

5 L/ha

2.5 L/ha

1.25 - 2.5 L/ha at GS 313 - 6 L/ha at GS 32 and GS 39 - 59

3 - 5 L/ha

PRODUCT PRODUCT INFORMATION RATE

KuruS™ Potassium (K2O) 360 g/LSulphur (SO3) 630 g/L

2.25 - 6.75 L/ha

PRODUCTS & TIMING FOR CEREALS

Root 66® Magnesium (MgO) 100 g/LManganese (Mn) 60 g/L

2.5 - 5 L/ha

Page 12: FMC CROP NUTRITION

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Fig. 1

Fig. 2

MAGNESIUM – The central atom of the chlorophyll molecule, magnesium is essential to maintain green leaf area for photosynthesis. In the early developmental stages it ensures good crop establishment, later playing a key role in maintaining export pathways for carbohydrates and amino acids from the leaf.As it is a particularly mobile nutrient, magnesium deficiency begins in older leaves while new leaves initially remain green and healthy. Symptoms include yellowing and interveinal chlorosis on older leaves with blotchy red/purple leaf margins and severe symptoms can proceed to necrotic patches.

BORON – With Brassicas having a relatively high requirement for boron it is exceptionally important for oilseed rape production playing key roles during flowering, pollen production and the seed setting processes. Boron is involved in cell division and elongation as well as lignin production for cell wall integrity. Deficiency symptoms can include thickened, misshapen and brittle leaves that can appear pale with yellow interveinal mottling. Stems and leaf midribs can crack (fig. 1); and a lack of cell division/elongation can lead to a stunted crop with little stem extension. Significant impact on yield can result from reduced and infertile flowers leading to lower pod numbers with less seed.

SULPHUR – Extremely important for the formation of proteins and in oilseed rape is used in oil synthesis. Adequate sulphur is required for the efficient use of nitrogen; high levels of one of these nutrients can cause deficiency of the other. Symptoms include stunted growth with pale yellow leaves, usually starting in the younger leaves (fig. 2). Leaves can show signs of cupping with flowers being pale or even white in colour.

Image Credit: CPM

Image Credit: IPNI

KEY NUTRIENTS FOR OILSEED RAPE PRODUCTION

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MOLYBDENUM – The key element for nitrogen utilisation in the plant via the conversion of nitrate to nitrite. Importantly in oilseed rape molybdenum is also required for the assimilation of sulphate and also used in pollen formation. Playing a key role in efficient use of both nitrogen and sulphur, one common deficiency symptom is leaf yellowing; others include poor leaf development with reduced area and a longer whip like midrib similar to “Whiptail” in cauliflower.

MANGANESE – Required for chlorophyll synthesis and in photosynthesis, manganese is important to ensure an efficient green crop. Manganese activates various enzyme processes such as amino acid and lignin synthesis; and is also involved in lipid synthesis, deficiency is likely to result in reduced oil content. Symptoms include yellow chlorotic mottling of younger leaves which can progress to necrotic spots. Crops can also have a flaccid and wilting growth habit. Deficiency is often not as bad in areas of compacted or consolidated soils.

KEY NUTRIENTS FOR OILSEED RAPE PRODUCTION

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Thio-S™ - Stem extension

Prince® - 4 Leaf

Jett® - 3 - 4 Leaf

Bo-La™ - 3 Leaf + stem extension

Stoker™ - 4 Leaf stage + stem extension

Hi-Phos® - Autumn 6 - 8 leaves / Spring early stem extension

3 TrueLeaves

4 TrueLeaves

6 - 8 TrueLeaves

StemExtension

Flower BudsVisible

KuruS™ - 4 - 6 Leaves

PRODUCTS & TIMING FOR OILSEED RAPE

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Stoker™

Bo-La™

Jett®

Prince®

Thio-S™

Hi-Phos®

Boron (B) 60 g/LMagnesium (MgO) 53 g/LManganese (Mn) 22 g/LZinc (Zn) 2 g/LMolybdenum (Mo) 2 g/LSulphur (SO3) 148 g/LNitrogen (N) 32 g/L

Boron (B) 150 g/LMolybdenum (Mo) 7.5 g/L

Manganese (Mn) 200 g/L

Magnesium (MgO) 133 g/L

Nitrogen (N) 151 g/LSulphur (SO3) 862 g/L

Phosphorus (P2O5) 440 g/LPotassium (K2O) 74 g/LMagnesium (MgO) 80 g/L

2.5 L/ha

2 L/ha

2.5 L/ha

3 L/ha

5 - 10 L/ha

2 - 5 L/ha

PRODUCT PRODUCT INFORMATION RATE

KuruS™ Potassium (K2O) 360 g/LSulphur (SO3) 630 g/L

2.25 - 6.75 L/ha

PRODUCTS & TIMING FOR OILSEED RAPE

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Fig. 1

Fig. 2

MAGNESIUM – The central atom of the chlorophyll molecule, magnesium is essential to maintain green leaf area for photosynthesis. In the early developmental stages it ensures good crop and root establishment, later playing a key role in sugar synthesis and translocation.

As it is a particularly mobile nutrient, magnesium deficiency begins in older leaves while new leaves initially remain green and healthy. Symptoms include yellowing and interveinal chlorosis starting at the leaf margins and progressing inwards, severe symptoms can proceed to necrotic “cigarette burn” interveinal patches and leaf margins (fig. 1).

MANGANESE – Required for chlorophyll synthesis and in photosynthesis, manganese is also important to ensure an efficient green crop; deficiency can therefore lead to reduced photosynthesis, carbohydrate production and sugar yield. Symptoms include yellow chlorotic mottling of the leaves which in slight deficiencies may only be seen against the light; this can progress more obviously across the whole leaf to give “speckled yellows” (fig. 2). Manganese deficient sugar beet tend to grow with a more upright leaf habit and the edges can curl inwards to give a characteristic triangular shape.

BORON – Involved in cell division and elongation as well as lignin production for cell wall integrity. Deficiency symptoms can include thickened, rubbery textured and brittle leaves and leaf midribs can crack. Boron deficiency affects crop growing points and in sugar beet new leaves die back giving rise to “heart rot” symptoms. Small bunches of secondary leaves may also begin to develop around the top of the root. Severe heart rot symptoms can significantly impact root yield.

Image Credit: Blackthorn Arable

Image Credit: Blackthorn Arable

KEY NUTRIENTS FOR SUGAR BEET PRODUCTION

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SULPHUR – Extremely important for the formation of amino acids and proteins. Adequate sulphur is required for the efficient use of nitrogen; high levels of one of these nutrients can cause deficiency of the other. It can be difficult to distinguish between sulphur and nitrogen deficiency, especially in the early stages. Symptoms include pale yellow leaves, usually getting more pronounced in the younger leaves and growth could also be stunted.

KEY NUTRIENTS FOR SUGAR BEET PRODUCTION

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Mycrobor® DF - 4 - 6 Leaf

Complex 20-8-14™ - 4 - 6 Leaf

Prince® - 6 - 8 Leaf

Jett® - 4 - 6 Leaf

Hi-Phos® - 4 - 6 Leaf

Zinc FL™ - 4 - 6 Leaf

BBCH 12 BBCH 14 BBCH 16 BBCH 18 BBCH 20

PRODUCTS & TIMING FOR SUGAR BEET

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PRODUCT PRODUCT INFORMATION RATE

Hi - Phos®

Jett®

Prince®

Complex 20-8-14™

Mycrobor® DF

Zinc FL™

Phosphorus (P2O5) 440 g/LPotassium (K2O) 74 g/LMagnesium (MgO) 80 g/L

Manganese (Mn) 200 g/L

Magnesium (MgO) 133 g/L

Total Nitrogen (N) 200 g/KGPhosphorus (P2O5) 80 g/KGPotassium (K2O) 140 g/KGMagnesium (MgO) 20 g/KG Sulphur (SO3) 160 g/KGBoron (B) 0.3 g/KGCopper (Cu) 2 g/KGIron (Fe) 0.2 g/KGManganese (Mn) 2.6 g/KGMolybdenum (Mo) 0.06 g/KGZinc (Zn) 1.4 g/KG

Boron (B) 18% Soluble Boron

Zinc (Zn) 690 g/L

5 L/ha

2.5 L/ha

3 L/ha

2.5 – 5 KG/ha

12 KG/ha

1 L/ha

PRODUCTS & TIMING FOR SUGAR BEET

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Fig. 1

Fig. 3

POTASSIUM – Involved in maintaining water balance in the plant, also transport of sugars from the leaves to the tubers. Potassium is also required for enzyme activation including starch synthase required for starch production. Potassium is required for tuber bulking and quality. Deficiency symptoms can include yellowing of the leaf margins in the older leaves (fig. 2), this can spread across the whole leaf and also progress to necrosis with leaves dying prematurely. Deficiency can lead to issues with internal tuber blackening and leave tubers more susceptible to damage and bruising during handling.

PHOSPHORUS – A major component of the ATP molecule, phosphorus plays key role in energy supply in the plant. Deficiency at tuber initiation causes a reduction in tuber numbers; while if deficiency is apparent later in the season smaller tubers will be produced as bulking is impeded. Symptoms include a general stunting and reduction in growth, leaves become a dark green colour and purpling can occur on stems and around leaf midribs (fig. 1).

MAGNESIUM – The central atom of the chlorophyll molecule, magnesium is essential to maintain green leaf area for photosynthesis. In the early developmental stages it ensures good crop and root establishment setting a good yield and quality potential, later playing a key role in sugar synthesis and starch translocation.

As it is a particularly mobile nutrient, magnesium deficiency begins in older leaves while new leaves initially remain green and healthy. Symptoms include interveinal yellowing starting in the centre of the leaf while leaf margins remain green (fig. 3), severe symptoms can proceed to necrotic interveinal patches. Deficient crops can mature earlier than expected and suffer with lower dry matter and starch contents.

Fig. 2

Image Credit: IPNI

Image Credit: IPNI

Image Credit: Blackthorn Arable

KEY NUTRIENTS FOR POTATO PRODUCTION

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Fig. 6

CALCIUM – An important component of the cell wall structure, calcium maintains the strength and permeability of cell membranes. Calcium also plays a role in cell division and elongation as well as in starch metabolism. Calcium deficiency symptoms are very rarely seen on the foliage in the field as most soils will support the crops need for leaf growth. Where deficiency does occur, break down of cell wall in the tubers can lead to disorders such as “internal rust spot” (fig. 6), hollow tubers and poor skin finish.

MANGANESE – Required for chlorophyll synthesis and in photosynthesis, manganese is also important to ensure an efficient green crop. Deficiency can lead to reduced photosynthesis and carbohydrate production giving potentially lower dry matter and starch contents. Symptoms include more generalized yellowing of the younger leaves (fig. 4); leaves can also show signs of black speckled markings along the veins or across the leaf surface (fig. 5).

Fig. 5

Fig. 4

Image Credit: Blackthorn Arable

Image Credit: Blackthorn Arable

Image Credit: Blackthorn Arable

KEY NUTRIENTS FOR POTATO PRODUCTION

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Complex 20-8-14™ - Sufficient leaf cover for spray interception

KuruS™ - Tuber initiation

Prince® - Sufficient leaf cover for spray interception

Root 66® - Sufficient leaf cover for spray interception

Hi-Phos® - Tuber initiation & bulking + at least 10 days later

Carnival® - Apply when required and repeat after 10 - 14 days

GS 10 GS 19 GS 20-39Development of shoots

GS 40-59 Beginning of tuber initiation and bulking &

flower development

GS 70-89Tuber and fruit development

PRODUCTS & TIMING FOR POTATO

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PRODUCT PRODUCT INFORMATION RATE

Hi - Phos®

Root 66®

Prince®

KuruS™

Complex 20-8-14™

Phosphorus (P2O5) 440 g/LPotassium (K2O) 74 g/LMagnesium (MgO) 80 g/L

Magnesium (MgO) 100 g/LManganese (Mn) 60 g/L

Magnesium (MgO) 133 g/L

Potassium (K2O) 360 g/LSulphur (SO3) 630 g/L

Total Nitrogen (N) 200 g/KGPhosphorus (P2O5) 80 g/KGPotassium (K2O) 140 g/KGMagnesium (MgO) 20 g/KG Sulphur (SO3) 160 g/KGBoron (B) 0.3 g/KGCopper (Cu) 2.0 g/KGIron (Fe) 0.2 g/KGManganese (Mn) 2.6 g/KGMolybdenum (Mo) 0.06 g/KGZinc (Zn) 1.4 g/KG

10 L/ha

2.5 - 5 L/ha

3 - 5 L/ha

2.25 - 6.75 L/ha

2.5 - 5.0 KG/ha

Carnival® Nitrogen (N) 149 g/LCalcium (CaO) 225 g/LMagnesium (MgO) 30 g/LBoron (B) 0.75 g/LZinc (Zn) 0.3 g/L

5 L/ha

PRODUCTS & TIMING FOR POTATO

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Fig. 1

Fig. 2

MAGNESIUM – The central atom of the chlorophyll molecule, magnesium is essential to maintain green leaf area for photosynthesis and ensures good crop and root establishment. Magnesium also plays a key role in translocation as well as protein and sugar synthesis.Magnesium deficiency begins in older leaves while new leaves initially remain green and healthy. Symptoms include yellowing and interveinal chlorosis with leaf margins curling downwards (fig. 1 – beans), severe symptoms can lead to necrotic interveinal patches and leaf margins.

MANGANESE – Required for chlorophyll synthesis and in photosynthesis, manganese is also important to ensure an efficient green crop; deficiency can lead to reduced photosynthesis, carbohydrate and protein production. Symptoms include yellow chlorotic interveinal mottling of the leaves, this can in severe situations lead to yellowing of the whole leaf and necrotic interveinal speckling (fig. 2 - Peas). A manganese deficient pea crop can lead to the development of “Marsh Spot” an internal discoloration of the seed (fig. 3 – dried peas) similar problems can also develop in beans.

MOLYBDENUM – The key element required for the process in which nitrate is converted to nitrite in order to be utilised by the plant for amino acid production; also required for phosphorus metabolism. In legumes molybdenum promotes nodulation of the root system and the fixation of nitrogen. Symptoms include yellowing, pale leaves and general poor growth; often described as comparable to a mild nitrogen deficiency due to the reduced nodulation and therefore poor nitrogen assimilation.

Fig. 3

Image Credit: IPNI

Image Credit: Blackthorn Arable

Image Credit: Blackthorn Arable

KEY NUTRIENTS FOR PULSE CROP PRODUCTION

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BORON – Involved in cell division and elongation as well as lignin production for cell wall integrity. Boron is also required in the flowering process, particularly for pollen formation and then seed production. Deficiency symptoms can include brittle leaves and also death of the main growing points with smaller secondary leaf development. Poor pollination can lead to reduced pod set and also reduced numbers of seed in viable pods (fig. 4).

Fig. 4

Image Credit: IPNI

KEY NUTRIENTS FOR PULSE CROP PRODUCTION

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Zinc FL™ - Commencement of flowering

Maple DF™ - 10 - 15 cm high

Hi-Phos® - 10 - 15 cm high

Stoker™ - 10 - 15 cm high. Repeat 10 - 14 day intervals as required until 4 weeks before harvest

Bo-La™ - 10 - 15 cm high

KuruS™ - Late bud to 10% flowering

10 - 15cm Commencement of flowering

Late bud to 10% flowering

PRODUCTS & TIMING FOR PULSE CROP

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Bo-La™

Stoker™

Hi-Phos®

Zinc FL™

KuruS™

Boron (B) 150 g/LMolybdenum (Mo) 7.5 g/L

Boron (B) 60 g/LMagnesium (MgO) 543 g/LManganese (Mn) 22 g/LZinc (Zn) 2 g/LMolybdenum (Mo) 2 g/LSulphur (SO3) 148 g/LNitrogen (N) 32 g/L

Phosphorus (P2O5) 440 g/LPotassium (K2O) 74 g/LMagnesium (MgO) 80 g/L

Zinc (Zn) 690 g/L

Potassium (K2O) 360 g/LSulphur (SO3) 630 g/L

2.0 L/ha

2.5 L/ha

5 L/ha

1 L/ha

2.25 - 6.75 L/ha

PRODUCT PRODUCT INFORMATION RATE

PRODUCTS & TIMING FOR PULSE CROP

Page 28: FMC CROP NUTRITION

PRODUCT RANGE

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Bo-La™ is an inorganic liquid formulation of boron and molybdenum, designed for cost-effective correction of deficiency of these elements in crops. Boron deficiency can affect many crops, particularly vegetables, brassicas, root crops and oilseed rape. Molybdenum deficiency affects a number of crops, but particularly cauliflowers, lettuce and other members of the brassica family.

CONTENTS:Boron (B) 150 g/LMolybdenum (Mo) 7.5 g/L

FORMULATION:Bo-La™ is a high concentration micronutrient formulation containing boron and molybdenum fully soluble in water.

APPLICATION RATES & TIMINGS: Marginal deficiency and autumn applications:1.0 L/ha in at least 200 litres of water. Moderate deficiency:2.0 L/ha in at least 200 litres of water/ha. Severe deficiency:2.0 - 2.5 L/ha initially followed by further applications as required if symptoms should re-appear.Bo-La can be applied to crops whenever a boron deficiency is observed or expected, but after the 3 leaf stage, or when there is sufficient foliage present to absorb the spray.

Do not apply this product in very bright sunlight or in temperatures above 25°C. If possible, spray in the evening or early morning for best results.

PACK SIZE:10 litres

BO-LA™

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Carnival® contains calcium, magnesium, nitrogen zinc and boron formulated to maximise uptake of calcium with additional nutrients to aid the production of quality fruit and vegetables. CONTENTS:

Nitrogen (N) 149 g/LCalcium (CaO) 225 g/LMagnesium (MgO) 30 g/LBoron (B) 0.75 g/LZinc (Zn) 0.3 g/L

FORMULATION:Carnival® is a concentrated liquid formulation for easy mixing and handling.

PACK SIZE:10 litres

VEGETABLE BRASSICAS:For the prevention of deficiency problems in cauliflower, cabbage, brussels sprouts and Chinese leaves.Rate: 5.0 L/haWater: At least 200 L/haTiming: Spray early in the growing season at 7 - 10 day intervals.

CARROTS:For prevention of deficiency.Rate: 5.0 L/haWater: Use at least 200 L/haTiming: 2 - 3 applications at 10 - 14 day intervals beginning at the pencil stage.

APPLICATION RATES & TIMINGS: POTATOES:For the reduction of calcium deficiency related disorders.Rate: 5.0 L/haWater: Use sufficient water to ensure good cover.Timing: When required, repeat after 10 - 14 days.

CARNIVAL®

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Avoid spraying during high temperatures. If temperatures exceed 21oC and spraying cannot be delayed, use the lower rate and apply at frequent intervals to give the same total amount over the season. Spraying in the late afternoon or early evening has been shown to reduce the risk of scorch. Young foliage is more susceptible to phytotoxicity.

STRAWBERRIES:To improve fruit firmness and prolong shelf life.Rate: Maintenance 2.5 L/ha. Deficiency 5.0 L/haWater: 500 - 1000 L/haTiming: Apply from start of flowering. Applications can be made every 10 - 14 days.

OUTDOOR LETTUCE:In order to prevent tip burn it is essential that Carnival® is applied directly to the susceptible tissue. Early treatment is essential.Rate: 5.0 L/haWater: At least 200 L/haTiming: Begin application before head formation and repeat every 10 - 14 days as required.

CELERY:Blackheart, a localised calcium deficiency usually occurs in young immature leaves at the centre of the plant. Spray to ensure Carnival® reaches the heart of the plant.Rate: Up to 5.0 L/haWater: At least 200 L/haTiming: When symptoms of deficiency are first seen. As early as possible once the young plant has sufficient foliage to absorb the spray.

APPLES:Low levels of calcium increase the risk of bitter pit, russetting, skin splitting, cracking and surface rupture and seriously affect the potential for crop storage. Calcium also helps to condition the tree throughout growing season.Rate: 2 - 5 L/ha from bud burst to the beginning of flowering, repeated every 7 - 10 days.5 - 10 L/ha from petal fall to one week before harvest, repeated every 10 - 14 days.Water: Depending on tree size 200 - 500 L/ha, applying sufficient water to reach incipient runoff.Timing: Apply from petal fall and repeat at 10 - 14 day intervals with final application 10 - 14 days prior to harvest, depending on the cultivar. The exact rates and timing can be manipulated to suit local spraying practices.

CARNIVAL®

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Cereal Plus® contains a carefully balanced blend of nitrate and sulphate based magnesium, copper, manganese and zinc specifically formulated to meet the nutrient needs of cereal crops.

CONTENTS:Magnesium (MgO) 25 g/LSulphur (SO3) 30 g/LCopper (Cu) 18 g/L Manganese (Mn) 37 g/LZinc (Zn) 6 g/L

FORMULATION:Cereal Plus® is a fully soluble liquid formulation of nitrate and sulphate based nutrients for easy mixing and handling.

APPLICATION RATES & TIMINGS: Rate: 2.5 - 5.0 L/haWater: At least 200 L/ha.Timing: For cereals, apply in the autumn from GS 13, once sufficient foliage is present in the crop to absorb the spray. Apply again at or aroundGS 31 in the spring.

Do not apply this product in very bright sunlight or in temperatures above 25oC. If possible, spray in the evening or early morning for best results.

PACK SIZE:10 litres

CEREAL PLUS®

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COMPLEX 20-8-14™

Complex 20-8-14™ is a carefully formulated fully soluble blend of NPK and micronutrients. It is suitable for optimising nutrient balance in a wide range of crops. Complex 20-8-14™ may be used as a routine nutrient source for maintaining healthy crop growth and development and also to provide a source of rapidly absorbed additional nutrients at a time of crop stress or during periods of particularly rapid growth and development.

CONTENTS:Total Nitrogen (N) 200 g/KGPhosphorus (P2O5) 80 g/KGPotassium (K2O) 140 g/KGMagnesium (MgO) 20 g/KG Sulphur (SO3) 160 g/KG Boron (B) 0.3 g/KG Copper (Cu) 2.0 g/KG chelated with EDTAIron (Fe) 0.2 g/KG chelated with EDTAManganese (Mn) 2.6 g/KG chelated with EDTAMolybdenum (Mo) 0.06 g/KG Zinc (Zn) 1.4 g/KG chelated with EDTA

PACK SIZE:10 kilograms

FORMULATION:Complex 20-8-14™ contains a balanced ratio of fully soluble and plant-available nutrients formulated for easy and straightforward mixing and application.

APPLICATION RATES & TIMINGS: 2.5 - 5.0 KG/ha in at least 200 litres of water. Application to small areas may also be made with a knapsack sprayer. Use 2.5 g/L of water, applied to the point of runoff.

Apply when required or as indicated by the results of tissue analysis, once the crop has sufficient leaf area present to absorb the spray (e.g. the 3 leaf stage in cereals). Repeat at 7 - 14 day intervals as required.

Do not apply this product in very bright sunlight or in temperatures above 25°C. If possible, spray in the evening or early morning for best results.

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Hi-Phos® is a liquid formulation containing magnesium, potassium and phosphorus in carefully balanced proportions for application to potatoes, cereals, peas, beans, sugar beet and other crops.

CONTENTS:Phosphorus (P2O5) 440 g/LMagnesium (MgO) 80 g/LPotassium (K2O) 74 g/L

PACK SIZE:10 litres

APPLICATION RATES & TIMINGS: POTATOES:To encourage tuber numbers.Rate: 10 L/haWater: At least 200 litres of water at tuber initiation. To encourage bulkingRate: 5 L/haWater: At least 200 litres of waterTiming: At the onset of bulking and repeat at least once during bulking. The timing of the 2nd application should be based on tissue analysis and should not be less than 10 days after the 1st.

CEREALS:Rate: 5 L/haWater: At least 200 litres of waterTiming: At tillering and repeat at 10 - 14 day intervals as required. An application between ear emergence and the end of flowering may also be beneficial.

MAIZE:Rate: 2.5 - 5.0 L/ha Water: At least 200 litres of waterTiming: At the 4 - 8 leaf stage. Repeat at 10 - 14 day intervals if required.

OILSEED RAPE: Rate: 2.5 - 5.0 L/haWater: At least 200 litres of water.Timing: Apply in the Autumn when the crop has 6 - 8 leaves and repeat in the Spring at early stem extension.

PEAS AND BEANS:Rate: 5 L/haWater: At least 200 litres of water when the crop is 1 - 15 cm high and repeat after 10 - 14 days.

HI-PHOS®

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SUGAR BEET:Rate: 5 L/haWater: At least 200 litres of waterTiming: At the 4 - 6 leaf stage. Repeat at 10 - 14 day intervals as required.

Other crops sensitive to P and K deficiencies: Apply as early in the growing season as possible providing there is adequate leaf cover. Repeat as required.

HI-PHOS®

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Jett® is an advanced formulation of manganese that is rapidly taken up by the plant. Manganese is used in the plant in conjunction with other essential nutrients for stimulation of various enzyme systems. Its major role is in the synthesis of chlorophyll and metabolism of nitrogen. Most crops are sensitive to manganese levels, particularly cereals, vegetables, brassicas, root crops and fruit. CONTENTS:

Manganese (Mn) 200 g/LPACK SIZE:10 litres

FORMULATION:Jett® is a fully soluble formulation of manganese nitrate for foliar treatment of manganese deficiency in crops. The nitrate form of manganese is up to 25% more plant available than conventional sulphate forms and is especially useful for foliar application to crops requiring high amounts of manganese.

APPLICATION RATES & TIMINGS: CEREALS:Apply as necessary after the 3 leaf stage.

OTHER CROPS:Apply as necessary when the crop has developed enough foliage to absorb the spray.

Marginal deficiency:1.25 L/ha in at least 200 litres of water.

Moderate deficiency:2.5 L/ha in at least 200 litres of water.

In areas of severe or known deficiency a programme of applications throughout the growing season may be necessary. Do not exceed more than 12 L/ha per season

Do not apply this product in very bright sunlight or in temperatures above 25oC. If possible, spray in the evening or early morning for best results.

JETT®

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Potassium is involved with promoting root growth, maintaining stem strength, encouraging protein production and ensuring the efficiency of water use. Sulphur is necessary for nitrogen utilisation and is vital for protein formation. Shortages of potash in the plant cannot be rectified in-season using conventional granular fertilisers, which is why FMC have introduced KuruS™.

CONTENTS:Potassium (K2O) 360 g/LSulphur (SO3) 630 g/L

PACK SIZE:10 litres

FORMULATION:KuruS™ is a clear, chloride free, liquid fertiliser solution. KuruS™ requires no mixing because it is already in solution, and will remain so even down to 0oC. Because it is a complete solution, it is ideal as a foliar spray, or for use through drip irrigation systems.

PULSES:Apply during late bud to 10% flowers showing.

TOMATOES:Beginning of fruit set and repeat every 10 - 14 days.

VINES:Apply in at least 270 L/ha beginning 2 weeks after flowering. Repeat every 7 - 10 days.

APPLES:Apply in at least 900 L/ha with the first application at first full leaf and subsequent applications as required.

OILSEED RAPE: Apply from 4 - 6 leaf stage.

APPLICATION RATES & TIMINGS: Rate: 2.25 - 6.75 L/ha unless otherwise specified, apply in enough water to provide thorough coverage.

POTATOES:First application at tuber initiation, a second application 2 - 3 weeks later and a third application at tuber bulking.

CEREALS:From tillering to early boot (GS 20 - 43).

DO NOT apply KuruS™ to the foliage of crops sensitive to sulphur.

KURUS™

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Maple DF™ is suitable for correction of manganese deficiency in a wide range of crops and also for use as a maintenance treatment.

CONTENTS:Manganese (Mn) 310 g/KGSulphur (SO3) 450 g/KG

FORMULATION:Maple DF™ is a fully soluble inorganic form of manganese formulated as a water-dispersible granule.

APPLICATION RATES & TIMINGS: Rate: Apply 2.5 - 5 KG/ha in at least 200 litres of water. Repeat applications may be necessary as advised or recommended by analysis.

Sub-clinical (maintenance) dressing: 1 KG/ha twice during spring / summer period.

CEREALS:In the autumn as soon as there is sufficient leaf present to absorb the spray and repeat in the spring when growth re-commences.

OILSEED RAPE:In the Autumn prior to dormancy and again in the Spring at the onset of growth.

POTATOES:Apply with the first blight sprays. Repeat half-rate Maple applications with later blight sprays will be beneficial.

SUGAR BEET:Apply at 4 - 6 leaf.

PEAS AND BEANS:In areas of known deficiency, apply when the crop is 10 - 15 cm high. If symptoms persist, repeat at flowering and again 7 - 10 days later.

Do not apply to crops which are under stress from frost, drought or other factors. Do not apply in bright sunlight or in temperatures above 25°C. If possible, spray in the early morning or evening for best results.

PACK SIZE:10 kilograms

MAPLE DF™

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A micronutrient blend for use in agriculture, Mycrobor® DF is suitable for correction of boron deficiency in a wide range of crops and may be applied to soil or to foliage.

CONTENTS:Boron (B) 180 g/KG

PACK SIZE:15 kilograms

FORMULATION:Mycrobor® DF is a carefully formulated fully soluble source of boron for easy and straightforward mixing and application, equivalent to 18% boron by weight.

ROOT CROPS:12 KG/ha, applied either to the soil or as a foliar spray.

TOP FRUIT AND SOFT FRUIT:12 KG/ha as a soil treatment or2 KG/ha as a foliar spray. The foliar spray may be applied up to 4 times at 10 - 14 day intervals depending on the severity of the deficiency.

GRAPES AND ORNAMENTALS (FLOWER CROPS):12 KG/ha as a soil treatment, or2 KG/ha as a foliar spray. The foliar spray may be applied up to 4 times at 10 - 14 day intervals depending on the severity of the deficiency.

APPLICATION RATES & TIMINGS: SUGAR BEET:12 - 18 KG/ha as a soil treatment or12 KG/ha as a foliar spray.

OILSEED RAPE AND OTHER BRASSICAS:6 - 12 KG/ha as a soil treatment or12 KG/ha as a foliar spray.

LEGUMES (PEAS, BEANS ETC):12 KG/ha as a soil application or3 KG/ha as a foliar spray.

MAIZE:5 KG/ha as a soil treatment or2.5 KG/ha as a foliar spray.

MYCROBOR® DF

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Magnesium is needed in sufficiently large quantities to be classed as a macronutrient. It is fundamental to plants as it is necessary for the production of chlorophyll. It is also active in many enzyme systems. Transitory shortages can have a significant effect both on yield and quality of produce.

CONTENTS:Magnesium (MgO) 133 g/L

PACK SIZE:10 litres

FORMULATION:Prince® is a liquid formulation containing magnesium as the highly soluble and plant available nitrate.

Plants can use nitrates up to 25% more efficiently than the same amount of element from a formulated sulphate and the solubility of nitrates allows more concentrated formulations to be produced.

APPLICATION RATES & TIMINGS: CEREALS:Yield depression can result from a deficiency of magnesium in the flag leaf, GS 32.Wheats have shown quality improvements from a further application from GS 39 - 59.Up to GS 31: Marginal deficiency 1.25 L/ha Moderate deficiency 2.5 L/haGS 32: 3 - 6 L/haGS 39 - 59: 3 - 6 L/ha

MAIZE:Has a high requirement for magnesium. Transitory shortage should be avoided in order to promote optimum growth as early as possible. Apply 3 - 6 L/ha at the 4 - 8 leaf stage.

PRINCE®

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OILSEED RAPE:Adequate magnesium levels are essential to ensure good crop establishment. Apply 3 L/ha when the crop has reached the 4 - leaf stage of growth and has sufficient leaf area to absorb the spray.

APPLES:Apply 3 L/ha from petal fall. Apples are likely to need three applications 2 - 5 weeks apart or apply according results of tissue analysis.

GRAPES:Apply 3 L/ha from the end of flowering. Three applications 3 - 5 weeks apart are likely to be required.

Water: Use at least 200 L/ha.

Do not apply this product in very bright sunlight or in temperatures above 25°C. If possible, spray in the evening or early morning for best results.

PRINCE®

POTATOES:Magnesium is important to potatoes due to its role in carbohydrate production. It can also improve quality by minimising internal blackening and bruising. Apply 3 - 5 L/ha once there is sufficient leaf to absorb the spray and continue the programme of 3 - 4 applications over the season.

SUGAR BEET:Apply 3 L/ha from the 6 - 8 leaf expanded leaf stage or as indicated by tissue analysis.

VEGETABLES AND BRASSICAS:Apply 3 L/ha from the 4 - 6 fully expanded leaf stage or as indicated by result of tissue analysis.

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ROOT 66®

Root 66® has been formulated to provide a mixture of manganese and magnesium for those crops that have a demand for both elements at the same time. Manganese has an important role in key enzyme production in association with other elements and is of primary importance for plant respiration through the synthesis of chlorophyll and for the metabolism of nitrogen. Magnesium is essential for the formation of chlorophyll production in association with other elements.

CONTENTS:100 g/L magnesium (MgO)60 g/L manganese (Mn)

PACK SIZE:10 litres

FORMULATION:Saving on tank mixing, Root 66® is a convenient way of applying the highly soluble and plant available nitrates. Plants can utilise nitrates up to 25% more efficiently than the same amount of element from sulphate sources and the solubility of nitrates allows more concentrated formulations to be produced.

APPLICATION RATES & TIMINGS: Maintenance application:2.5 L/ha in at least 200 L/ha of water.Moderate deficiency:5 L/ha in at least 200 L/ha of water.Severe deficiency:5 L/ha in at least 200 L/ha of water. Repeat applications 3 - 4 weeks apart as required.

CEREALS:Apply when there is a need for an application of both manganese and magnesium from GS 29 - 59.

LINSEED:Apply as required during establishment and throughout the growing season.

MAIZE:Apply at the 6 - 8 leaf stage.

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ROOT 66®

POTATOES:As required throughout the growing season. A programme of applications applied about 3 weeks apart has been found to maintain optimum levels of nutrients in this crop.

PULSES (PEAS AND BEANS):Apply as required.

OILSEED RAPE:Apply at the 3 - 5 leaf stage to help establishment of the crop. Stem extension is the next critical stage for application.

ONIONS:Apply as required during the growing season.

Do not apply this product in very bright sunlight or in temperatures above 25°C. If possible, spray in the evening or early morning for best results.

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Stoker™ is an advanced suspension formulation for foliar application to oilseed rape, brassicas, peas and beans and other arable crops. The formulation provides superior foliar coverage and adhesion, optimising availability, uptake and absorption of the product.

CONTENTS:Boron (B) 60 g/LMagnesium (MgO) 53 g/LManganese (Mn) 22 g/LZinc (Zn) 2 g/LMolybdenum (Mo) 2 g/LSulphur (SO3) 148 g/LNitrogen (N) 32 g/L

FORMULATION:Stoker™ is an advanced suspension formulation of manganese, magnesium, boron, zinc and molybdenum with nitrogen and sulphur.

PULSES (BEANS, PEAS, SOYA BEANS):Apply early in the season when the plants have sufficient leaf area to intercept the spray. Repeat if necessary at 10 - 14 day intervals until 4 weeks before harvest.

Other agricultural and horticultural crops:Suitable for application to other agricultural and horticultural crops where nutrient deficiency has been identified or is suspected. Applications should begin as soon as the target crop has sufficient foliage to intercept the spray and may be repeated as required.

APPLICATION RATES & TIMINGS: OILSEED RAPE:Apply 2.5 L/ha in at least 200 litres of water. Ensure thorough cover of the foliage. Start at the 4 - leaf stage and repeat if necessary at 10 - 14 day intervals. Repeat when stems begin to elongate rapidly.

LEAF BRASSICAS:Apply early in the season when the plants have sufficient leaf area to intercept the spray. Repeat if necessary at 10 - 14 day intervals until 4 weeks before harvest.

PACK SIZE:5 litres

STOKER™

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A high sulphur fertiliser with nitrogen.

Do not apply this product in very bright sunlight or in temperatures above 25°C. If possible, spray in the evening or early morning for best results.

CONTENTS:Nitrogen (N) 151 g/L (as ammoniacal Nitrogen)Sulphur (SO3) 862 g/L

APPLICATION RATES & TIMINGS: CEREALS:Rate: 3 - 5 L/haTiming: GS 30 - 31 and repeat at 10 - 14 day intervals if required.Wheats will benefit from a further application at GS 55 - 79.

OILSEED RAPE:Rate: 5 - 10 L/haTiming: stem extension and repeat at 10 - 14 day intervals as required. Do not apply during flowering.

POTATOES:Rate: 5 L/haTiming: At or shortly after 100% emergence and repeat at 10 - 14 day intervals as required.

SUGAR BEET, BEANS AND PEAS:Rate: 5 L/haTiming: The 4 - 6 leaf stage and repeat at 10 - 14 day intervals as necessary.

MARKET BRASSICAS:Rate: 5 L/haTiming: When the crop has 4 - 6 leaves and repeat at 10 - 14 day intervals as required.

ONIONS, LEEKS, CARROTS:Rate: 5 L/haTiming: When the crop is 15cm tall and repeat at 10 - 14 day intervals as necessary.

MAIZE:Rate: 5 L/haTiming: When the crop has 4 - 8 leaves and repeat 14 days later.

GRASS FOR SILAGE:Rate: 10 L/haTiming: 4 weeks before the first (or second) cut.Water: At least 200 litres

PACK SIZE:10 litres

THIO-S™

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Zinc is used in the plant in conjunction with other essential nutrients for stimulation of various enzyme systems. Zinc deficiency severely depresses photosynthesis.

Maize, potatoes, top fruit, hops, linseed, barley and beans are particularly sensitive to zinc levels. Sandy soils, high pH soils and soils with high phosphate level can limit the availability of zinc. Low temperatures and wet conditions also limit the uptake of zinc. Low temperatures frequently occur during the early stages of development of maize and it is essential that adequate zinc is available. CONTENTS:

Zinc (Zn) 690 g/L

PACK SIZE:10 litres

FORMULATION:Zinc FL™ is a ready to use liquid formulation containing Zinc formulated as a suspension concentrate, for correction of Zinc deficiency in a wide range of crops.

It contains an advanced surfactant/ suspension system to ensure rapid and even dispersion in the spray tank and superior adhesive properties on foliage.

Use at least 200 L/ha. Increase the water volume as necessary to ensure good cover of the foliage.

CEREALS:Apply from the 3 - leaf stage.

OILSEED RAPE, LEAF & ROOT BRASSICAS, SUGAR BEET AND MAIZE:Apply from the 4 - 6 leaf stage.

PEAS AND BEANS:Apply from the commencement of flowering.

POTATOES:Apply from full emergence.

OTHER CROPS:Apply when there is sufficient foliage present to retain the spray.

APPLICATION RATES & TIMINGS: Apply Zinc FL™ at 1 L/ha. Repeat applications at 10 - 14 day intervals if required or as indicated by tissue analysis. Do not apply to protected crops.

ZINC FL™

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All FMC Nutrition products are safe for crops if used in accordance with the label, and are packed in high quality and convenient, easy to open bags or plastic containers.

For full information on specific safety precautions, protective clothing, storage conditions and transport advice for our products, refer to the label or visit our website.

APPLICATION / MIXINGFor our liquid solution products:Shake the container well before opening. Half-fill the spray tank with clean water, begin agitation and slowly add the required amount of product.Add the rest of the water whilst maintaining agitation, and apply without delay. Maintain agitation while travelling and throughout the spraying operation.

For our suspension products:Shake the container well before opening. This redistributes formulation components within the product. Half fill the spray tank with clean water and along with constant agitation pour out 25% of the product. Replace the cap and shake well again before pouring the remainder of the product.

This should ensure homogenous suspension and easy washout of the container. Maintain agitation while travelling and throughout the spraying operation.

Best results will be obtained from applications made during the early morning or evening when moisture is present in the plant.

FMC recommends that soil and tissue analysis results are used whenever

COMPATIBILITYFMC foliar nutrient products are physically compatible with most spray-applied agricultural chemicals.

possible to guide micro andmacronutrient applications.

Avoid applying in extremes of temperatures (above 25°C), very strong sunlight or when the crops are under drought or other stress.

For full application details on individual products refer to the label or our website.

Always consult an FMC representative for the latest information on products and compatibilities.WWW.FMC-AGRO.CO.UK

SAFETY, STORAGE & APPLICATION

Page 48: FMC CROP NUTRITION

SOIL PROPERTIES

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DOTTED BLUE line = A stimulates BSTRAIGHT BLUE line = A suppresses BGREEN LINE dotted or straight = mutual stimulation/suppression

importance in soils with high calcium levels. Some soils may test at acceptable levels for boron and yet a significant crop response may be achieved when boron is foliar applied (because in the soil boron is not being released to the plant due to antagonism by calcium).

This example illustrates the importance of correctly interpreting a soil analysis. Simply referring to soil boron levels without regard to other factors could be costly in terms of lost yield.

Applying nutrients via the leaf may obviate the problem of element antagonism in soil (again, application of boron to the soil containing high levels of calcium could result in the boron being ‘locked up’/unavailable to the plant). Other antagonisms include phosphate and zinc and a potential mutual antagonism between potassium and magnesium.

and can antagonise uptake of manganese, zinc and boron. There are various possible reasons for this including a precipitation with calcium carbonate, by affecting pH or by elements being adsorbed to particles of calcium carbonate.

Calcium to boron is a straight line and indicates that calcium may antagonise the uptake of boron. This has

The above chart shows the interaction between elements in terms of plant uptake.

Taking calcium for example has a major impact on the uptake of other elements

MULDERS CHART

NUTRIENT INTERACTIONS

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EFFECT OF PH ONELEMENT AVAILABILITY

pH levels in the soil can affect the availability of elements to plants.

Most micronutrients become less available as the pH increases although boron sometimes shows an increase in availability at pH 9 due to an interaction with hydroxide ions.

Molybdenum however differs from the other micronutrients in becoming more available as the pH increases.

THE INFLUENCE OF SOIL PH ON NUTRIENT AVAILABILITY

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CHEMICAL SYMBOLSArsenic

Calcium

Cadmium

Cation Exchange Capacity

Digestibility Value

Digestibility Crude Protein

Boron Crude Protein

Dry MatterChlorine

Electrical ConductivityCobalt

Lime Requirement

OTHER SYMBOLS

Chromium

Metabolisable EnergyCopper

AmmoniaFluoride

Organic MatterIron

Rumen Degradable ProteinMercury

Iodine

Potassium

Magnesium

Manganese

Molybdenum

Nitrogen

Sodium

Nickel

Phosphorus

Lead

Nitrate

Sulphur

Selenium

Zinc

AS

CaCd

B

ClCoCrCuFFeHgIK

ZnSeSPbPNO3

NiNaNMoMnMg

RDPOMNH3

MELRECDMDCPD-valueCPCEC

CHEMICAL & OTHER SYMBOLS

Page 52: FMC CROP NUTRITION

Web:www.fmc-agro.co.uk

UK Telephone:+44 (0)1244 537 370

Address:FMC Agro Ltd, Rectors Lane, Pentre, Flintshire, CH5 2DH

Unless indicated, trademarks with ® or ™ are trademarks of FMC or affiliates. © 2020 FMC. All other brand names are trademarks of other manufacturers for which proprietary rights may exist.


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