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Farmacist Controlled Release N Work

2013 Harvests


Providing precision agronomy solutions

Burdekin Controlled Release N 2013 Harvest

Agrocote

Jayson Dowie



Treatment Descrip.on N Rate (kg/ha) tCane/ha CCS tSugar/ha Net Return ($/ha)

T1 100% Urea 200 122.49 c 14.82 a 18.12 c $ 3,920.63

T2 25% Agrocote 200 134.94 ab 15.13 a 20.38 a $ 4,380.75

T3 50% Agrocote 200 134.25 ab 14.30 a 19.17 abc $ 3,765.83

T4 75% Agrocote 200 140.13 a 14.29 a 19.94 ab $ 3,788.87

T5 100% Urea 160 125.32 bc 14.96 a 18.74 bc $4,135.87

T6 50% Agrocote 160 128.97 abc 14.63 a 18.86 abc $ 3,867.46

T7 100% Urea 120 123.55 bc 14.80 a 18.23 c $ 4,048.79

T8 50% Agrocote 120 104.22 d 14.65 a 15.22 d $ 3,157.08

Agrocote trial


R² = 0.88343

120

122

124

126

128

130

132

134

136

138

140

142

3600

3700

3800

3900

4000

4100

4200

4300

4400

4500

0% 10% 20% 30% 40% 50% 60% 70% 80%

$/ha

(Net Return)

Agrocote percentage of Blend

$/ha

tC/ha

Poly. ($/ha)

Poly. (tC/ha)


Summary

At 200N, CRF has a significant impact on producYon. •  Increase of up to 18 tonnes in Cane, 2 tonnes of sugar and returns of $460/ha

•  The 25% blend was the opYmal blend for this soil type.

•  More work is needed to explore different soil types and improve NUE and WQ – impending forums.


Young N Product Trial •  Q232 fallow plant, 12kg/ha N at plant, balance at topdressing

•  Sandy Loam Duplex, 0.38-‐1.4% OC (WB)

Treatment Name

N kg/ha

applied

1. 100% N 6ES – UreaS 140

2. 100% N 6ES -‐ UreaS50:Agrocote50 140


4. 70% N 6ES -‐ UreaS 100 98



0

0.5

1

1.5

2

2.5

3

100%

N-‐ U

reaS

100%

N -‐

80% N -‐

70% N -‐ UreaS 100

70% N -‐

100%

N -‐ UreaS

100%

N -‐

80% N -‐

70% N -‐ UreaS 100

70% N -‐

100%

N -‐ UreaS

100%

N -‐

80% N -‐

70% N -‐ UreaS 100

70% N -‐ 3r

d Leaf Nitrogen

%

Young Trial -‐ Leaf Tissue N%

CriYcal Value Jan-‐13 Apr-‐13


Treatment t cane/ha CCS t sugar/ha Nkg/t cane

100% N -‐ UreaS 86.8 a 15.0 a 13.0 a 1.6 a

100% N -‐ UreaS50:Agrocote50 85.6 a 15.5 a 13.2 a 1.6 a

80% N -‐ UreaS50:Agrocote50 82.0 a 15.3 a 12.5 a 1.4 b

70% N -‐ UreaS 100 83.5 a 15.5 a 12.9 a 1.2 c

70% N -‐ UreaS50:Agrocote50 83.4 a 15.3 a 12.8 a 1.2 c

LSD (P=.05) 7.6 0.5 1.0 0.1

Standard DeviaYon 4.0 0.2 0.5 0.1

Young N Product Trial


Young N Product Trial

•  CR Urea cost an important consideraYon

Treatment Name

N kg/ha

applied

N cost

$/ha

$ Advantage

over T1

1. 100% N 6ES – UreaS 140 273 0

2. 100% N 6ES -‐ UreaS50:Agrocote50 140 413 -‐140


4. 70% N 6ES -‐ UreaS 100 98 191 82



Joe Muscat Agrocote Product Trial Objective •  Evaluate slow release N product for improved yield on

deep sandy soil with leaching potential

Treatment Product rate kg/ha N P K S 1 Urea S 336 138 17 Lo N Planter 4.1 m3 46 29 116 31

Total 184 29 116 47 2 Agrocote 234 89 26

Lo N Planter 4.1 m3 46 29 116 31 Total 134 29 116 57 1R Harvest date 15/09/2012 FerYliser applicaYon date Lo N planter 26/09/2012 FerYliser applicaYon date 16/10/2012 Agrocote & UreaS Agrocote 38:0:0:13 pH 4.9, OC% 0.61, CEC 1.09


2013 Harvest Results

Treatment t cane/ha CCS t sugar/ha

Lo N Planter + Urea S 87.1 a 16.4 a 14.3 a

Lo N Planter + Agrocote 83.4 a 16.8 a 13.98 a

LSD (P=.05) 5.51 1.02 1.48

Joe Muscat Agrocote Product Trial


Matsen N Efficiency Trial Objective •  Evaluate nitrogen fertiliser practices for improved yield and

environmental outcomes on duplex soil subject to waterlogging

No. Descrip.on Product Rate per

ha N P K S 1 Standard PracYce Lo N Planter 3.5m3/ha 39 25 99 26 Urea 263 121 0 0 0 total 160 25 99 26 2 Split N ApplicaYon Lo N Planter 3.5m3/ha 39 25 99 26 Urea 196 90 0 0 0 Easy N 72.9 31 total 160 25 99 26 3 Agrocote Blend Lo N Planter 3.5m3/ha 39 25 99 26 Urea 193 89 0 0 0 Agrocote 84.2 32 11 total 160 25 99 37 4 Agrocote straight Lo N Planter 3.5m3/ha 39 25 99 26

Agrocote 213.2 81 28 total 120 25 99 54


Matsen N Efficiency Trial

Treatment t cane/ha CCS t sugar/ha Nkg/t cane

Standard PracYce 83.4 a 18.8 a 15.6 a 1.9 a

Split N – Urea + Easy N 82.58 a 18.7 a 15.4 a 1.97 a

Agrocote Blend 82.66 a 18.9 a 15.7 a 1.97 b

Agrocote Straight 79.67 a 18.8 a 14.99 a 1.53 c

LSD (P=.05) 7.15 0.65 1.14 0.16

2013 Harvest Results


Report of Nitrous oxide gas emissions from Simpson site:

2012-‐13 season Simpson N2O site

•  Q232 fallow plant, topdressing applicn •  Black cracking clay, 2.4-‐2.9% OC (WB) 3 treatments 1. Standard Urea 95kg N/ha 2. Entec Urea 95kg N/ha 3. CR Urea (Agrocote 38%) 95kg N/ha



Report of Nitrous oxide gas emissions from Simpson site:

2012-‐13 season Treatment N Rate kg/ha Cumula.ve N

loss N kg/ha/season

Urea 95 5.4

Entec Urea 95 5.3

CR Urea 95 6.1

There were no significant (P=0.05) differences in N2O emissions between N fertiliser forms from the row position on any occasion.


Simpson Trial – 0kg N


Commercial ApplicaYon

•  CR urea blends effecYve •  CR urea blend cost is an adopYon issue •  CR urea blend %’s need work •  Split N previous adverse experiences – grower resistance

Date post:	10-Feb-2018
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