Prepared by:Nuridayu binti

Yusmaidi2015673712

Fertilizer analysis

• WEEK 1 &2 – sample preparation for N, theory of elemental analyzer

• Week 3 & 4- BOE analysis, soil analysis (total phosphorus, available phosphorus and moisture content)

• Week 5- fertilizer analysis (digestion, moisture content, particle size)

INTRODUCTION

fertilizer-substances that added to the soil or plant tissues.

What is fertilizer?

Objective

Determination of element N,

P, K, Mg & B

Provide nutrient for

healthy plant growth

To check specification of elements by company

Determination of the moisture

content

Types of fertilizer

Straight fertilizer

Example: Rock phosphate(RP)

Compound fertilizerExample:

R3Z,AJIB RCFMixture fertilizer

Example: RCGB

Register

Place fertilizer

samples in the vial

Grind

Weigh 2.5g of

fertilizer samples

Add distilled water until the mark at

75mL

METHODOLOGYDetermination of P, K, Mg and B using ICP machine

Add 10 mL of HCl and 5 mL of Nitric

Acid

Digestion Cool the samples for 5 minutes

Add distilled water until the volume of beaker

200mL

Transfer into the 500mL of

volumetric flask

filter

Keep the plastic vial in

the tray

1. Weigh 10 g of raw

material into the dish

2. Place the dish into the

oven for 2 hours at 103°C

3. Cool in the desiccator

(10 minutes)

4. Weigh again and record the

reading

5. Repeat step 2 until 4 for 2

times

6. Dispose the

sample

Determination of moisture content

RESULTSDetermination of N, P, K, Mg and B

STATUS SPECIFICATION (R3Z)

CALCULATION CHECK STATUS SPEC (R3Z)

Element % N(Ammonium sulfate, SOP)

% P2O5(Rock Phosphate, RP)

% K2O(Murite of

Potash, MOP)

% MgO(Kieserite)

% B2O3(Boric)

Spec elements

9.0 6.0 18.0 2.0 0.5

Analysis data

12.1 6.7 18.4 3.0 0.5

Calculation

8.28

Determination of moisture content

Percent by weight

W1 is the weight in g of the sample taken.W2 is the weight in g of the sample after drying to constant weight.

Sample ID = 327Sample weight (g) = 10.000Dish weight (g) = 29.470Weight (dish + sample) after (g)= 39.076

W1 = 10.000W2 = 9.606

EXAMPLE CALCULATION MOISTURE (%)

CONCLUSION

ELEMENT FUNCTION

N To assist the growth of trees.

P Important in cell division and development of new tissue.

K Required in large amounts for proper growth and reproduction of plants.

Mg Building block of chlorophyll which makes leaves appear green.

B Role in forming and strengthening cell walls.

Chlorophyll (C55H72N4O5Mg)