Page 209 - e-Book

Analysis of Soil Profiles

Soil Profile: Determination of pH, Total Suspended Solids(TSS), Organic Carbon(OC),

Phosphorus(P), Potassium(K).
Collection of Soil: To carry out the analysis, 3 different soil samples were collected from the

flood effected area in which 2 samples were collected from Kannadikkal and remaining from

Ramanattukara. The sample 1 from Kannadikkal was collected from the field. Sample 2 was
collected from the road side. Sample 3 was collected from the field, Ramanattukara.

Drying of Soil:The collected 3 sample of soils were dried for 1 week .

pH monitoring :
Requirements : Soil ,distilled water, pH meter.

Procedure : 1.Soil and water is taken in a ratio 1:2.5, 2.10g soil is added to 25ml of distilled
water and pH is checked using pH meter.

Organic Carbon

Requirements: soil ,potassium chromate, conc.sulphuric acid, distilled water, colorimeter ,test
tube.

Procedure :
1.1g soil added 10 ml of potassium chromate.

2.Add 10ml of conc.H2SO4.

3.After half an hour add 20ml of distilled water.
4.Colorimetry carried out.

Phosphorus

Requirements: soil , brays reagent , Wattsmann I filer paper, reagent A , reagent B(reagent
A+ boric acid), colorimeter.

Procedure:
1.Take 2.5g soil.

2.Add 25ml of Brays reagent.
3.Five minute shake in an orbital shaker.

4. After shaking pass to attest tube contain Wattsmann I filter paper.

5. Take 5ml filtered solution and add 3.5 ml of reagent A.
6. Add 4ml of reagent B.

7. Solution turns blue.

8. Pass in to colorimeter.

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