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Nutrient Determination Methods in the Laboratory

 

Nutrient Determination Methods in the Laboratory


In the present scenario, the soil is sick and deficient to many more nutrients. So, soil testing is very must. For determining of the availability of different nutrients particular method is useful.In the soil testing, different methods are used to determine the total and available nutrients in the laboratory. They are as under-

S.No.

Nutrient Determination

Analysing Process

1.

Available Nitrogen

Alkaline Permagnet Method

2.

Total Nitrogen in Soil

Kzeldahl Method

3.

Phosphorus in Neutral and Alkaline Soil

Olsen's Method

4.

Phosphorus in Acid Condition

Bray No. 1

5.

K+ and Na+

Flame Photometer

6.

Sulphate Sulphur

Terbimatric Method

7.

Available Potash

Chromic Acid Digestion Method

8.

Organic Carbon

  • Walkle and Black Method
  • Rapid Oxidation Process (KMnO4)
  • Morgan's Method
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Please note that this is the opinion of the author and is Not Certified by ICAR or any of its authorised agents.