DETERMINATION OF POTASSIUM IN SOIL (Han Way and Heidel 1952 Method)

         DETERMINATION OF POTASSIUM IN SOIL 

       (Han Way and Heidel 1952 Method)

Procedure:

Take 5 gm of Soil Sample in 100 ml of Conical Flask

 ⬇

Add 25 ml of Ammonium Acetate of 1.0 Normality and Maintain pH 7.0 with Glacial Acetic Acid & Ammonium Solution

⬇

Shake for 30 Minutes

⬇

Filter into 100 ml Beaker through Whatman paper No.1

⬇

Take Reading by Flame Photometer of the Filtrate