Symbols

Particulars

F1

4 gm of soil samples was extracted with 40 ml of 1M NH₄Cl after shaking for 2 hours (h) at room temperature on a mechanical shaker.

F2

The residue from F1 was extracted with 40 ml of 0.005 M DTPA after shaking for 2 hours (h) at room temperature on a mechanical shaker.

F3

The residue from F2 was extracted with 40 ml of 1 M HCl after shaking for 2 hours (h) at room temperature on a mechanical shaker.