Treatment

Description of treatment in all the four different soils

Control

Soil alone (3 kg soil, 0.45 g urea, 0.45 g Muriate of potash)

Soil + GRP

3 kg soil mixed with GRP, 0.45 g urea, 0.45 g Muriate of potash

Soil + PARP

3 kg soil mixed with PARP, 0.45 g urea, 0.45 g Muriate of potash

Soil + SSP

3 kg soil, 0.9 g SSP, 0.45 g urea, 0.45 g Muriate of potash