The capacity of soil to resupply an ion into soil solution is called

Optimum pH for nitrification is

Soil structure can be improved by application of

If the hydrogen ion activity is 0.001 M then what will be the pH

Following one is not zonal pedogenic process

Rock phoshate most suitable for

SSP is mixture of

Buffering capacity is highest between pH

Dominant organism in forest soils

Q / I relationship for P was given by

More organic matter present in