Denitrification is a process of

Most of the soil organisms are

Actinomycetes prefer which condition for their growth

Rhizobium is an ------ organism

Nitrification process ceases at pH

Nitrification rapid in ---- season

The peak microbial population was observed in soil generally after addition of residue

Ammonia volatilization is purely process of

Which element suppressed Downy mildew of pear millets?

Improper development of wheat inflorescence is due to deficiency of

Organic matter obtained

Saturated hydraulic conductivity is measured by

Which chemical compound is used for improve soil aeration, infiltration and water holding capacity of soil

Reddish colour in muriate of potash is due to

Feldspars is primary mineral that occurs predominantly in

Carbon dioxide content in rainwater is

Bedrock is absent in which soil?

The honey-comb structure found in

Which soil occur mainly a soil crust problem ?

Black colour of soil is due to (IARI Ph.D)

Total soil orders found in world?