The reddish colour of Red soils develops due to ________

Black soils are black in colors due to humus, Iron and __________

An application of the accounting principles to the business of farming is:

Khaira disease in rice is due to deficiency of:

The T value (soil loss tolerance) refers to __________for a specific soil.

Chemosterilants are the chemical compound used to control economically destructive or disease-causing pests by causing

Red and Far-red light absorbing, bluish photoreceptor, which is present in the cytosol of plants, is:

Gaseous Hormone in plants is called -

Pyrethrin is made up of six toxic chemicals that together constitute an insecticidal property is extracted from

For common plants transpiration ratio varies between: