Whenever we go out we spend a lot money on food.

The genetic material leads to production of sterile hybrid on crossing with primary gene pool is called-

Self-incompatibility does not exist in which mango variety

Crop rotation is defined as a:

Conversion of NH4 to NO2 in soil is brought about by

The naturally occurring contact insecticides developed from tobacco

DAPOG method of crop raising is associated with

Soil layer that is rich in iron oxide and derived from rocks weathering under oxidizing and leaching conditions

Most predominant cropping system in India is

The seed rate for summer mungbean or greengram is

Which one of the following pairs is not correctly matched