Organic farming is the technique of raising crops through the use of

Options

A. manure
B. biofertilisers
C. resistant varieties
D. all of these.

Answer

D

Explanation

Organic farming is defined as production of plant products by a farming system using organic manures, biofertilizers, biopesticides, resistant varieties, crop rotation and intercropping instead of using harmful chemical fertilizers, herbicides and pesticides.