Which agricultural practice will not provide an alternative to the use of ammonium nitrate as a fertiliser to increase the productivity of wheat?

A growing wheat and another cereal crop in the same field in alternate years

B growing wheat and beans in the same field in alternate years

C ploughing animal waste such as dung into the soil

D using synthetic urea as a fertiliser

Question

Which agricultural practice will not provide an alternative to the use of ammonium nitrate as a fertiliser to increase the productivity of wheat?

A    growing wheat and another cereal crop in the same field in alternate years

B    growing wheat and beans in the same field in alternate years

C    ploughing animal waste such as dung into the soil

D    using synthetic urea as a fertiliser

anonymous · Answer

and yeah if some one an come up with a valid reason it would be highly appreciated

anonymous · Answer

i think D is the answer.

anonymous · Answer

Its D

anonymous · Answer

sorry, i cant seriously prove C and D.
 in A,"in the same field in alternate years".so between the growing years, the soil can become fertiliser.
in B, wheat use nitrogen and bean can increase it.

anonymous · Answer

the root of bean can nurture a kind of germ to absorb nitrogen from atmosphere.