Which among the following crops, if grown simultaneously with Cotton, will increase the yield of Cotton?

Answer: [C] Sun hemp

Sun hemp (Crotalaria juncea L.) is a leguminous, annual plant that can be used as a green manure crop. When grown simultaneously with cotton for a period of 45 days and buried in situ (before flowering) in the furrows, it meets one third of N requirement of the cotton crop and thus the productivity will increase.

This question is a part of GKToday's Integrated IAS General Studies Module