Question

A pulse crop is grown between two cereal crops to compensate for the________.

• A. loss of phosphate
• B. loss of water
• C. loss of sulphur
• D. loss of nitrogen

Answer 1

The correct option is D

loss of nitrogen

Cereal crops are nutrient exhaustive in nature. Pulses are leguminous plants which are capable of restoring soil fertility by means of the symbiotic associations in their root nodules. The nitrogen-fixing bacteria of root nodules fix the atmospheric nitrogen and return the soil fertility. Hence, a pulse crop is grown between two cereal crops to compensate for the loss of nutrients.