Which crop is grown between two cereal crops to restore the fertility of soil?

The crop typically grown between two cereal crops to restore soil fertility is a leguminous crop.

Here's why:

* Nitrogen Fixation: Legumes (like peas, beans, lentils, clover) have a symbiotic relationship with bacteria called rhizobia. These bacteria live in nodules on the legume roots and convert atmospheric nitrogen into a form that plants can use (nitrate). This process, called nitrogen fixation, replenishes the soil with nitrogen, a crucial nutrient for plant growth.

* Improving Soil Structure: Legumes have deep roots that help improve soil structure by loosening compacted soil and increasing aeration.

* Other Benefits: Legumes also contribute organic matter to the soil, which enhances soil fertility and water retention.

Examples:

* Clover: Often used as a cover crop between cereal crops.

* Alfalfa: Another popular legume used for soil improvement.

Growing a legume between cereal crops helps break the cycle of nutrient depletion and restores the soil's natural balance, leading to healthier and more productive crops.