a cereal crop needs a lot of nitrogen , when we grow leguminous plants we get a lot of nitrogen as it has a symbiotic relationship with rhizobium bacteria.

Benefits of growing leguminous plants after a cereal crop:
Leguminous plants are a popular choice for farmers to grow after a cereal crop due to their numerous benefits. Here are some reasons why farmers opt for this practice:

Nitrogen fixation:
- Leguminous plants have the ability to fix atmospheric nitrogen into the soil through a symbiotic relationship with rhizobia bacteria present in their root nodules. This helps in replenishing the soil with nitrogen, which is essential for plant growth.

Improving soil fertility:
- The nitrogen fixed by leguminous plants not only benefits the current crop but also enriches the soil for future crops. This helps in maintaining soil fertility and reduces the need for synthetic fertilizers.

Rotational benefits:
- Planting leguminous plants after a cereal crop helps in breaking the cycle of pests and diseases that may have built up in the soil. This crop rotation practice can help in reducing the incidence of soil-borne pathogens.

Enhancing soil structure:
- Leguminous plants have deep root systems that help in improving soil structure by breaking up compacted soil layers. This allows for better water infiltration and root penetration for subsequent crops.

Increased crop yield:
- The nitrogen-rich soil provided by leguminous plants can lead to increased crop yields for the following crop. This can result in better overall farm productivity and profitability.
In conclusion, growing leguminous plants after a cereal crop is a sustainable agricultural practice that provides various benefits for both the soil and subsequent crops. Farmers can improve soil fertility, enhance crop yields, and promote overall soil health by incorporating leguminous plants into their crop rotation plans.