Legume cover crops (LCC) are legume plants planted to cover the soil surface and provide benefits to both the main crop and the environment. LCC have the ability to fix nitrogen from the air through symbiosis with Rhizobium bacteria, thereby increasing soil fertility. Furthermore, LCC also helps suppress weed growth, protect the soil from erosion, and maintain soil moisture.
Here are some benefits and examples of LCC:
Benefits of LCC:
Nitrogen fixation: LCC can fix nitrogen from the air and make it available to the main crop, reducing the need for nitrogen fertilizer.
Weed suppression: Covering the ground with LCC can inhibit weed growth, thereby reducing competition with the main crop.
Erosion prevention: The strong roots of LCC can prevent soil erosion caused by rain and wind.
Soil moisture preservation: LCC can maintain soil moisture and prevent water evaporation.
Increase soil organic matter: The decomposed LCC biome will increase the soil organic matter content, thereby improving soil fertility.
Supporting the growth of main crops: LCC can create a better microenvironment for main crops, such as maintaining soil temperature and increasing nutrient availability.