Green manure has the effect of improving soil and fertility, increasing grain yield and quality, and also an effective way to increase farmers' income and agricultural efficiency. Recently, Liu Cunshou, a professor at the College of Resources and Environment of Northwest A & F University, pointed out in an interview that green manure is used in agricultural production. It plays a big role, and friends of farmers should pay attention to the application of green manure.
Regardless of how the improved soil chemical fertilizers are used together, they are matched with a limited number of elements, and it is difficult to solve all the needs of the crop, especially for the demand for comprehensive soil fertility. Green fertilizer can make up for these shortcomings. Green manure can provide a large amount of organic matter to cultivated soil, improve soil microbial properties, thereby improving soil quality, reducing the input of chemical fertilizer products, and fertilizing soil fertility, thereby improving crop yield and quality, while also greatly reducing pesticides The amount.
Providing nutrients Green manure can activate and absorb potassium, leguminous green manure can also fix nitrogen, and green manure growth can also generate a large amount of organisms to return to the farmland, so it can provide a lot of nutrients and can effectively increase crop yield. Inserting a crop of green manure in the continuous cropping process can greatly reduce the continuous cropping obstacles of some crops and reduce the occurrence of diseases and insect pests; especially in areas where long-term planting of some crops or continuous cropping obstacles is severe, inserting green manure is very effective.
Improving the environment Green manure can effectively reduce soil and water loss in planting areas and enhance ecological environment resistance. In North China, bare land has been quite common in winter in recent years. The development of green manure in the first quarter is very effective. In spring, greening can not only use about six months of land resources, but also use about four months of light and heat water resources, which can effectively improve the ecological environment; green manure is also a high-quality forage raw material, which can solve a large number of green fodder sources, Substitute feed grain to further ensure food security.
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