What Are the Functions of Green Manure? Learn the Main Uses in One Article
Green manure, as the name suggests, is a type of fertilizer made from green plants. Green manure has very comprehensive nutrients, so many people today plant some green manure when growing crops. Green manure is very beneficial to crop growth and also greatly improves the soil environment. So what exactly are the functions of green manure? Below, the editor will give you a brief introduction. Let's take a look together!
1. Improving Soil
When we apply chemical fertilizers while growing crops, no matter how we combine them, we need to pair them with some limited elements. The two basically cannot guarantee meeting the growth needs of crops. This is especially true for the soil's fertilizer requirements, and green manure can effectively solve this problem. Green manure is rich in organic matter and can provide a large amount of organic matter to cultivated land, thereby improving the soil and enhancing soil quality. It can also reduce the application of chemical fertilizers and the use of pesticides, increase soil fertility, and thus promote crop growth.
2. Providing Nutrients
Providing nutrients is one of the most important functions of green manure. Green manure has the effect of activating and absorbing potassium, and some leguminous green manures also have a nitrogen-fixing effect. Moreover, when green manure grows, it can produce a great deal of organic matter, so it can provide a large amount of nutrients for crop growth, thereby increasing crop yields. When continuous cropping is practiced, if some green manure is interplanted, it can also effectively reduce the continuous cropping obstacles caused by some crops, thereby reducing the occurrence of pests and diseases. This is especially true for areas where a single crop has been grown for a long time and where continuous cropping and replanting obstacles are severe; the effect of interplanting green manure is very good.
3. Improving the Environment
When growing crops, planting an appropriate amount of green manure can effectively reduce soil erosion in the planting area. It enhances the resilience of the ecological environment, especially for areas where the land is bare in winter; planting one season of green manure appropriately has a very good effect. If sown in autumn, then covered in winter to let it go dormant, and then allowed to turn green again in spring, it can not only make use of the land resources for half a year, but also fully utilize natural resources such as light, heat and water. This achieves the effect of improving the ecological environment, and at the same time green manure can also serve as a forage material to ensure feed security.
4. Reducing Costs
When growing crops, fertilization work is naturally indispensable, and fertilizer is also very important for crop growth. If common fertilizers such as chemical fertilizers are used, growers need to invest a great deal in fertilizer costs. This leads to a decline in planting returns, while planting green manure can effectively reduce the input cost of chemical fertilizers and other fertilizers. In this way, the purpose of lowering planting costs is achieved, and the planting returns of growers are improved.
The above is a brief introduction to the functions of green manure. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!