Manure is rich in organic matter and various nutrients needed for crops, which have a good effect on increasing crop yield and improving soil fertility, and have been widely used in agricultural production. In ancient times, it was said that “manure is more than fertilizer, and fertilizer is more than Tianwo and Tianwo is more”. In recent years, with the increase in the irrational application of manure, various problems have followed.
Before manure application, the manure must be fully decomposed and decomposed rapidly after decomposition, which is beneficial to plant absorption. At the same time, in the high-temperature anaerobic environment of 60°C to 70°C, most harmful insect eggs and weed seeds will die. There are currently three commonly used methods for decomposing manure: One is to combine high-temperature stuffy sheds to decompose the manure. The long period of leisure in the greenhouse can be combined with high-temperature stuffy sheds to decompose the manure. The process of decomposed fermentation is also the process of improving the soil. During fermentation, microorganisms in the soil are very active and can promote the formation of soil aggregates. The second is stuffy stuffy outside the shed. There is enough time for natural heaping and fermentation, and for a short period of time it is possible to apply biological decomposer when the heap is decomposed. The third is the rapid fermentation of microbial agents. Commonly used ETS bacteria, etc., can shorten the fermentation time.
According to different soil quality, different manures are selected. Some greenhouses have large sand, and the leakage of water is serious. Therefore, manure should be selected from pure chicken manure or pure pig manure. This manure has higher purity and higher nutrient content because the manure is more viscous. Heavy, it has a good improvement effect on the leakage of sand leakage land. For clay soils, manure with high organic matter content and low mineral element content, such as sheep manure and cow dung, or chicken manure containing sand, rice husks, straw, and pig manure should be applied to improve the physical properties of the clay soil and improve Its permeability to water permeability. This type of manure is also very suitable for improving the soil in the soil where the soil is heavily salted and hardened.
After manure application, a large amount of manure is required to be concentrated in soil 10 to 15 cm above the surface. Although mixed with the soil, the manure is still relatively concentrated. Even if it has been decomposed, the amount is so large and the depth of plowing is shallow. It will also affect root growth. Therefore, after the application of manure, deep plowing should be performed. Generally, the depth of plowing should exceed 30 cm.
Note that although the nutrient contained in the manure application is comprehensive, the total amount cannot reach the absorption and utilization of the crop. Therefore, the combined application of manure and chemical fertilizer can reduce the impact of chemical fertilizer residue on the soil and ensure that the nutrients in the chemical fertilizer can be timely It is absorbed and utilized by crops. Manure application combined with biological bacterial fertilizer can accelerate the decomposition of manure and accelerate the rate of soil improvement. Manure material can promote the proliferation of biological bacteria, and consolidate the protection and growth-promoting effect of beneficial bacteria on the root system. Http://
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