Organic fertilizers include all fertilizers that can be used in addition to chemical fertilizers. They are usually based on human and animal waste, crop straw and green manure. The organic fertilizer has comprehensive nutrient and long-lasting balanced fertilizer effect. It can not only improve soil structure, improve soil fertility, promote soil nutrient release, but also supply crop nutrients, especially for the development of organic agriculture, green agriculture and pollution-free agriculture. However, there are many types of organic fertilizers, and their functions are different. In the autumn season, it is necessary to pay attention to the application of organic fertilizers, and avoid blind fertilization. Pay attention to the following points in application:
First, the nutrients contained in organic fertilizers are not omnipotent. Organic fertilizers contain many nutrients, which are superior to chemical fertilizers, but they contain nutrients that are not balanced and cannot meet the needs of high crop yields. When applying organic fertilizer, the fertilizer should be applied according to the nutrient requirements of the crop. Even the farmland producing green food should be mixed with mineral fertilizer, and various foliar fertilizers should be applied during the growth of the crop. Just as there is no panacea in the world, there is no omnipotent organic fertilizer.
Second, the decomposition of organic fertilizer is slower and the fertilizer effect is later. Although organic fertilizer has a full range of nutrient elements, it decomposes slowly in the soil, and it is difficult to meet the nutrient requirements of crops when the amount of organic fertilizer is not large. The content of nutrients in fertilizers is high, and the fertilizer efficiency is rapid. According to the amount of crops needed, it can be supplemented in a targeted manner, but the fertilizer efficiency is short. The combination of organic fertilizer and chemical fertilizer can take advantage of each other's strengths to meet the needs of crops for the quantity and time of various nutrients. In order to obtain high yield, a certain amount of chemical fertilizer should be applied to achieve a slow combination.
Third, the organic fertilizer needs to be fermented. Many organic fertilizers contain germs, eggs and weed seeds. Some organic fertilizers also contain organic compounds that are not conducive to crop growth. Therefore, organic fertilizers should be applied after stack fermentation and processing. Under the ground.
Fourth, the use of organic fertilizer is contraindicated. The decomposed organic fertilizer should not be mixed with the alkaline fertilizer. If it is mixed with the alkaline fertilizer, it will cause the evaporation of ammonia and reduce the nutrient content of the organic fertilizer. Organic fertilizer contains more organic matter and should not be mixed with nitrate nitrogen fertilizer.
First, the nutrients contained in organic fertilizers are not omnipotent. Organic fertilizers contain many nutrients, which are superior to chemical fertilizers, but they contain nutrients that are not balanced and cannot meet the needs of high crop yields. When applying organic fertilizer, the fertilizer should be applied according to the nutrient requirements of the crop. Even the farmland producing green food should be mixed with mineral fertilizer, and various foliar fertilizers should be applied during the growth of the crop. Just as there is no panacea in the world, there is no omnipotent organic fertilizer.
Second, the decomposition of organic fertilizer is slower and the fertilizer effect is later. Although organic fertilizer has a full range of nutrient elements, it decomposes slowly in the soil, and it is difficult to meet the nutrient requirements of crops when the amount of organic fertilizer is not large. The content of nutrients in fertilizers is high, and the fertilizer efficiency is rapid. According to the amount of crops needed, it can be supplemented in a targeted manner, but the fertilizer efficiency is short. The combination of organic fertilizer and chemical fertilizer can take advantage of each other's strengths to meet the needs of crops for the quantity and time of various nutrients. In order to obtain high yield, a certain amount of chemical fertilizer should be applied to achieve a slow combination.
Third, the organic fertilizer needs to be fermented. Many organic fertilizers contain germs, eggs and weed seeds. Some organic fertilizers also contain organic compounds that are not conducive to crop growth. Therefore, organic fertilizers should be applied after stack fermentation and processing. Under the ground.
Fourth, the use of organic fertilizer is contraindicated. The decomposed organic fertilizer should not be mixed with the alkaline fertilizer. If it is mixed with the alkaline fertilizer, it will cause the evaporation of ammonia and reduce the nutrient content of the organic fertilizer. Organic fertilizer contains more organic matter and should not be mixed with nitrate nitrogen fertilizer.
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