Kyushu Shengxin explained the benefits of soil fertilization
At present, farmers still have a lot of blindness in the management of crop fertilization, which is mainly reflected in "emphasis on nitrogen fertilizers and phosphate fertilizers, contempt for organic fertilizers, and neglect of potassium fertilizers and micro fertilizers." Unreasonable proportions lead to soil compaction and poor permeability, which seriously affect the yield and quality of crops. To completely change this status quo, the most fundamental way is to promote the implementation of soil testing formula fertilization technology.
The soil fertilization technology is based on the results of soil testing, field trials, crop fertilizer requirements, agricultural production requirements, etc., based on the rational application of organic fertilizers, the amount and proportion of fertilizers such as nitrogen, phosphorus, potassium and medium and trace elements are proposed Than, and at the right time, use appropriate methods to fertilize scientifically. In summary, the soil testing and fertilization technology mainly includes five core links: "soil testing, formulation, fertilizer blending, fertilizer supply, and fertilization guidance".
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So what are the benefits of fertilization by soil testing? We can understand from the following aspects:
One is to promote changes in farmers' fertilization concepts and methods. The development of soil testing and formula fertilization can change the peasant's blind fertilization practices of "more fertilization is better" and "manure is large, and there is no need to ask people." In terms of fertilization methods, the transformation from spreading and surface application to deep application and fertilization according to the needs of soil and crops reduces blindness and improves scientificity.
The second is that it can play a significant role in increasing income and saving efficiency. Soil testing and formula fertilization can improve fertilizer utilization by 3 to 5 percentage points, save 4 kg of nitrogen fertilizer (urea) per mu, increase grain output by 30 kg to 50 kg per mu, and increase income by 30 yuan to 60 yuan per mu.
The third is to improve the quality of cultivated land. The fertilization by soil testing is based on the rational application of farm manure. In the development of soil testing and formula fertilization, the utilization level of organic fertilizer can be improved, the soil nutrient structure is improved, and the quality of cultivated land is significantly improved.
The fourth is to improve the level of scientific fertilization. Soil testing formula fertilization adopts "soil testing to the field, formula to the plant, fertilizer supply to the point, and guidance to the household" to provide one-stop services for farmers, effectively meeting the requirements of scientific fertilization in different places and different planting scales.
Fifth, reduce agricultural non-point source pollution. Soil testing formula fertilization can change the situation of excessive fertilization and unreasonable fertilization ratio, reduce the loss of nutrients, promote the rational use of resources such as crop straws, livestock and poultry manure, and reduce the pollution of water and farmland by chemical substances and organic waste.
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