At present, farmers still have a great deal of blindness in the management of crop fertilization, which is mainly manifested in “emphasizing nitrogen fertilizer and phosphate fertilizer, disregarding organic fertilizer, and ignoring potassium fertilizerâ€. The phenomenon of partial application and abuse of fertilizer is relatively common, and the proportion of NPK fertilizer is unreasonable. , Resulting in poor soil consolidation and permeability, which seriously affect crop yield and quality. At the same time, one-sided dependence on chemical fertilizers, ignoring the application of organic fertilizers, organic fertilizer applications are less and less. To completely change this situation, the most fundamental way is to promote the implementation of soil testing and fertilizer application techniques.
Based on the results of soil testing, field tests, rules for fertilizer requirements of crops, and requirements for agricultural production, soil testing and fertilizer application technology proposes the quantity and ratio of fertilizers such as trace elements in nitrogen, phosphorus and potassium on the basis of rational application of organic fertilizers. At the right time, scientific fertilization is applied using appropriate methods. Soil testing and formula fertilization technology includes five core links: soil testing, formula, fertilizer, fertilizer supply and fertilization guidance.
The benefits and functions of soil testing and formula fertilization mainly include the following aspects:
The first is to promote changes in farmers' ideas and methods of fertilization. The development of soil testing and formula fertilization can change the past farmers' blind fertilization practices of “the better the fertilization, the better the fertilization, and the higher the manure, no need to ask peopleâ€. In the fertilization method, from the spread, the application of the table to the deep and due to the soil, the crop needs fertilization transformation, reduce blindness and improve scientific.
The second is that it can significantly increase revenue and reduce expenditures. Soil testing and formula fertilization can increase fertilizer utilization by 3 to 5 percentage points, save 4 kg of nitrogen fertilizer (urea) per acre, increase grain production by 30 kg to 50 kg per mu, and increase expenditure by 30 to 60 yuan per mu.
The third is to improve the quality of cultivated land. Soil testing and formula fertilization is based on the rational application of farmyard fertilizers. In carrying out soil testing and fertilizer application at all levels, agricultural departments at all levels must actively guide farmers to build farmer's fertilizers, implement technologies such as returning crop residues to farms, increase the utilization of organic fertilizers, improve soil nutrient structure, and significantly improve the quality of cultivated land.
The fourth is to increase the level of scientific fertilization. Soil testing and formula fertilization adopts “test soil to field, formulation to plant, fertilizer supply to point, and guide households†to provide farmers with one-stop service and effectively meet the requirements of scientific fertilization in different places and different planting scales.
Fifth, reduce agricultural non-point source pollution. Soil testing and formula fertilization can change the situation of excessive fertilization and irrational fertilization, reduce the loss of nutrients, promote the rational use of crop stalks, livestock and poultry manure, and reduce the pollution of water and farmland caused by chemical substances and organic waste.
Based on the results of soil testing, field tests, rules for fertilizer requirements of crops, and requirements for agricultural production, soil testing and fertilizer application technology proposes the quantity and ratio of fertilizers such as trace elements in nitrogen, phosphorus and potassium on the basis of rational application of organic fertilizers. At the right time, scientific fertilization is applied using appropriate methods. Soil testing and formula fertilization technology includes five core links: soil testing, formula, fertilizer, fertilizer supply and fertilization guidance.
The benefits and functions of soil testing and formula fertilization mainly include the following aspects:
The first is to promote changes in farmers' ideas and methods of fertilization. The development of soil testing and formula fertilization can change the past farmers' blind fertilization practices of “the better the fertilization, the better the fertilization, and the higher the manure, no need to ask peopleâ€. In the fertilization method, from the spread, the application of the table to the deep and due to the soil, the crop needs fertilization transformation, reduce blindness and improve scientific.
The second is that it can significantly increase revenue and reduce expenditures. Soil testing and formula fertilization can increase fertilizer utilization by 3 to 5 percentage points, save 4 kg of nitrogen fertilizer (urea) per acre, increase grain production by 30 kg to 50 kg per mu, and increase expenditure by 30 to 60 yuan per mu.
The third is to improve the quality of cultivated land. Soil testing and formula fertilization is based on the rational application of farmyard fertilizers. In carrying out soil testing and fertilizer application at all levels, agricultural departments at all levels must actively guide farmers to build farmer's fertilizers, implement technologies such as returning crop residues to farms, increase the utilization of organic fertilizers, improve soil nutrient structure, and significantly improve the quality of cultivated land.
The fourth is to increase the level of scientific fertilization. Soil testing and formula fertilization adopts “test soil to field, formulation to plant, fertilizer supply to point, and guide households†to provide farmers with one-stop service and effectively meet the requirements of scientific fertilization in different places and different planting scales.
Fifth, reduce agricultural non-point source pollution. Soil testing and formula fertilization can change the situation of excessive fertilization and irrational fertilization, reduce the loss of nutrients, promote the rational use of crop stalks, livestock and poultry manure, and reduce the pollution of water and farmland caused by chemical substances and organic waste.
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