Agricultural production is inseparable from the monthly statistics. The statistics of the UN Food and Agriculture Organization of the United Nations (FAO) show that in increasing yields, chemical fertilizers account for 40 to 60% of crop yield increase. As people often say, “There is no food, no food, no more food, more food, less food. Fat, but the fact is not entirely the case. Some peasant fertilizers are not used less but the output is not high or the yield is high and the income has not increased much. This is because crops differ in their need for nutrients. The amount of fertilizer applied to different types of soil is also different. Fertilizer is not applied as much as possible. Blindly applying too much wastes both fertilizer and production costs, reduces production, and reduces returns. To solve these problems, people proposed soil testing and fertilizer application. Practice has proved the promotion of soil testing and fertilizer application. Fertilizer utilization rate can be increased by 5%~10%, and the increase rate is generally 10%~15%. High rates of up to 20% can save the cost by 10~20 yuan. The implementation of soil testing and formula fertilization can not only increase the utilization rate of chemical fertilizers to achieve cost-effectiveness and efficiency, but also yield stable yields and high yields. It can also improve the quality of agricultural products. Realizing the balance of arable land and fertilizing the soil is a technical measure to increase fertilizer production, save fertilizer and save income. .
It is well-known that the application of chemical fertilizers once brought about an agricultural revolution, and the implementation of a soil testing instrument combined with soil testing and formula fertilization undoubtedly brought about another agricultural revolution. However, the technique of soil testing and formula fertilization has been demonstrated and promoted in China for more than 20 years since the 1980s. However, this revolution still has not formed a prairie fire. The coverage rate in the whole country is only about 30%.
It is well-known that the application of chemical fertilizers once brought about an agricultural revolution, and the implementation of a soil testing instrument combined with soil testing and formula fertilization undoubtedly brought about another agricultural revolution. However, the technique of soil testing and formula fertilization has been demonstrated and promoted in China for more than 20 years since the 1980s. However, this revolution still has not formed a prairie fire. The coverage rate in the whole country is only about 30%.
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