Recently, the results of the “Study on the Methods of Soil Nutrient Supply Strength and Proportional Fertilization Theoryâ€, chaired by Dr. Qi Qinghe, a researcher of Shanxi Academy of Agricultural Sciences, passed the expert appraisal. The expert appraisal team led by Zhao Qiguo, an academician of the Chinese Academy of Sciences and an expert on soil and agricultural sustainable development, believes that the results have reached the international leading level in the research of nitrogen and phosphorus ratios under fertilization and marginal yield and appropriate potassium conditions, providing new opportunities for crop breeding in China. The method is of great significance for the continuous realization of grain production in China.
In the field fertilizer experiment, Dr. Qi Qinghe found that crop yields are not only dependent on the soil nutrient content, but also related to the nutrients of the fertilized raw materials. Applying the theory to practice, Minqing River discovered the law of soil nutrient type and optimal fertilization ratio: the yield of crops is not only determined by the maximum amount of fertilization, but more importantly by the optimal fertilization ratio. According to the theory and regulation of fertilization technology, fertilization experiments on corn, wheat, rice, tobacco, and potatoes grown in different regions and different types of soil have achieved an effect of increasing yield by about 30%.
This research breaks the traditional empirical fertilization method, introduces the concept of optimal fertilization ratio, and clarifies the optimal fertilization ratio, the fertilization significance of the maximum fertilization amount and the close relationship with the high yield of crops; the development of crop seedling plants A new technology for determining the yield potential level of nitrogen by nitrogen content.
It is understood that the results obtained in this project are conducive to a new understanding of the problem of reduced fertilization economic efficiency and product quality reduction. The application of soil nutrient types and optimal fertilization ratio rules to guide production and fertilization techniques is conducive to the overall improvement of the economic effects of fertilization in China. The quality of agricultural products reduces environmental pollution.
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