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Since 1990, the project has carried out research on the application of dryland fertilization in the typical red soil region, Shuyang County, Hunan Province. In the past 14 years, it has obtained nearly 160,000 analytical data and various microclimate data of various forms of soil nutrient content, yield and quality. Systematic research results.
The experimental data of the amount shows that the combination of organic fertilizer and chemical fertilizer is the best fertilization combination. Organic fertilizer not only increases the amount of soil organic matter, improves the quality, but also effectively increases the amount of beneficial microorganisms in the soil and the activity of soil enzymes. While NPK is combined with organic fertilizer, the nitrogen utilization rate is about 45%, and the combination of organic and inorganic fertilizers can significantly improve the nitrogen utilization rate.
Organic fertilizer and fertilizer are best
The project "Long-term fertilization of red soil quality evolution and compound conditioning technology" completed by Dr. Xu Minggang of the Institute of Agricultural Resources and Agricultural Regionalization has recently passed the expert appraisal organized by the Ministry of Agriculture. Studies have shown that the combination of organic fertilizer and chemical fertilizer is the best combination of fertilization.
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