What kind of soil and crop grain did it 30 years ago? What are the subtle differences in soil fertility and pH in 30 years, and how do crop yields and quality change? These can be found at the Texas Academy of Agricultural Sciences. With 30 years of boring persistence, the experimental station has accumulated systematic and persuasive scientific formula fertilization big data, and answered “how to achieve zero or even negative growth of fertilizer use while ensuring high yield and quality of crops†Major scientific propositions and major agricultural production problems have convinced international peers - David Powlson, former chairman of the British Soil Society and former director of the Lausanne Institute with more than 170 years of history, to give a thumbs up: "Your experiment It is unique in the world!"
Zhao Bingqiang, the stationmaster of the experimental station, said that weight loss and efficiency and green production have become the major agricultural development trends in developed countries in Europe and the United States in the past 30 years. At present, China's agriculture has also stood at the important gate of “zero growth in fertilizer use and high yield and stable production under negative growth conditionsâ€.
To this end, since 1986, the experimental station has implemented the world's most complete and longest-lasting organic/inorganic combined fertilization positioning monitoring test group, including: chemical fertilizer, organic fertilizer, organic/inorganic combined fertilization system for long-term positioning monitoring Experiment; long-term experiment of different types of organic fertilizers and chemical fertilizers combined with fertilization; quantitative study of nutrient cycling process in fertilization system.
The results of 30-year localization monitoring showed that under the same conditions of nitrogen nutrient, the nitrogen environmental impact of chemical fertilizer was significantly higher than that of organic fertilizer (the ammonia volatilization contributed to haze), and the phosphorus environmental impact of organic fertilizer was higher than that of chemical fertilizer (long-term use) The soil accumulation caused by phosphorus is polluted by water bodies);
50% of organic fertilizer and chemical fertilizer are combined. In the production of winter wheat and summer corn, the typical crops in the Huang-Huai-Hai region, the comprehensive yield, quality, fertilization and environmental protection are the best; the ratio of different types of organic fertilizer to chemical fertilizer is different. This established a quantitative index and time series of partial replacement of chemical fertilizers for winter wheat and summer maize planting systems in the Huang-Huai-Hai region.
In response to the reporter of Science and Technology Daily, "How to solve the contradiction between the current and the rural labor shortage", Zhao Bingqiang pointed out that the root of this contradiction lies in the separation of agricultural farming and aquaculture in China. It is necessary to learn from the integration experience of family farms in Europe and the United States, strengthen the top-level design, focus on institutional innovation, and use organic fertilizers “not necessarily labor-intensiveâ€. The national goal of “zero growth in fertilizer use by 2020†is expected to be achieved.
This article URL: How to apply fertilizer? 30 years of test data tells you
Hand & Foot Care,Foot Care,Feet Care,Total Foot Care
Guangzhou Lingxue Cosmetics Co., Ltd , https://www.lxgj188.com