Original title: Food and kitchen waste turned into Baolu fertilizer to improve soil quality The province's raw soil curing technology made a breakthrough
A few days ago, the Provincial Academy of Agricultural Sciences held a technical exchange and on-site observation meeting. According to reporters at the demonstration base in the Lanzhou New District, 400 acres of arrowhead peas planted on the improved soil are gratifying. According to the researchers, the survival rate was over 92%, and the average plant height was 110 cm, while the survival rate in the control group was only about 40%, and the average plant height was 34 cm. After testing, the soil pH value decreased by 0.41 after using the raw soil curing agent, and the organic matter content increased from 0.65% to 0.96%, and the comprehensive improvement effect was significant. This successful demonstration marks a breakthrough in our province's raw maturing technology.
According to reports, due to the large area of ​​raw soil in China, especially the outstanding problems of high soil pH, low organic matter, poor water retention, etc., in the Northwest Plateau, the Soil and Fertilizer and Water-saving Agriculture Research Institute of Shaanxi Academy of Agricultural Sciences unites with the water and fertilizer integration of Xindali, Lanzhou. Four companies, including Service Co., Ltd., jointly initiated a research project on raw soil curing technology. According to researcher Che Zongxian, director of the Institute of Soil, Fertilizer and Water-saving Agriculture at the Provincial Academy of Agricultural Sciences, kitchen waste is rich in organic matter, microorganisms, and strong acidity, and is an excellent raw material for improving raw soil. The research team used the acidified slurry produced during the recycling process of food wastes as raw material, and developed a new type of acidic raw soil curing agent using scientific agronomic formula and technology. This raw soil curing agent is rich in probiotics, vitamins and trace elements, but also has a large amount of animal-derived organic matter and strong acidity, and has a ripening and improving effect on raw soil. Legume green manure acts as a cheap, environmentally friendly fertilizer with nitrogen fixation, carbon fixation, etc. The combination of raw soil curing agent and green manure is a perfect match for improving raw soil. After years of research, an improved raw soil technology model was developed that matched the "raw soil curing agent + micro spray irrigation + green manure". By adopting this integrated technology, through one-year improvement, raw soil can completely grow food crops, increase soil organic matter content by 21.4%, water-stable aggregates by nearly 20%, beneficial microbial population by 2-3 times, and at the same time, can reduce chemical fertilizer usage. 50%. It has significant effects on increasing soil organic matter content, eliminating soil compaction, increasing the resilience of crops, preventing pests and diseases, and reducing the use of chemical fertilizers and pesticides.
This integrated technology not only solves the problem of restaurant kitchen waste exiting, but also solves the difficulty of raw soil maturation. At the same time, it finds space for the cultivation of green manure crops, realizes the green development of agriculture, and has the control of regreening and desertification in the new land and mining area. In the urban afforestation, rapid, low-cost improvement results are achieved, and the application prospects are extensive.
The researcher of Cui Zeng-kuan, the head of the provincial arable land quality construction management station, said: “In recent years, our province has vigorously promoted the 'balance of arable land'. Every year, nearly 100,000 mu of raw soil needs improvement. The popularization and application of the new raw soil curing technology will improve me. The quality of cultivated land in the province and the improvement of the quality of agricultural products have played an important role.†(Reporter Qin Na)
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