Another year when peanuts were harvested, Shao Ninghan in Funing County of Hebei Province was overjoyed. This year his family had more peanuts, no effect, full fruit, and high oil content. It was more than 30% more than in previous years. The reason for the income increase is a secret of Shao Laohan. He used a new kind of fertilizer: Peanut rhizobia fertiliser. Rhizobium is a kind of biological inoculum produced from the root strains of leguminous plants and corresponding to this crop. The air contains 80% of nitrogen, but generally plants cannot be used directly. Only peanuts, soybeans, and other legumes can transform the molecular nitrogen in the air into the ammonia nitrogen available to plants through symbiotic nitrogen fixation with the rhizobia. . Rhizobium effectively nodulate the roots of plants, making it possible to use nitrogen as a micro nitrogen fertilizer plant for continuous supply of nitrogen to peanut plants. Rhizobium significantly reduces the use of chemical nitrogen fertilizers and saves costs; at the same time, it increases production. Shao old man calculated such an account: in previous years, an acre of peanuts had to use about 150 yuan of chemical fertilizer, and after using rhizobia, it reduced the use of chemical fertilizer by 70%, which saved 105 yuan, plus an acre of input. 20 yuan rhizobia, the fertilizer cost savings of 85 yuan; while the average increase in peanut production by 30% to 40%, according to the output of 400 pounds of peanuts per acre, a pound of peanuts per kilogram, per acre at least 120 yuan; so count, one Mu peanuts earn 205 yuan more. One acre of land, ten acres, 100 acres? The benefits of rhizobia are not only here, it is also an environmentally friendly green fertilizer. Artificially applied chemical nitrogenous fertilizers loss rate is often greater than 50%, where harmful residues pollute the environment and reduce soil fertility; and the use of chemical nitrogen fertilizer peanuts contain nitrite, making it difficult for China's legumes to successfully enter the international market. The emergence of rhizobia has solved these problems. Compared with traditional fertilizers, it is both economical and environmentally friendly, which not only improves the yield but also improves the quality of crops. Although technology is good, it is not easy to promote it. In fact, this technology is not new. China had successfully developed it as early as in the 1950s, but it has always been "raising people who are not well-versed in knowledge" and has never come out of the laboratory. According to reports, the technical content of large-scale production of rhizobial fungi is too high to control, and many people just use it as a tool for reporting scientific and technological achievements and winning, but have not thought of applying it to actual production. Finally, some people dared to eat the first crab. Qinhuangdao female entrepreneur Xu Zhiwen established Leading Science and Technology Development Co., Ltd., dedicated to the application of rhizobia technology in agriculture, but people's cautious attitude in facing new things still makes Rhizobium technology Not far away, and it is difficult to meet the needs of one million mu of soybean, 61 million mu of peanuts, and 30 million mu of legumes. At present, the area of ​​rhizobia in China's leguminous crops is still less than 1%, which is a huge difference compared with the utilization rate of 70% and 75% in Western countries. There is also a huge market. The state has just seen this point and stipulated that the rhizobia practical biotechnology should be one of the Spark Programs that will be promoted during the 10th Five-Year Plan period. Good flowers need everyone to protect and promote rhizobial bacteria technology not only because of its economic benefits, but also because of its social benefits. From extensive development to intensive development, from blind development to sustainable development, the promotion and application of ecological agriculture, green agriculture, and science and technology are of utmost importance.