In the "National rapeseed full-time mechanized high-efficiency production mode demonstration site meeting", the spray application device was installed on the harvester, and the rapeseed was taken out of the pocket, and the straw was smashed and returned to the field, and a composite microbial agent was sprayed. In order to accelerate the decomposition of sclerotia on straw and straw, the double effect of both fertilizing soil and preventing the spread of sclerotium disease is achieved, and the fusion of agronomic agricultural machinery is realized. As one of the core technologies of “Mechanized and efficient production mode of rapeseedâ€, this technology has been highly praised by delegates in the fields of administration, scientific research, promotion and production. Steel Structure Roll Forming Line Roll Formed Steel,Steel Roll Forming Machine,Customized Steel Structure Roll Forming Machine,Steel Structure Roll Forming Machine Xinxiang Tianfeng Machinery Manufacture Co., Ltd. , https://www.frollforming.de
Compound microbial agent helps rapeseed straw return to field
How to deal with the large amount of straw produced during the harvest of 110 million mu of rapeseed in the country has always been a problem in the local government desk. Traditionally, farmers in many areas have burned in the fields in order to catch up with the agricultural land. This aspect affects the atmospheric environment and public safety. On the other hand, it wastes a lot of organic resources, causing the soil fertility to continue to decline. According to experts, rapeseed straw is a very good green manure. Straw returning can increase soil organic matter and available nutrient content, fertilize soil fertility, and alleviate the contradiction between nitrogen, phosphorus, potassium fertilizer and trace element nutrient imbalance. However, the direct return of rapeseed straw to the field has brought two outstanding problems to the production of post-harvest crops. First, how quickly rapeseed stalks mature, which does not affect the growth of post-cultivated rice seedlings, and can quickly provide nutrient requirements for post-cultivation rice seedlings; How to degrade the sclerotia formed in rape straw after invading rapeseed, and reduce the harm of soil-borne diseases (canola sclerotia) to rape in the next season. After years of research, the Institute of Oil Crops of the Chinese Academy of Agricultural Sciences has specially developed a compound microbial agent for accelerating the decomposition of rapeseed straw and decomposing the sclerotia of rapeseed. The composite microbial agent consists of two special functional microorganisms selected from more than ten kinds of microbial strains isolated from the rhizosphere soil of rapeseed. They are high-efficiency decomposing rapeseed straw and the high-efficiency decomposing rape sclerotia. Aspergillus aculeatum has been widely promoted in rapeseed production, and its application effect is obvious: the decomposing rate of rapeseed straw is increased by 23.9%; the decomposing rate of sclerotia is increased by 38.1%; the yield of post-salted rice is increased by 3%, and the sclerotia of rapeseed is lower in the next season. The disease index fell by 16.8 and increased by 5.0%. In addition, soil physical and chemical properties and biological properties have been improved to varying degrees. According to Hu Xiaojia, an associate researcher at the Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, 15 grams of the compound microbial inoculum is applied per mu, and the input cost per mu is increased by 5 yuan, and the income is increased by more than 35 yuan. The comprehensive benefits are obvious.
Liu Shengyi, a researcher at the Institute of Oil Research, Chinese Academy of Agricultural Sciences, said: If 150 kg of rapeseed is produced per mu, roots, straws, flowers and shells are all returned to the field, and each mu can provide 8.6 kg of pure nitrogen, 2.72 kg of phosphorus, and 11.4 kg of potassium. Straw returning can also resist drought and protect the soil, improve soil physical and chemical properties, optimize the farmland ecological environment, and achieve the purpose of increasing soil yield increasing potential.
“The whole process of mechanized and efficient production of rapeseed†can be accepted by farmers in the main rape producing areas of the Yangtze River Valley and even in the whole country. The key lies in propaganda and promotion. In this regard, Chen Mengshan, secretary of the Party Committee of the Chinese Academy of Agricultural Sciences, said at the demonstration meeting that the Yangtze River Valley rapeseed belt is the world's largest and most promising winter rapeseed production belt, involving 12 key provinces and cities. To promote the research on rapeseed yield increase and efficiency model, it is necessary to further integrate existing achievements and technologies, and the leading research institutes within the United Nations, and close contact with local agricultural authorities, improve the layout of the base, and gradually expand the scope of experimental demonstration radiation.
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