Rotation Technology of Chinese Academy of Agricultural Sciences promotes the Green Development of Grain and Oil

On May 29, the Chinese Academy of Agricultural Sciences organized the "rape-Maize Annual Green High-yield and High-efficiency Technology Model demonstration site meeting" in Xiangyang City, Hubei Province, which demonstrated the integrated effectiveness of eight key technologies related to rape-corn rotation on the spot, and discussed how to promote the next stage of research and demonstration work. Chen Mengshan, secretary of the party leading group of the Chinese Academy of Agricultural Sciences, and Wu Kongming, vice president, attended the meeting.

It is estimated that by adopting the "rape-corn annual green high yield and high efficiency technology model", corn was planted after rape harvest in June last year, and the yield per mu of corn was increased by about 10% compared with wheat rotation, with a net benefit of 528 yuan per mu. This year, the yield of rape per mu in the core demonstration area increased by 19.2% compared with the traditional high yield level, with a net income of 950 yuan per mu. The annual average benefit of rape-corn rotation in the core demonstration area reached 1478 yuan per mu, realizing the goal of "abundant grain and oil, green and high efficiency".

Chen Mengshan pointed out at the seminar that the "rape-corn annual green high-yield and high-efficiency technology model" created by superior scientific research institutions within the United Nations led by the Oil Institute has a very positive significance for ensuring China's food security and sustained and effective supply of edible oil, further increasing farmers' income, and maintaining agro-ecological security. Chen Mengshan wants to ask that in the next step, the green technology integration model for increasing production and efficiency should adhere to the industrial demand orientation, closely serve the Ministry of Agriculture's goal of "one control, two reduction and three basics", and improve the technology integration mechanism and demonstration and extension mechanism. we should further strengthen organizational leadership, form a technology model that is available, learnable and accessible to the ground, and speed up the popularization and application of technology models and the demonstration of different ecological types. To make greater contributions to the safety of grain and oil in China.

Wang Hanzhong, general coordinator of this technology, director of the Oil Institute of the Chinese Academy of Agricultural Sciences, and chief scientist of the national rapeseed industry technology system, said that rape and corn are the largest oil crops and food crops in China and play an important role in the national food security strategy. Rape is mainly produced in winter fallow fields and does not compete for land with rice, corn and other food crops. The rotation of rape and grain crops can significantly increase soil organic matter, release phosphorus elements in soil, fumigate and kill soil-borne pathogenic microorganisms, reduce the harm of diseases and insect pests, and promote the green development of both grain and oil. In recent years, rapeseed-maize rotation has developed rapidly in the Yangtze River basin, but the production efficiency and benefit are low due to few excellent varieties, low level of mechanization, weak disaster resistance and lack of integrated technical support. According to the integrated mode of green technology for increasing production and efficiency of the Ministry of Agriculture and the arrangement and deployment of the scientific and technological innovation project of the Chinese Academy of Agricultural Sciences, the Oil Institute has established a demonstration base with a total area of 5000 mu and a core demonstration area of 1920 mu in Xiangbei Farm in Xiangyang, Hubei Province, with a total area of 5000 mu, agricultural mechanization institute, plant protection institute, fund planning institute, Huazhong Agricultural University, Hunan Agricultural University and so on. Integrated advanced technologies such as the integration of grain and oil and abundant rotation technology, new high-oil mechanized rape varieties, new high-yield mechanized maize varieties, high-yield and high-efficiency production technology of rape and corn, fertilizer and pesticide reduction and efficient utilization and straw (sclerotia) rapid decomposition and other advanced technologies, the annual green high-yield and high-efficiency technology model of rape-corn rotation was established.