Probe into the causes of High yield of Maize in Northeast China this year

A few days ago, the Ministry of Agriculture organized experts to test the yield of corn in Heilongjiang Province. Zhaodong City Wuliming Town Dongsheng Village villager Luo Zhongge created a high yield of 1242.57 kilograms per mu.

Li Shaokun, a researcher at the Chinese Academy of Agricultural Sciences and a post expert in the national corn industrial technology system, told reporters that according to the results of the expert group's on-the-spot yield measurement, corn in three provinces and one region in Northeast China had another bumper harvest this year. Among them, the yield per mu in the first accumulated temperate zone of Songnen Plain in Heilongjiang Province was more than 1000 kg, with a maximum of 1242.57 kg per mu, and the yield per mu in the second accumulated temperate zone in Songnen Plain of Heilongjiang Province reached more than 930kg. The yield per mu in the semi-arid area of the western part of Northeast China is more than 1000 kg, with a maximum of 1203.95 kg.

Kui Zhongge told reporters excitedly that the corn he has planted this year can reach 1242.57 kilograms per mu, and thanks to the "double increase of 200" corn science and technology campaign in Northeast China organized and implemented by the Science, Technology and Education Department of the Ministry of Agriculture, it is precisely because of good varieties, good technology, and meticulous guidance from experts that I have achieved high yield this year.

Yin Cai, deputy director of the Zhaodong Municipal Bureau of Agriculture, also calculated an account for the reporter. The fields implementing the "double increase of 200" only added four technical links: deep loosening, spraying foliar fertilizer, artificial topdressing, and unified prevention and control of corn borer leaf spot. The investment per mu is 586.5 yuan, which is 150 yuan more than that of ordinary farmland, and the average yield per mu is 1226 kg, which is 250kg higher than that of the best field in ordinary farmland. Among them, the technology of deep loosening and large ridges can increase the land utilization rate by 20%, and increase the number of seedlings per mu by 1000 yuan, which can save cost and increase income by 400 yuan per mu.

According to Li Shaokun, the scientific and technological action of "double increase 200" of corn in Northeast China is guided by the goal of "increasing yield by 200 jin per mu, saving cost and increasing efficiency by 200 yuan per mu", relying on the national corn industrial technology system, grass-roots agrotechnical extension system and farmers' training system, and grasping the construction of high-yield demonstration areas and the "corn king" competition as the starting point. Closely unite the major corn producing counties, agricultural administrators, scientific and technological experts, technical extension personnel and farmers. At the same time, according to the hydrothermal conditions of different ecological types, the regional distribution of maize varieties in different accumulated temperate zones was determined, and the farmers were guided to adopt the leading varieties with high and stable yield, supplemented by the deep excavation of budding varieties, so as to improve the yield-increasing potential of improved varieties. Large area popularization and application of high-yield and high-efficiency integrated techniques such as mechanized deep loosening soil preparation, precision sowing, deep fertilizer application, straw returning, drip irrigation under plastic film, dense planting with narrow rows and wide ridges, double-row plastic film mulching on large ridges, integrated control of diseases and insect pests, etc. large machinery was used to complete deep soil preparation, precision sowing, precision fertilization and post-sowing suppression at one time, which significantly improved the quality of seedlings. Timely promote the whole process mechanization in the key links of corn production and further tap the potential of corn production. In view of the technical problems existing in maize production in different regions, technical forces were organized to provide planned, hierarchical, batch and time-specific technical training and guidance services to agrotechnical personnel, scientific and technological demonstration households and farmers, so as to promote the organic combination of leading varieties and main promotion technology, agricultural machinery and agronomy, experimental demonstration and large-scale popularization, so as to improve the arrival rate of high yield and high efficiency technology of maize.

The responsible person of the Science, Technology and Education Department of the Ministry of Agriculture told the reporter that the Ministry of Agriculture carried out the "double increase of 200" science and technology campaign in three provinces, one autonomous region and one bureau in Northeast China in view of the increasing international competitive pressure on China's corn market. guide and promote the main corn producing areas in Northeast China to take the road of equal emphasis on high yield and high efficiency, through improving the arrival rate of improved varieties and improved methods, to achieve stable and high yield, meet the rigid growth of domestic corn consumption, and achieve cost saving and efficiency efficiency. Reduce production costs, improve planting efficiency, protect farmers' enthusiasm for growing grain, and lay a solid foundation for improving the market competitiveness of northeast corn.

Through the interview, the reporter deeply felt that the high yield of corn in Northeast China this year proved that the "double increase 200" science and technology action is worthy of a typical model for increasing production and income of agricultural science and technology, and its good mechanism, good practices and good experience are worth using for reference and popularization. especially since the implementation of the action in 2012, it has been guided by target results and performance evaluation. The single "pearls" of major corn producing counties, agricultural administrators, scientific and technological experts, technical extension personnel and farmers were strung into necklaces, giving full play to the resultant effect. The material reward and honor battle of the "King of Corn" competition has aroused the enthusiasm of farmers to grow grain and local governments to grasp grain; that is, such a push and use has enabled improved varieties, good methods, and high-yield and high-efficiency integrated technologies to take root on the black land of the Northeast. Flowers and fruit.