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我国玉米产业发展的国家需求是增产粮食,关键是提高单位面积产量,特别是提高单产的增长速度。实现这一目标亟需对玉米生产的耕作制度进行改革,主要是增加种植密度,东华北地区深松改土,黄淮海地区免耕直播和适当晚收获。玉米耕作制度的改革离不开机械化生产技术,同时也对玉米育种、栽培、植保等技术提出了发展需求。
The national demand for the development of the corn industry in our country is to increase the grain output. The key is to increase the yield per unit area, in particular to increase the rate of increase in yield. To achieve this goal, it is urgent to reform the farming system of corn production, mainly to increase planting density, deep soil improvement in eastern North China, no-tillage direct seeding in Huang-Huai-Hai region and appropriate evening harvest. The reform of corn farming system is inseparable from the mechanization of production technology, but also on corn breeding, cultivation, plant protection and other technologies put forward the development needs.