摘要
在吉林省中、西、东三个玉米种植区域最优生产条件下,采用最佳技术措施,创建出了产量13500～15000kg/hm^2超高产田.研究结果表明,良好的土壤物理结构是高产土壤的主要特征,发达的根系是获得高产稳产的基础.创建超高产田,首先要建造高产稳产土壤,选用产量潜力大的单交种,科学施肥.超高产田经济效益好,光能利用率、水分利用率都高于一般生产田.
Abstrict 13500~15000kg/hm2 maize yield in super-high fields with the best techniques had been got in middle,west and east parts of Jilin Province. The result indicated that better physical constitution is a basic feature of the high-stable soil, luxuriant roots is the foundation for high-stable yields. It is necessary to build the high-stable soil, the great potentialities single cross,and rationalige fertiliger application for the super-high field. Super-high yield have higher profit, higher light and water use efficiency.
出处
《中国农业科技导报》
CAS
CSCD
2000年第3期33-37,共5页
Journal of Agricultural Science and Technology
基金
本研究为"九五"国家科技攻关项目
