摘要
河套灌区是我国优质春小麦生产基地,但由于春小麦产量低,收获后耕地闲置期长,光、热等资源利用不足等,春小麦播种面积逐年缩小。如何稳定春小麦播种面积,提高春小麦后茬复种指数,成为河套灌区农业生产中亟需解决的问题。结合河套灌区的耕作制度,简述了不同复种模式对光、热、水、肥等的利用情况和春小麦后茬复种中存在的问题、限制因素,提出提高春小麦后茬复种指数的关键措施是开展规模化经营、提高农业机械化水平、合理复种、选育专用品种、优化复种栽培技术体系等。
Hetao Irrigation District was a high quality spring wheat production base in northern China. Due to the lower yields of spring wheat,and after spring wheat harvest,the cultivated land had a long idle period. The light,heat and other natural resource couldn＇t be sufficiently utilized,spring wheat sown area reduced year by year. How to stabilize spring wheat sown area,and improve the multiple cropping indexes with spring wheat as a preceding crop had become an urgent problem in Hetao irrigation district. Combining farming system in Hetao irrigation district,the light,heat,water,fertilizer and other natural resources utilization in different multiple cropping patterns were briefly described. The problems and constraints in multiple cropping patterns with spring wheat as a preceding crop were brought out,and the key to improve the multiple cropping index that were to carry out large-scale operations,improve the level of agricultural mechanization,make reasonable multiple cropping,breed special varieties,optimize cultivation techniques to multiple cropping systems and so on were put forward.
出处
《安徽农业科学》
CAS
2015年第6期53-56,60,共5页
Journal of Anhui Agricultural Sciences
基金
国家"十二五"科技支撑项目:内蒙古河套灌区粮油作物节水技术集成与示范(2011BAD29B03)
黄土丘陵沟壑区水土保持与高效农业关键技术集成与示范(2011BAD31B05)
关键词
河套灌区
春小麦
光热资源
复种模式
解决方法
Hetao irrigation district
Spring wheat
Light and heat resources
Multiple cropping patterns
Solution methods
