摘要
我国未来粮食安全主要依靠提高粮食单位面积产量,灌溉面积、良种和化肥等传统的增产贡献因子的作用却越来越有限。采取要素集成以实现粮食超高将成为解决粮食问题的一个基本途径。本文以低产田、中产田和高产田为例,分别从产量对总产的贡献及实施难度等方面,深入分析发展超高产的必要性,并初步提出发展超高产的技术对策。
It is key approach of maintaining food security to improve per unit grain production.Now,it has less affects to improve per unit grain production through enlarging irrigation areas,utilizing better seeds and more chemical fertilizers, so higheryield method with comprehensive farming techniques became the best choice.In this paper,the necessary of higheryield were discussed, through the yield,yield proportion in china and its feasibility among lowyield field,middle yield field and highyield field.And then, the essential strategies and main techniques of higheryield were discussed.
出处
《农业现代化研究》
CSCD
北大核心
2003年第3期161-165,共5页
Research of Agricultural Modernization
