论文部分内容阅读
八十年代中期以来,在川西平原和川西北丘陵,以小麦高产高效简化栽培为目标,从耕作、播种、施肥等主要方面研究了其简化技术、产量效应、增产原因和经济效益。在单项技术试验研究的基础上,采用少免耕、精量机点播、简化高效施肥三项关键技术,结合选用优质高产新品种、化学除草和机械化收获等措施,形成了小麦高产简化栽培技术体系,使产量、经济效益和劳动生产率均有提高,大面积示范推广取得了显著社会、经济效益。因此,研究和推广主要农作物的高产高效简化栽培技术,是提高种植业经济效益、发展高产优质高效农业的重要途径之一。
Since the mid-1980s, with the goal of high-yield, high-efficiency and simplified cultivation of wheat in the western Sichuan plain and the northwestern Sichuan Basin, the simplified techniques, yield effects, yield-increasing causes and economic benefits were studied from the aspects of farming, planting and fertilization. On the basis of single-technology experiment and research, three key technologies of no-till, high-precision on-demand and simple and efficient fertilization were adopted, combined with the selection of high quality and high yield new varieties, chemical weeding and mechanized harvesting, , So that production, economic efficiency and labor productivity have increased, large-scale demonstration and promotion made significant social and economic benefits. Therefore, researching and popularizing high-yield, high-efficiency and simplified cultivation techniques for main crops is one of the important ways to improve the economic benefits of planting and to develop high-yield, high-quality and high-efficiency agriculture.