【摘要】 分析了干旱半干旱地区不同耕作制度的生态及经济效益,连续3年耕作试验研究结果表明,在1年2熟地区实行机械化作业时,小麦少耕和玉米免耕是目前农业可持续发展的最佳机械化作业模式。该作业模式最大限度地利用了目前农村自然和经济资源,对干旱半干旱地区农业可持续发展具有重要意义。更多还原

【Abstract】 Results from three years’ experiments showed that the minimum tillage for winter wheat and zero tillage for maize,which could improve the sustainable development of agriculture and fully utilize the rural natural and economic sources,was the optimum mechanization tillage system in the arid and semi-arid regions with two crops a year planting pattern by comparing different tillage systems.更多还原