【摘要】 我国和美国玉米生产水平存在较大差距。本文从品种应用、土壤肥力、施肥水平与技术、病虫害防治、生产机械化水平等因素阐述了我国与美国玉米生产的差距。针对当前玉米生产现状,提出了缩小差距的几点建议。更多还原

【Abstract】 American and China are both great power of maize production in the world,but there are obvious differences in the level of maize production between them.The differences were elaborated in terms of the variety application,soil fertility,the level and technique of fertilization,control of plant diseases and insect pests,the mechanization degree and comprehensive quality of peasants and so on,at same time,it put forward the suggestions to narrow the gap in view of existing situation of maize production in China.更多还原