论文部分内容阅读
本文根据1993～1994年的小区试验和潍坊市麦套紧凑型夏玉米大面积单产8250～1125kg／hm2的高产实践，总结出了麦田套种紧凑型夏玉米应掌握的五项关键技术．即合理增株，扩大群体；苗期早管，促进幼苗均衡生长；增加肥料投入，合理运用肥水；防虫治虫，为玉米创造良好的生育环境；适当晚收，提高单位面积产量等．试验与生产实践表明，运用上述五项关键技术措施，可使紧凑型夏玉米增产25．38％～32．57％．
Based on the plots from 1993 to 1994 and the high-yielding practices of 8250 ~ 1125kg / hm2 in a large area of wheat compact summer maize in Weifang, this paper summarized five key technologies that should be grasped in compact summer maize intercropping. That is, rationally increase plants and expand the population; early seedling stage to promote the balanced growth of seedlings; increase fertilizer inputs, the rational use of fertilizer and water; pest control pests, to create a good maternal fertility environment; appropriate late closing, increase yield per unit area. Tests and production practices show that the use of the above five key technical measures can make compact summer maize yield 25.38% ~ 32.57%.