夏玉米是我省秋粮的主要作物,产量也居秋粮之首。为了探讨单产1200斤的夏玉米生育特点和栽培技术指标化及管理措施的具体化,充分发挥玉米这一高产作物的增产优势,实现我省在玉米生产上“稳定面积,提高单产,增加总产”这一指导方针,自1983年起,我们在以往试验的基础上,进行了较系统的研究工作,连续三年单产都超过1200 Summer corn is the main crop of autumn grain in our province, the output also ranks first in autumn grain. In order to explore the characteristics of 1200 kg yield of summer maize and its cultivation techniques and indicators of standardization of management practices, give full play to the yield advantage of maize, a high-yield crops, to achieve the province in corn production, “a stable area, increase yields and increase total output ”This guideline, since 1983, we conducted a systematic study based on previous experiments, with a yield of more than 1,200 for three consecutive years