为了探讨中单2号玉米杂交种制种高产规律,使制种工作有一个较大的突破,开创推广玉米杂交种的新局面,1982年我们和西沟大队第一生产队的18户种子户在29.4亩川旱地上开展了制种高产栽培技术试验研究。把高产栽培的基本功下在抗涝保全苗上,把增产的着眼点放在群体密度上;把田间管理的重点放在抗旱保丰收上;严把“五关”,在长期低温和春涝夏旱的严重自然灾害威胁下,夺得了平均亩产杂交种籽558.4斤、父本89斤的好收成,创造了我 In order to explore the Zhongbian 2 maize hybrid seed production of high yield law, make a major breakthrough in seed production work, and create a new situation to promote corn hybrids, 1982, we and the first production team of Xigou Brigade 18 seed households In 29.4 mu of dry land in Sichuan to carry out high-yielding cultivation techniques of experimental research. Put the basic skills of high-yield cultivation in the flood protection seedlings, the focus of increased production on the population density; the focus of field management on drought harvest abundance; strict “five off” in the long-term low temperature and spring flood summer Under the threat of drought and severe natural disasters, it won 558.4 kg of hybrid seeds per hectare and produced 89 hectares of good harvests