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1982年我队三十亩丹玉六号玉米制种田,由于受前茬麦子的荫蔽,共生近一个月,玉米前期长势差,6月中旬开沟条施,碳铵50斤/亩,长势稍好转,但不够健壮。我们根据叶龄和父本抽雄散粉以及母本吐丝情况,采用2∶6、2∶8(2行父本,6行或8行母本)组合,于7月2～9日,对三十亩玉米田普遍进行了二次人工辅助授粉,取得良好效果。母本实收总产9608斤,平均亩产320.28斤。
In 1982 my team thirty acres of Dan Yu 6 corn farming, due to the shadow of the former wheat, the coexistence of nearly a month, early corn growth is poor, in mid-June ditch facilities, ammonium bicarbonate 50 kg / mu, growing slightly Better, but not strong enough. According to the leaf age and male parent powder loose powder as well as the female parent silking situation, using 2:6, 2: 8 (2 rows of male parent, 6 or 8 rows of female parent) combinations, on July 2 ~ 9, Ten acres of corn fields generally carried out by artificial secondary pollination, and achieved good results. The mother received the total output of 9608 pounds, an average of 320.28 kg per mu.