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1983年我省玉米杂交种制种获得丰收。全省制种面积达39566亩,产杂交一代种子1215万多斤,平均单产307斤,总产比1982年增加一倍多,单产提高90多斤。其中,中单2号玉米制种面积达32400亩,产杂交一代种子899万多斤,平均单产277.8斤。今年全省计划中单2号玉米在适种地区发展到120万亩左右,需种720多万斤。这样加上库存尚余数百万斤,从而全省第一次实现中单2号玉米杂交种子自给有余,并可大批量调出。推广玉米杂交种是玉米增产的重要措施。七十年代中期,全省杂交种面积达到玉米总播面积的
1983 maize hybrid seed production in our province bumper harvest. The province’s seed production area of 39566 acres, producing 12.15 million kilos of hybrid generation of seeds, the average yield 307 pounds, total output more than doubled in 1982, yield increased 90 kilos. Among them, Zhongdan No. 2 corn seedling area reached 32,400 mu, producing 8.99 million kilos of hybrid generation of seeds, the average yield of 277.8 pounds. This year the province plans to single No. 2 corn in suitable areas to develop to 120 million mu, need kind of more than 720 kilograms. This coupled with the stock remaining millions of jins, so the province for the first time in the No. 2 corn hybrid seeds self-sufficiency, and can be transferred in large quantities. Popularizing corn hybrids is an important measure to increase yield of corn. The mid-seventies, the province’s hybrid corn area reached the total sowing area