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1984年我省新化县的杂交水稻秋季制种工作,在1983年单产290斤的基础上,又夺得了高产。全县秋制面积3,880亩,平均亩产361.8斤,比1983年增产24.8%,成为我省杂交水稻秋季制种大面积高产县之一。他们的经验是在确保安全齐穗的前提下,主攻群体,增加有效穗,以提高结实率,在制种技术上实行五改: 一、前作全部为早熟品种。往年的前作除安排二九青等早热早稻品种
In 1984, Xinhua County, the province of hybrid rice autumn seed production work, in 1983 yield 290 pounds on the basis of, and won the high yield. The county area of 3,880 acres of autumn, the average yield of 361.8 kg, an increase of 24.8% over 1983, became the province of hybrid rice in autumn large-scale production of high-yielding counties. Their experience is to ensure that the safety of the full range of the premise, the main groups, increase the effective panicle to increase the rate of seed set, in the seed production technology to implement five changes: First, the pre-made all for the precocious varieties. In previous years, except for arranging 29th green and other early hot early rice varieties