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1977年秋季,我社杂交水稻集中制种1,668亩。由于党委重视,专业队和社员共同努力,平均亩产达79斤,其中亩产100斤以上的630.9亩,亩产200斤以上的54亩,亩产300斤以上的19亩。有连片10.2亩南优2号制种田,平均亩产320.5斤,达到了高产水平。这十亩连片制种高产的技术经验是:一、适时播种,培育壮秧:杂交水稻秋季制种要取得高产,必须做到:一要避过寒露风,保证安全齐穗;二要正确安排父母本播种差期,使花期相遇。我们的第一期父本在6月14日播种,7月6日插秧,9月10日始穗;第二期父本6月24日播种,7月25日插秧,9月15日始穗。父母本播种差期40天,母本在7月24日播种,8月12日插秧,9月10日始穗。培育多蘖壮秧是夺取高产的关键性措施。在播种前下足基肥,每亩秧田施水粪20担,耙融耙平,撒施
In the autumn of 1977, 1,668 mu of hybrid rice was planted under CCS. As the party committee attaches great importance to the joint efforts of professional teams and members, the average yield of 79 pounds, of which 630.9 acres of mu produce more than 100 pounds, mu of more than 200 pounds of 54 mu, mu of more than 300 pounds of 19 acres. Contiguous 10.2 acres Nan You 2 system of farming, the average yield 320.5 kg, reached a high level of production. This 10 acres of contiguous seed production of high-yielding technical experience is: First, timely sowing, nurturing strong seedlings: Hybrid rice autumn seed production to achieve high yield, must be done: First, to avoid the cold dew, to ensure safe and complete; Second, correct Arrange the parents to sow the difference, so that the flowering meet. Our first parent was sown on June 14, transplanted on July 6 and started on September 10; the second was sown on June 24, transplanted on July 25 and started on September 15 . The parents planted the difference 40 days, the mother of the sown on July 24, August 12 planting, beginning September 10 spike. Cultivating more tillers and strong seedlings is the key measure to seize high yield. Under the sowing before the foot base fertilizer, water per mu seedling dung 20 Tam, Harrow rake flat, spreading