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我们公社的杂交水稻制种,1977年曾创百亩连片亩产211.1斤,达到全国百亩制种高产科研项目验收的规定指标。尔后,不断总结经验,1979年全面推广用三期父本制种的新办法,配合其他高产技术措施,使制种产量又有新的突破。全社杂交中稻制种面积246.1亩,组合为四优2号、威优6号、汕优6
In our commune, the hybrid rice seed was planted in 1977 with a yield of 211.1 mu per mu of contiguous mu produce, reaching the stipulated index for the acceptance of high-yielding scientific research projects of seed production in the whole country. Afterwards, he continued to sum up his experience. In 1979, the new method of three-stage paternity cultivation was fully promoted in conjunction with other high-yielding technical measures to make another breakthrough in seed production. The whole community hybrid rice acreage area of 246.1 acres, the combination of Siyou 2, Weiyou 6, Shanyou 6