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近年来,我县大力推广玉米单交种,促进了粮食显著增产。但由于制种产量较低,加大了成本,种子供应不足,因此,提高玉米单交制种产量是当前急需解决的一个问题。美原公社赵村大队1971-74年连续四年配制单交种,亩产都在400斤以上(包括父、母本,下同)。1973年105亩亩产420斤,其中刘家队配制陕单1号亩产670斤;1974年165亩亩产461斤,其中67亩陕单1号亩产500斤以上。他们的主要经验是,以党的基本路线为纲,狠抓路线教育,加强领导,专人负责,及时召开会议,定期检查评比,树立为革命种田、为革命制种的思想,开展以搞好制种,狠抓种子工作的科学实验活动。在制种技术方面抓了“五改”措施。
In recent years, my county vigorously promote corn single cross-species, and promote a significant increase in grain production. However, due to the lower seed production, increased costs and insufficient seed supply, raising the yield of single-cropping corn is an urgent problem to be solved urgently. Zhao village brigade of the United States commune 1971 - 74 years for the preparation of a single cross-breeding for four consecutive years, each of more than 400 pounds per mu (including the father, mother, the same below). 1973 mu mu yield 420 pounds, of which Liu team preparation Shaan Dan No. 1 per mu 670 pounds; 165 mu mu 461 pounds in 1974, of which 67 mu Shandan No. 1 mu 500 pounds or more. Their main experience is taking the basic line of the party as the key link, paying close attention to education on the line, strengthening leadership and taking charge of special personnel, holding meetings promptly, regularly checking appraisals and judgments, establishing the idea of farming for the revolution and seed for the revolution, Species, pay close attention to the work of scientific experiment of seed activities. In the seed production technology caught “five changes” measures.