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建湖县是江苏省杂交水稻制种的主要基地。近二年来,全县推广了多项综合技术措施,尤其是对九二○喷施技术的改进,对提高制种产量收到了良好的效果。1985～1986年我县在南京农业大学科研人员的指导下,改进了喷施方法,将九二○兑低量水喷施。具体做法是,用上海前进微型电机厂生产的永旋牌手持式电动超低量喷雾器,每次用九二○ 4～5克,兑水1～1.5公斤,于制种田母本开始抽穗时均匀喷雾,坚持当天割叶当天喷,4
Jianhu County is the main base of hybrid rice seed production in Jiangsu Province. In the past two years, the county has promoted a number of comprehensive technical measures, especially the improvement of the 920 spraying technology and received good results in improving seed production. From 1985 to 1986, under the guidance of researchers from Nanjing Agricultural University, our county improved the method of spraying and sprayed low-volume water against 9/20. The specific approach is to use the Shanghai forward micro-motor factory Yong licensing hand-held electric ultra-low volume sprayer, each with 9420 grams, watered 1 to 1.5 kg, in the system of farming female parent heading uniform Spray, stick to the same day cut the leaves spray, 4