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实践证明,早施、重施蕾苔肥,是油菜增产的关键性技术措施.这是因为:1、油菜现蕾抽苔早、生长快.据1980、1981年观察,油菜早中熟品种在我县均是春节后即现蕾.如1981年2月5日春节,对几个油菜品种的观察结果是:直播早熟品种“甘油四号”2月6目至8日现蕾:早中熟品种“甘油五号”2月7日至10日现蕾;中熟品种“南阳41”2月9日至11日现蕾;
Practice has proved that as early as Shi, Shi Shi Shi, relying on the rape is a key technical measures to increase production.This is because: 1, rape bolting early rapaming, rapid growth.It was observed in 1980 and 1981, rape early maturing varieties in My county is budding after the Spring Festival .As of February 5, 1981 Spring Festival, the observation of several rapeseed varieties are: live early maturing varieties “Glycerol on the 4th ” February 6th to 8th budding: early Medium maturing varieties “Glycerol five ” February 7 to 10 budding; Medium varieties “Nanyang 41 ” February 9 to 11th budding;