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一、两促一控法。主要适用于高肥水、大群体(冬前亩茎数80—100万)以分蘖成穗为主,单产400～500公斤以上的高产麦田,对部分群体过大的中产田也适用,其作法是:施足底肥,蓄足底墒,适时播种,培育冬前壮苗,浇好冻水,返青时中耕,在能保证适宜成穗数的群体条件下,蹲苗40～50天,至拔节和挑旗再追肥浇水,还要适时浇好抽穗和灌浆水,即肥水促进期为冬前拔节(春生5叶左右)和挑旗,肥水控制期在拔节前,追肥比例为:冬前25～30％,拔节期55～60％,挑旗期15％。 二、三促两控法。此法主要适用于茎、蘖成穗并重,中肥水,群体合理(冬前亩茎数55～75万)。
One, two to promote a control law. Mainly applied to high-fertility, large groups (winter before the number of acres of stalks 80-100 million) to tiller panicles, yield 400 to 500 kilograms or more of high-yield wheat fields, part of the population is too large fields also apply, the practice is : Shi enough base fertilizer, soil moisture at the end of planting, timely sowing, cultivating strong seedlings before winter, pouring cold water, back green cultivator, to ensure the appropriate number of spike population groups, squat seedlings 40 to 50 days, to join and flag Then topdressing watering, but also timely pour heading and grouting water, that is, the promotion of fertilizer for the winter before the jointing (about 5 leaves spring) and flag, fertilizer control period before jointing, top dressing ratio: before winter 25 ~ 30 %, Jointing 55 ~ 60%, 15% of the flag period. Two or three promote two control law. This method is mainly applied to stems, tillers into ear weight, fertilizer, the group is reasonable (before winter acres of stalks 55 to 750,000).