1.耢压清茬保墒保苗在上年秋天深翻耢细士壤的基础上,当年春天将玉米制种田普遍顶凌压一次,将坷垃压碎,反浆后又一次使土壤疏松,起到切断毛细管防止水份蒸发的作用,然后再进行一次清茬工作,用人工将田间的石头,根茬和残膜全部搂净和清理出去,使土壤即松软又匀细,有利保全苗,因亲本种子多数表现芽软,拱土力差,所以,播前必须精细整地,苗情才会好。 2.科学施肥巧施微肥在万亩制种田中,农家肥每苗达万斤,采取先倒后运,干肥加水的方法,先倒既开始化冻时将肥再翻倒一次,使其粉碎砸细,但不急于往地里运,在播前1～2天运到地里,防止因早运、分散到地里,水分蒸发而影响 1. Pressure stubble soil moisture seedlings seedlings in the fall of last year on the basis of deep sowing fine soil, the spring of that year, corn farming top pressure generally, the Ke crushed crushed, anti-pulp once again to make the soil loose, play Cut off the capillary tube to prevent the role of water evaporation, and then conduct a stubble work, with artificial stone, stubble and residual film all hug net and clean out, so that the soil is soft and uniform, favorable preservation seedlings, due to the parent Most of the performance of seed bud soft, arch soil strength is poor, so before sowing must be fine preparation, Miaoqing will be good. 2. Scientific fertilization Qiaofei fertilizer in the mu farming system, farmyard manure per kilogram, take the first move backwards, dry fertilizer and water method, the first to start both when the fertilizer will be turned over and thawed once, to make it Crushed smashed fine, but not in a hurry to move in the ground, transported to the ground 1 to 2 days before sowing, to prevent due to early transport, dispersed to the ground, the impact of water evaporation