一是看苗情施肥。在追肥過程中要根據不同的苗情分類追施。一般來說

，晚播苗、弱苗應重施肥，提高分蘖成穗率；壯苗則少施或不施返青肥。同時，對於冬季沒有形成壯苗或單株分蘖少，每畝總莖蘖數在40萬以下的麥田要早施、重施，一般每畝追施三元素硫基複合肥20gongjin。duiyuyuedongqigetifayulianghao，quntishizhongdezhuangmiaozeshaoshihuobushi，zhuyaokongzhibajiefeiyijianshaochunjiwuxiaofenniedezisheng
，fangzhixinglongyubi，youliyutongfengtouguang。duiquntiguodadewangchangmiao，chuzaifanqingqikongzhifeishuiwai
，haiyaocaiqushengeng、化學調控等措施，控製小麥根


、莖、葉的生長。

二是看土施肥，沙土地由於“發小苗不發老苗”。保bao肥fei保bao水shui力li差cha，應ying適shi當dang多duo施shi肥fei

，如ru果guo施shi肥fei不bu足zu
，對dui穗sui數shu和he粒li數shu的de多duo少shao以yi及ji後hou期qi的de生sheng長chang都dou會hui有you一yi定ding的de影ying響xiang。黏nian土tu地di由you於yu前qian期qi肥fei效xiao發fa揮hui較jiao差cha，返fan青qing期qi應ying少shao施shi，孕yun穗sui期qi可ke采cai取qu根gen外wai施shi肥fei，應ying注zhu意yi施shi肥fei不bu要yao過guo多duo，以yi防fang貪tan青qing和he倒dao伏fu。

三是看天施肥，如果返青期遇下雨天
，用化肥施播器將化肥施入，嚴禁撒施化肥，避免造成燒苗、shaoye，yingxiangxiaomaishengchang。sashihuafeibujinxiaomaibunenghenhaodixishou，haihuizaochengfeiliaohuifayuliushi，daozhibubiyaodelangfei。tianhanshishifeihouyaojishiguanshui
，yitigaohuafeideliyonglv。