冬去春来,麦苗返青,从营养生长逐渐进入生殖生长阶段。此期是争穗多,穗大,增加粒数,提高结实率和增加千粒重,夺取丰收的关键阶段。因此,一定要根据年前麦苗长势和春季生育特点,结合土壤,气候等条件,加强管理,争取增产增收。主要管理措施是: 一、巧施肥。对群体较大,麦苗健壮的高产田块,应掌握“苗期促,返青控,拔节攻”的施肥原则,少施或不施返青肥。重施拔节孕穗肥,控叶蹲节,防止倒伏。对于因缺肥造成的落黄早衰和晚播迟发的弱苗,要巧施返青肥,重施拔节肥,猛攻二、三类苗。应氮肥与磷肥结合,有机肥与无机肥结合,控旺促弱。亩用腐熟的人畜粪20～30担加尿素4～8公斤或碳铵10～25公斤(旺苗可少用,弱 Winter to spring, barley green, from vegetative growth gradually into reproductive growth stage. This issue is spawning spike, big spike, increase grain number, increase seed setting rate and increase 1000 grain weight, to seize the key stage of harvest. Therefore, we must strengthen the management according to the characteristics of wheat seedlings grown in previous years and the characteristics of spring fertility in combination with the conditions of soils and climates, and strive to increase production and incomes. The main management measures are: First, clever fertilization. For large groups, robust barley high yield plots, should have “promote seedling, green control, jointing attack,” the principle of fertilization, with little or no application of green manure. Re-apply jointing booting panicle, leaf control squat festival, to prevent lodging. Due to lack of fertilizer caused by falling yellow premature aging and late broadcast of weak seedlings, to Qiaoxian return green manure, heavy dressing section fat, fierce attack two or three seedlings. Should be combined with nitrogen and phosphorus fertilizer, organic fertilizer and inorganic fertilizer, control prosperous weak. Mura with man-made manure 20 to 30 Tam plus urea 4 to 8 kg or ammonium bicarbonate 10 to 25 kg (Wang Miao can be less, weak