今年由于玉米生长期连降大雨,造成田间积水,使植株的生长发育受阻,成熟期推迟。为此,下面介绍几种行之有效的促熟方法: 1.合理追肥法在玉米吐丝期,每亩用硝酸铵10公斤开沟追施,或者用0.2～0.3%磷酸二氢钾溶液(或3%过磷酸钙渗出液)叶面喷施。如果吐丝期已经 This year due to continuous heavy rain during the growing corn, resulting in field water, the growth and development of plants blocked, delayed maturation. To this end, the following describes several proven ways to promote ripening: 1. Reasonable top dressing method Corn silking stage, 10 kg per mu with ammonium nitrate ditching, or with 0.2 to 0.3% potassium dihydrogen phosphate solution ( Or 3% superphosphate exudate) foliar spray. If the spinning period has been