今年春季低温多湿,不少高粱地块播种期推迟,出苗较晚, 生育延后, 所以, 高粱后期管理要立足于促早熟.1.喷施磷、钾肥在高粱开花期和灌浆期连续喷洒两次(相隔7～10天)磷酸二氢钾.磷、钾肥可以促进植株制造有机物,并加速其运转. 因而喷施磷钾复合肥可以延长叶片的功能期,加速籽粒灌浆,提高千粒重, Spring this year, low temperature and humidity, many sorghum plots sowing delayed, late emergence, delayed reproduction, so the late management of sorghum should be based on early precocity .1 spraying phosphorus and potassium in the sorghum flowering and filling two consecutive spraying two (Separated by 7 to 10 days) of potassium dihydrogen phosphate.Phosphorus, potassium fertilizer can promote plant production of organic matter, and accelerate its operation.Therefore spraying phosphorus and potassium fertilizer can extend the functional period of the leaves, accelerate grain filling and improve 1000-grain weight,