玉米苗期和穗期过后,进入花粒期。抓住有利时机,搞好玉米后期田间管理,能够促进早熟。补施攻粒肥玉米吐丝后,土壤肥力不足,下部叶片发黄的地块,每亩可追施5-6公斤氮肥,或者用0.4-0.5％的磷酸二氢钾溶液,或3％过磷酸钙浸出液,每亩60-100公斤进行叶面喷洒。喷洒激素在8月初喷洒“喷施宝”等激素,可使玉米提早成熟3-5天,增产6-10％。 Maize seedling stage and after entering the pollen stage. Seize the favorable opportunity, do a good job late field management of corn, can promote premature. Replenishment of fertilizer granulation corn after silk, lack of soil fertility, yellow leaves of the lower part of the plot, per hectare topdressing 5-6 kg of nitrogen fertilizer, or with 0.4-0.5% of potassium dihydrogen phosphate solution, or 3% Calcium leaching solution, 60-100 kg per acre foliar spray. Spraying hormones in early August spraying “Spraying treasure ” and other hormones, can make corn mature 3-5 days earlier, yield 6-10%.