夏播芝麻进入初花期以后,氮、磷、钾的吸收量都明显增加。因此,在始花期追施氮肥与喷施磷酸二氢钾是重要的增产措施。当大田有10％的植株开花时,每亩追施尿素7.5—12.5公斤,撒施或条施行间,施后松土掩肥。芝麻进入初花期时,进行根外喷施磷酸二氢钾,每亩用0.5公斤,兑水125公斤,选晴天下午喷施。隔3天再喷一次,增产效 Summer sowing sesame into early flowering, nitrogen, phosphorus and potassium absorption increased significantly. Therefore, topdressing nitrogen fertilizer and spraying potassium dihydrogen phosphate at the initial flowering stage are important stimulation measures. When 10% of Daejeon plants flowering, topdressing urea is 7.5-12.5 kg per acre. Sesame into early flowering, the root spraying potassium dihydrogen phosphate, 0.5 kg per acre, watered 125 kg, the election sunny afternoon spraying. Spray every 3 days, increase production efficiency