合理追肥法 在玉米吐丝期,每亩用硝酸铵10千克开沟追施,或者用浓度为0.2%~0.3%的磷酸二氢钾溶液叶面喷施。如果吐丝期已经推迟,可采取隔行去雄的方法减少养分消耗,提高叶温,加快其生育进程。这样做一般可使吐丝期提早2~3天。
剥皮晒棒法 在玉米灌浆后期,当子粒长至正常大小时将苞叶剥开,使子粒外露,促其干燥。这样做一般可使其提前4~5天成熟。
整株晾晒法 如小麦播种期已到,但玉米仍未充分成熟,可将玉米连秆砍下,码在田边或其他空闲处,注意不要堆成大堆,待叶片干枯后再掰下果穗,一般可使千粒重提高20%左右。
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