玉米去雄是一项简便易行的增产措施。尤其是在追肥不足或土壤干旱、密度偏高、成熟较晚的地块上 ,去雄效果更加明显。据我站试验调查 ,玉米去雄后 ,植株变矮 ,叶色深绿 ,雌穗抽丝期提前 2～ 3天 ,早熟 5～ 7天 ,果穗增长 ,空秆率降低 ,穗粒数和千粒重都明显增加 ,一般增产 2 0 Maize to male is a simple and easy stimulation measures. Especially in the lack of top dressing or soil drought, high density, mature late land, the male effect is more obvious. According to my station test survey, maize to male, the plant becomes shorter, the dark green leaves, female ear pumping period of 2 to 3 days in advance, early 5 to 7 days, ear growth, empty stalk rate, grain number and grain weight Have increased significantly, generally increasing 20%