夏玉米隔行去雄能增产,但要必须掌握好以下四项关键技术。 一、去雄时期 当玉米雄穗刚露头尚未开花散粉时去雄最合适,其效果亦最佳。为什么呢?因为此时植株尚矮,雄穗脆嫩,极易拔出。若去雄过晚,容易拔掉叶片和折断茎秆。去雄要选择晴天为宜,一般以上午9点至 Summer maize interbreeding to increase production, but must grasp the following four key technologies. First, the era of emasculation When the maize tassel had just emerged out of flowers scattered when the most suitable male, its effect is also the best. Why? Because the plant is still short at this time, tassel crisp, easy to pull out. If you go too late, easy to pull off the leaves and broken stems. To choose a sunny day to appropriate, usually to 9 o’clock in the morning