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1.玉米去雄:玉米适时去掉雄花,可以增产1～2成。因为去雄可以协调植株体内养分分配,改善通风透光条件,防止倒伏,减轻玉米螟为害,促进雌穗发育,增加穗粒数,使子粒饱满,产量增加。玉米可采取隔行去雄,也可采取隔株去雄,去雄株不能超过总株数的40%。玉米田四周边际3～4行不必去雄,否则影响授粉。 玉米去雄宜在雄穗刚刚露出尚未散粉时进行,过早过迟都不利于增产。去雄动作要轻,一手握植株上部,一手轻轻拔出雄穗。去雄分2～3次进行。如能在去雄后进行人工
1. Corn to male: corn timely removal of male flowers, can increase 1 to 2 percent. Because the male can coordinate the distribution of nutrients in plants, improve ventilation and light conditions, to prevent lodging, reduce corn borer damage, promote ear development, increase the number of grains per spike, so that the full grain yield increased. Maize can be interlaced to male, can also be taken to male plants, male plants can not exceed 40% of the total number of plants. Around the cornfield 3 to 4 lines do not have to go hung, or pollination. Maize should be hungry in the tassels just exposed when the powder is not yet carried out too late is not conducive to yield. Remove the male action to light, the upper part of the plant in one hand and gently pull out the tassel in one hand. To male 2 or 3 times. If you can in the male after the man-made