玉米去雄（打顶花、抽天花）是一项有效而简单易行的增产措施，可使玉米增产１０％以上。玉米去雄虽操作简单，但技术要求严格，稍有不当，反而减产。“去雄不对头，赔了猪一头。”要提高去雄增产效果，去雄中应注意如下事项：一、一定要选地块去雄。并非每一块玉米地都要... Maize to the male (topping, pumping smallpox) is an effective and simple and easy stimulation measures, can yield more than 10% of the corn. Although maize to male is simple, but the technical requirements are strict, a little improper, but cut. “Going male wrong, lose a pig.” To increase the effect of exorcism and increase production, go to the male should pay attention to the following: First, we must choose to block to the male. Not every piece of corn must ...