玉米去雄增产显著湖北省孝感师专农学系４３２１００周伯瑜，周耕玉米去雄是一项传统简易增产技术，各地叫法不一，有的又叫打天花、打顶花。玉米去雄，就是当玉米雄穗（天花、顶花）刚刚抽出，尚未散粉时，隔株或隔行拔除雄穗。俗话说：“玉米抽了头，力气大如牛”、“玉... Significantly increase the yield of maize to male Xiaogan Teachers College, Hubei Province 432100 Zhou Bo Yu, Zhou Geng Ma is a traditional simple yield-increasing technology, all over the different names, and some also called playing smallpox, topped flowers. Maize to male, that is, when the males tassels (smallpox, top flowers) has just pulled out, not when the powder, the strain isolated or interlaced tassel. As the saying goes: “Corn pumping head, strength as cattle,” "jade ...