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在玉米的后期田间管理中,去雄是一项简单易行的增产措施。去雄得当一般可增产10％以上。为此,各地农户应在酌施粒肥的基础上,做好去雄这一工作。1.玉米去雄的好处(1)可以调节养分,促进雌穗生长。去雄后可节省雄穗开花所需的养分和水分,使之集中供给雌穗发育,增加穗长和德粗,提高千粒重。(2)可以提早雌穗抽丝,使雌、雄花期协调。据观察,去雄后因养分集中,能提早拙丝1～2天,而且成熟早、空秆少。(3)可以改善玉米中下部叶层透光条件,有利于提高中下部叶片的光合能力。(4)可以减轻虫害,特别是玉米螟
In maize field management in the late, to male is a simple and easy stimulation of production. Decency can be generally increased by 10% or more. To this end, farmers throughout the country should be based on the application of granulated fertilizer, to do a good job of this male. The benefits of maize to male (1) can regulate nutrients and promote ear growth. After the male to save tassel flowering required nutrients and water, so that the centralized supply of female ear development, increase the spike length and German rough, improve 1000-grain weight. (2) The ear can be sprouted early, so that female and male flowering coordination. It is observed that due to the concentration of nutrients to the male, can Zhuozi 1 to 2 days earlier, and mature early, less stalks. (3) It can improve the light transmission conditions of the middle and lower leaves of corn, which is beneficial to improve the photosynthetic capacity of middle and lower leaves. (4) can reduce pests, especially corn borer