玉米是雌雄同株异花授粉作物,雄花(俗称天花)分枝多,体积大,花粉量足,植株本身为了抽雄,撒粉,要消耗很多养料。特别是在肥力不足,生长较差的情况下,更严重地影响发蒲结实。为此,我们在学习外地经验的基础上,于一九七三年和一九七四年秋季在夏程里、黎明等大队搞了玉米“隔行去雄”多点对比试验和大田示范,获得了明显的增产效果。 Corn is hermaphrodite flower pollination, male flowers (commonly known as smallpox) and more branches, large volume, enough pollen, the plant itself tasseled, dusting, to consume a lot of nutrients. Especially in the case of under-fertility and poor growth, the catastrophic consequences are even more serious. To this end, on the basis of our experience in the field, we conducted a number of comparative experiments and field demonstrations of maize interlacing to maize in summer seasons and at dawn in the autumn of 1974 and in the autumn of l74 in order to obtain Significant increase in production.