论文部分内容阅读
玉米后期是从抽雄、吐丝至成熟;约在八月中旬到九月下旬,历时50天左右。这时雄穗抽出,开花散粉;雌穗分化完成,吐丝受精。植株由营养生长转入了生殖生长,是形成产量的重要时期。应加强管理。一、施肥喷肥:由于后期经历时间较长,往往发生脱肥现象,叶片枯黄早衰,影响光合作用和有机物质的积累,受精胚珠也常因养分不足;得不到很好的发育,形成秕籽。如发现脱肥现象,可在吐
Late maize from tasseling, silk to mature; about mid-August to late September, which lasted 50 days. At this moment, the tassel is taken out and the flowering powder is loosened; the ear differentiation is completed and the silk is fertilized. Plants from vegetative growth into reproductive growth, is the formation of an important period of production. Should be strengthened management. First, fertilization and fertilization: As a result of a long period of time later, tend to occur fattening phenomenon, the leaves withered yellow premature aging, affecting photosynthesis and accumulation of organic matter, fertilizing ovules are often due to lack of nutrients; not good development, the formation of 秕seed. As found in the phenomenon of fat, can spit