玉米空秆有两种:一种是瘠薄地易出现完全性空秆,即雌穗抽不出来,群众称“公子”或“孤老株”,不传种接代;另一种是施肥不当,玉米腋芽发育受阻,雌穗萎缩,不结实,群众称“瘪粒”或“不离娘穗”。形成空秆的原因有6条: 1.土壤缺肥,密度过大 玉米 There are two kinds of empty corn stalks: one is infertile prone to complete empty stalks, that is, the ear can not be pumped out, the masses called “son” or “solitary strains”, do not pass the seed generation; the other is improper fertilization, Axillary bud development blocked corn, ear shrinkage, not strong, the masses called “shriveled grain” or “not leave mothers ear.” There are six reasons for the formation of empty stalks: 1. The soil is short of fertilizer and the density is too large