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1玉米空秆的原因空秆分为两种类型,一是空秆无穗,二是有穗无粒。1.1品种因素品种方面随着种子市场的进一步放开,一些纯净度差、未经品种适应性试验的玉米单交种直接进入大田生产,往往因不能适应当地气候,生育期延长,玉米幼苗生长不整齐,出现大小苗分化,小苗生长不良,不能形成正常果穗,造成空秆。有些品种在遗传特性上对栽培条件适应能力差,因间苗过晚或者留苗密度过大,导致
1 reasons for empty corn stalks empty stalks divided into two types, one empty stalk no ears, the second is a spike without grain. 1.1 Varieties Varieties With the further liberalization of the seed market, a number of poor purity, without the adaptability of varieties of maize single cross-species directly into the field production, often due to not be able to adapt to the local climate, growth period, corn seedling growth is not Tidy, emergence of size seedling differentiation, poor growth of seedlings, can not form a normal ear, resulting in empty stalks. Some varieties of the genetic characteristics of the adaptability to the cultivation conditions is poor, because too late seedling or seedling density is too large, resulting