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倒伏是提高宁夏引黄灌区春麦生产水平的重要限制因素。常见的有茎部倒伏与根部倒伏两种类型。此外,还有穗部倒伏。过量的氮素营养,过份的栽培密度,过多的供水以及不良的天气(风、雨、阴湿等)等等,是形成前两种倒伏的原因,而品种则与所有类型倒伏有密切关系。因此,要圆满地解决倒伏问题,必须遵照毛主席“外因是变化的条件,内因是变化的根据”的教导,从选育抗倒伏良种入手,相应地研究栽培问题。
Lodging is an important limiting factor to improve the production level of spring wheat in irrigated areas of Yellow River diversion in Ningxia. There are two types of stem lodging and root lodging. In addition, there is spike lodging. Excessive nitrogen nutrition, excessive planting density, excessive water supply and poor weather (wind, rain, dampness, etc.) are the reasons for the formation of the first two types of lodging, while breeds are closely associated with all types of lodging relationship. Therefore, to satisfactorily solve the problem of lodging, we must follow Chairman Mao’s teaching that “external conditions are the source of change, and internal conditions are the basis for change,” starting with breeding elite for lodging resistance and studying cultivation accordingly.