春小麦是高寒阴湿区的主要粮食作物之一,约占粮田损种面积的40％左右,一年小麦的丰欠直接关系着该区粮食收成的好坏。但由于青秕问题,造成粮食生产水平低而不稳,面对这个难点,不得不引起农业科技工作者的重视。青秕即贪青不能正常成熟,致使籽粒饱满度低,千粒重下降。限制着优质高产。因气候品种栽培水平不同,青秕的程度也不尽相同。造成青秕的原因从生产实践来看,是受多种因 Spring wheat is one of the main food crops in the alpine humid area, accounting for about 40% of the damaged area of ​​grain fields. The year-long deficit in wheat is directly related to the grain yield in the area. However, due to the problem of barley, resulting in low and unstable grain production, facing this difficulty, it has to arouse the attention of agricultural science and technology workers. Barley is not greedy green mature, resulting in low plumpness of grain, grain weight decline. Limit high quality and high yield. Because of the different cultivation levels of climate varieties, the degree of barley is not the same. The causes of barley from the production point of view, is affected by a variety of causes