“早穿皮袄午穿纱”,这句话十分生动形象地表述了新疆温差变化之大。这种变化,从生活上考虑,很多人可能认为是烦人的;殊不知,它对农业生产却是大有好处的。新疆处于无霜期短的高寒地区,而农作物的产量却不低,尤其粮食作物的蛋白质含量多,棉花的纤维特别洁白,它的拉力很强,甜菜的含糖量高,瓜果品质好,驰名国内外。这些当然是由于新疆光源充足,日照时 “As early as wearing a jacket and wearing yarn,” this remark vividly expresses the great temperature changes in Xinjiang. This change, taken from the point of view of life, may be considered as annoying to many; it is not known, however, to the benefit of agricultural production. Xinjiang is in the alpine region with a short frost-free period, while the yield of crops is not low. In particular, the protein content of food crops is high, and the fiber of cotton is especially white. Its pulling force is strong, the sugar content of beet is high, the quality of fruits is good, outer. Of course, these are due to the abundant light source in Xinjiang, when sunshine