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我国南、北方冬小麦单产差异的成因小召小麦是我国主要粮食作物之一，按播种期不同可分成春小麦和冬小麦两类，我国以冬小麦为主，冬小麦分布范围、播种面积、单产、总产都大于春小麦。我国冬小麦主要分布在东部季风区长城以南、青藏高原以东的广大地区，以秦岭－淮河一线...
The causes of the differences in yield per unit area of winter wheat in South China and North China Kumon is one of the main grain crops in China. According to different sowing dates, it can be divided into spring wheat and winter wheat. Winter wheat is mainstay in our country, and the distribution area, sown area, Greater than spring wheat. China’s winter wheat is mainly distributed in the eastern monsoon zone south of the Great Wall, east of the Qinghai-Tibet Plateau to the vast area, Qinling - Huaihe first-line ...