条件筛选
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Why can seed production bases become the main stronghold for the supply of quality seeds?
Zhangye City in Gansu Province, located in the central part of the Hexi Corridor, bordered on the south by the Qilian Mountains at the northern edge of the Qinghai-Tibet Plateau and facing the Badain Jaran Desert of the Inner Mongolia Plateau to the north, lies in the middle reaches of the Heihe River, China's second-largest inland river. The area has abundant sunshine, convenient irrigation conditions and low precipitation, making Zhangye extremely