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0引言甘肃省是我国洋葱种植的主产区之一,由于特殊的地理条件,品质优于全国,特别是甘肃酒泉和嘉峪关地区地处河西走廊的中部,降雨量在100 mm以下,日照资源、地下水资源和雪水资源丰富,夏季气温不高,并逐步成为中国洋葱种植最集中,单产和总产最高的地区。“酒泉洋葱”被甘肃省确定为全省著名品牌,洋葱产业在甘肃省的经济地位逐步凸显。由于受传统种植习惯和自然条件的限制,洋葱收获一直依靠人工,人工
0 Introduction Gansu Province is one of the main producing areas of onion growing in our country. Due to special geographical conditions and quality, Gansu Province is superior to the whole country. In particular, Gansu Jiuquan and Jiayuguan areas are located in the central part of Hexi Corridor with rainfall below 100 mm. Groundwater resources and snow-rich water resources, the summer temperature is not high, and gradually become the most concentrated onions in China, the highest yield and total output of the region. “Jiuquan onion ” was identified as the province’s famous brand in Gansu Province, onion industry in Gansu Province, gradually highlighting the economic status. Due to the traditional planting habits and natural conditions, onion harvesting has been relying on artificial, artificial