以甘肃省玉米区域试验和生产试验资料为基础，对玉米品种陇单339的丰产性、稳产性、适应性、抗病性和脱水性进行了分析。结果表明，陇单339适应性广、丰产稳产性好、耐密、抗倒、脱水快，适宜机械化收获，适宜在甘肃河西、白银、临夏、平凉和庆阳等地区及新疆、宁夏、内蒙古等同类生态区的灌溉区和旱作区种植。

Based on the field experiment and production test data of corn in Gansu province， the high yield， stability， adaptability， disease resistance and dehydration of corn cultivar Longdan 339 are analyzed. The result shows that Longdan 339 has wide adaptability， high yield， tight tolerance， resistance to fall， dehydration is fast， suitable for mechanized harvesting， It is suitable for Hexi， Baiyin， Linxia， Pingliang and Qingyang of Gansu and Xinjiang， Ningxia， Inner Mongolia and other similar ecological areas of irrigation and dryland cultivation.

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