皋兰县是甘肃中部18个干旱县之一，十年九旱是皋兰的特点。
Gaolan County Central 18 dry counties in Gansu, one of the Kowloon-drought years is Gaolan features.
皋兰2号种苗次之，但皋兰2号种苗对黑斑病和叶锈病的自然发病率又低于吴旗11号和西宁5号种苗。
Gaolan No. 2 seedlings showed slightly lower growth rate but lower natural incidence by black spot and leaf rust than that of Wuqi Non and Xining No 5 seedlings.
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