CAJ | 학술논문

晚疫病是陇南市马铃薯主要病害。为了有效控制晚疫病流行，确保陇南市马铃薯产业安全，通过连续8年观测，建立了以7月份平均气温、7月份降水量、6月上旬至8月中旬降水日数为自变量的回归预测模式。筛选出最佳防治农药氟菌·霜霉威以及常用农药甲霜灵锰锌的最佳防治时期和防治次数。即：采用氟菌·霜霉威于7月上旬喷药防治1次即可；或用甲霜灵锰锌于发病初期开始，每7~10 d喷药1次，7月底停止防治。
만역병시롱남시마령서주요병해。위료유효공제만역병류행，학보롱남시마령서산업안전，통과련속8년관측，건립료이7월빈평균기온、7월빈강수량、6월상순지8월중순강수일수위자변량적회귀예측모식。사선출최가방치농약불균·상매위이급상용농약갑상령맹자적최가방치시기화방치차수。즉：채용불균·상매위우7월상순분약방치1차즉가；혹용갑상령맹자우발병초기개시，매7~10 d분약1차，7월저정지방치。
Potato late blight is a main disease of potato production in Longnan City. In order to control the epidemic of the disease effectively and ensure potato production safely, a regression prediction model was established based on systematic observation of the average temperature and the precipitation in July, and precipitation days in the early June to mid-August as independent variables. Fluopicolide-propamocarb as a favorable preventive fungicide was chosen for potato late blight control. The best prevention time and application frequency of the conventional fungicide Metalaxyl mancozeb had been calculated. One application of Fluopicolide-propamocarb in the early July was effective to control the disease. The use of Metalaxyl mancozeb should be applied at the beginning of the disease, and applied once in 7-10 days, and stopped at the end of July.