CAJ | 학술논문

本研究主要应用丹麦NegFry马铃薯晚疫病预测预报模型,以不喷药和每7 d喷药作对照,采用感病品种‘Favorita’和中抗品种‘克新18’进行田间试验,对马铃薯晚疫病进行预测和防治.感病品种不喷药处理(CK1)、感病品种每7 d施药处理(FW)、感病品种测报处理(FN)、中抗品种不喷药处理(CK2)、中抗品种每7 d施药处理(KW)和中抗品种测报处理(KN)的AUDPC值分别为12.73、0.12、0.17、0.12、0.074和0.034,通过邓肯多重极差法(LSR法)进行比较, CK1与FW, FN, CK2, KW, KN 5个处理差异显著,其余各处理之间差异不显著.说明采用测报处理,每7 d施药处理和采用抗病品种能够达到同等防治效果.对于感病品种,测报处理与每7 d施药处理相比减少杀菌剂使用次数2次,每667 m2降低成本70元,与每7 d施药处理相比每667 m2增收27元.对于抗病品种,测报处理与每7 d施药处理相比减少杀菌剂使用次数5次,每667 m2降低成本160元,与每7 d施药处理相比每667 m2增收213元.所以,通过丹麦NegFry预测预报模型,可以准确得出施药时间,既降低生产成本,又有效防控马铃薯晚疫病,同时又提高马铃薯产量和质量.
본연구주요응용단맥NegFry마령서만역병예측예보모형,이불분약화매7 d분약작대조,채용감병품충‘Favorita’화중항품충‘극신18’진행전간시험,대마령서만역병진행예측화방치.감병품충불분약처리(CK1)、감병품충매7 d시약처리(FW)、감병품충측보처리(FN)、중항품충불분약처리(CK2)、중항품충매7 d시약처리(KW)화중항품충측보처리(KN)적AUDPC치분별위12.73、0.12、0.17、0.12、0.074화0.034,통과산긍다중겁차법(LSR법)진행비교, CK1여FW, FN, CK2, KW, KN 5개처리차이현저,기여각처리지간차이불현저.설명채용측보처리,매7 d시약처리화채용항병품충능구체도동등방치효과.대우감병품충,측보처리여매7 d시약처리상비감소살균제사용차수2차,매667 m2강저성본70원,여매7 d시약처리상비매667 m2증수27원.대우항병품충,측보처리여매7 d시약처리상비감소살균제사용차수5차,매667 m2강저성본160원,여매7 d시약처리상비매667 m2증수213원.소이,통과단맥NegFry예측예보모형,가이준학득출시약시간,기강저생산성본,우유효방공마령서만역병,동시우제고마령서산량화질량.
@@@@The potato late blight forecasting model is an efficient tool to deal with this problem. The purpose of this study was to apply NegFry forecasting model for the control of late blight in Heilongjiang Province, with no application and application of fungicides weekly as controls and using susceptible variety 'Favorita' and moderately resistant variety 'Kexin 18' as tested plant materials. Area under Disease Progress Curve (AUDPC) of CK1 (susceptible variety with no fungicide application), FW (susceptible variety with fungicide application weekly), FN (susceptible variety with fungicide application based on Negfry model), CK2 (resistant variety with no fungicide application), KW (resistant variety with fungicide application weekly), and KN (resistant variety with fungicide application based on Negfry model), were 12.73, 0.12, 0.17, 0.12, 0.074 and 0.034, respectively. Significant difference was found between CK1 and FW, FN, CK2, KW, and KN for AUDPC as tested by using DMRT, but for the five treatments no significant difference was detected, suggesting that fungicide application based on Negfry model, application weekly, and using resistant variety al could reach the same effect for late blight control. For the susceptible variety, fungicide application based on Negfry model was reduced by two times, application cost reduced by 70 Yuan/667 m2, and benefit increased by 27 Yuan/667 m2 compared with application weekly. For the resistant variety, fungicide application based on Negfry model was reduced by 5 times, application cost reduced by 160 Yuan/667 m2, and benefit increased by 213 Yuan/667 m2 compared with application weekly. Therefore, by using Negfry model fungicide application time could be predicted, and the production cost reduced, but late blight control ed, and potato yield and quality improved accordingly.