施药时间对马铃薯早疫病防治效果及产量和干物质含量的影响  

Effect of fungicide application timing on control of early blight,yield and dry matter content of potato

作　　者：李清 张雪艳[2] 郦海龙 于梦瀛 宋惠敏 牛丽娟 马欣[1] LI Qing;ZHANG Xueyan;LI Hailong;YU Mengying;SONG Huimin;NIU Lijuan;MA Xin(Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;SnowValley Agriculture Development Co.,Ltd.,Zhangjiakou,Hebei 075000,China)

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,北京100081 [2]中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室,北京100101 [3]雪川农业集团股份有限公司,河北张家口075000

出　　处：《福建农林大学学报（自然科学版）》2022年第6期737-742,共6页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家重点研发计划(2019YFA0607403);国家科技基础性工作专项(2021xjkk0903);国家自然科学基金(32171561);中央级公益性科研院所基本科研业务费专项(BSRF201901)。

摘　　要：为研究施药时间对马铃薯早疫病防治效果及产量和干物质含量的影响,以雪川农业种植园区选育的雪育1号马铃薯为研究对象,设置不施药的对照组和早疫病发病前(7月18日)开始施药的常规方案(每隔7 d施一次,共施5次)、早疫病发病初期(7月25日)开始施药的优化方案(每隔7 d施一次,共施5次)等3种处理,测定马铃薯早疫病的病情指数和病叶率、块茎数和块茎质量及干物质含量等指标.结果表明:与对照组相比,常规方案和优化方案的马铃薯早疫病病情指数和病叶率均显著降低;优化方案的马铃薯干物质含量达到(21.00±0.39)%,与对照组相比,提高了5.21%,满足薯条和薯片的加工标准(干物质含量≥20.0%).To study the effect of timing of fungicide application on the control of early blight,yield and dry matter content of potato,Xueyu No.1 potato cultivated in SnowValley Industrial Park were treated with 3 different programs:conventional program with fungicide sprayed before the onset of early blight(July 18,once every 7 d and 5 applications in total),optimized program with fungicide sprayed at the early stage of early blight(July 25,once every 7 d and 5 applications in total),and control program without fungicide.Then the disease index of early blight,diseased leaf rate,tuber number,tuber weight and dry matter content of potato were measured.The results showed that compared with the control program,the disease index and diseased leaf rate of potato early blight receiving the conventional and optimized programs were significantly reduced.The dry matter content of potato in the optimized program reached(21.00±0.39)%,increased by 5.21%in comparison with the control program,meeting the processing standard(dry matter content≥20.0%)for French fries and potato chips.

关 键 词：马铃薯 种植 加工 早疫病 防治方案 干物质 

分 类 号：S482.2[农业科学—农药学]