摘要
试验采用0.01%芸苔素内酯可溶液剂、250 g/L吡唑醚菌酯乳油和63%非离子表面活性剂作为试验药剂,在苹果树花前、落花后、幼果期、果实膨大期各喷施1次,探索植物生长调节剂与杀菌剂协同增效和精准使用技术,减少化学农药使用量,为苹果增产提质提供新技术。结果表明,芸苔素内酯与吡唑醚菌酯混施可有效提高苹果坐果率,促进幼果生长发育,减少畸形果和病(裂)果的发生,促进果实膨大,改善果形,增加果实含糖量,提高产量,并对苹果斑点落叶病、褐斑病等苹果主要病害有一定防效;在减少20%杀菌剂用量的条件下,对苹果的生长发育仍有显著促进作用,可实现农药减量增效和苹果的提质增产。
To explore the synergy and precise use technology of plant growth regulators and fungicides,reduce the use of chemical pesticides,and provide new technologies for increasing the production and quality of apple trees,0.01%Brassinolide SL,250 g/L Pyraclostrobin EC and 63%non-ionic surfactant were applied at prebloom,postbloom,young fruit period and fruit expanding process.The results showed that the combination of Brassinolide and Pyraclostrobin could improve fruit setting rate,promote the growth and development of young fruits,reduce the occurrence of deformed fruits and diseased(cracked)fruits,promote fruit expanding,improve fruit shape,increase fruit sugar content,increase unit yield,and had a certain control effect on apple leaf spotting disease,brown spot disease,etc.Under the condition of reducing the dosage of 20%fungicide,the growth and development of apple trees can still be significantly promoted,which can realize the reduction of pesticides and the improvement of apple quality.
作者
李卫伟
张武云
曹挥
贺春娟
张利军
靳彦卿
沈晓强
刘凤
贾蕊勤
LI Weiwei;ZHANG Wuyun;CAO Hui;HE Chunjuan;ZHANG Lijun;JIN Yanqing;SHEN Xiaoqiang;LIU Feng;JIA Ruiqin(Shanxi Province Plant Protection and Plant Quarantine Station,Taiyuan 030001,China;College of Plant Protection,Shanxi Agricultural University,Taigu 030801,China;Wanrong Plant Protection and Quarantine Station,Wanrong 044200,China)
出处
《山西农业科学》
2021年第1期50-53,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省重点研发计划项目(201903D211001-1)。
关键词
苹果
芸苔素内酯
吡唑醚菌酯
增产提质
apple trees
Brassinolide
Pyraclostrobin
increase production and improve quality
