氮肥及拿敌稳施用量对水稻病害及其产量的影响  

Effects of Nitrogen Fertilizer and Nadiwen WG Application Rate on Rice Disease and Field

作　　者：车喜庆 桑海旭[1] 王井士[1] 于深州[1] CHE Xiqing;SANG Haixu;WANG Jingshi;YU Shenzhou(Liaoning Provincial Saline-Alkali Land Utilization and Research Institute,Panjin 124010,China)

机构地区：[1]辽宁省盐碱地利用研究所,辽宁盘锦124010

出　　处：《东北农业科学》2021年第1期68-71,共4页Journal of Northeast Agricultural Sciences

基　　金：国家重点研发计划项目(2018YFD0200200)。

摘　　要：为探究氮肥及拿敌稳对水稻稻瘟病和纹枯病的防治效果及产量的影响,通过田间小区试验,对各个处理施用不同氮肥及药量。结果表明:拿敌稳对水稻稻瘟病及纹枯病均有较好的防治效果且随浓度的增加防治效果增强;与常规施氮相比较,减氮20%有利于对稻瘟病的防治;施用拿敌稳300 g/hm^(2)并减氮20%对病害的防治效果最好且产量最高。To explore the effects of nitrogenous fertilizer and Nadiwen on the control and yield of rice blast and sheath blight,different nitrogen fertilizer and fungicides were applied to each treatment through field plot expert.The results showed that the Nadiwen had good control effect on rice blast and sheath blight,and the control effect increased with increased concentration.Compared with conventional nitrogen application,reducing nitrogen by 20%was beneficial to the control of rice blast.Application of Nadiwen 300 g/ha and reduction nitrogen fertilizer 20%had the best control effect and the highest yield.

关 键 词：氮肥 拿敌稳 水稻病害 产量 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]