化学除草剂对寒地稻田杂草野慈姑的防治效果  

Effect of Chemical Herbicides on Sagittaria trifolia L.in Rice Field in Cold Region

作　　者：肖明纲[1] 张擘[1] 赵北平[1] 郑福余[1] 孙佰君 蔡艳彬 王玉杰[1] XIAO Ming-gang;ZHANG Bo;ZHAO Bei-ping(Biotechnology Research Institute,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150028)

机构地区：[1]黑龙江省农业科学院生物技术研究所,黑龙江哈尔滨150028 [2]泰来县克利镇乡村振兴发展服务中心,黑龙江泰来162405 [3]河南商优农业科技有限责任公司,河南郑州450000

出　　处：《安徽农业科学》2021年第3期147-149,184,共4页Journal of Anhui Agricultural Sciences

基　　金：国家“十三五”重点专项“黑龙江湿润区粳稻全程机械化丰产增效技术体系集成与示范”(2018YFD0300106);黑龙江省“三区”人才项目。

摘　　要：采用一种化学防治方法控制稻田杂草野慈姑的发生和危害。试验设2个处理,处理A:空白对照,不施用农药,处理B:插秧前喷施30%莎稗磷和15%乙氧磺隆或10%吡嘧磺隆,插秧后喷施48%灭草松,并保持水层。结果表明,与处理A相比,经过化学药剂处理后,野慈姑的株高显著降低(P<0.05),单株结实数极显著减少(P<0.01),植株鲜重明显降低,总株数明显减少。野慈姑总株防效为66.39%,总鲜重防效为82.40%。产量构成因素穗粒数、穗数、结实率、千粒重等无显著差异,此浓度条件对水稻生长和产量无影响。该方法可用于寒地稻田野慈姑的综合防治。The experiment was conducted to control Sagittaria trifolia L.in rice field by using a chemical control method in Tailai County.The test had two treaments:treatment A,contrast,without herbicides;treatment B,spraying 30%anilofos and 15%ethoxosulfuron or 10%pyrazosulfuron before transplanting,spraying 48%bentazone after transplanting,and keeping the water layer.The results showed that,compared with treatment A,the plant height of Sagittaria trifolia was significantly reduced at the level of 0.05,the amount of corm of single plant was significantly deceased at the level of 0.01,the fresh weight and the total number of plant was decline.The control effect of the total plant and the total fresh weight was 66.39%and 82.40%,respectively.There was no significant difference in grain number per ear,spikelet number,seed setting rate and 1000 grain weight among the yield components at the level of 0.05.The dosage of herbicides had no effect on rice growth and yield.This method can be applied to the comprehensive control of Sagittaria trifolia in rice field in cold region.

关 键 词：野慈姑 除草剂 防治效果 

分 类 号：S482.4[农业科学—农药学]