高温火焰对幼龄茶园不同叶龄期禾本科杂草防除效果  

Effects of High-temperature Flame on Grass Weed at Different Developmental Stages in Tea Gardens

作　　者：何秀龙 冉海燕 兰献敏 陈仕红 叶照春[1] HE Xiu-long;RAN Hai-yan;LAN Xian-min(Institute of Plant Protection,Guizhou Academy of Agricultural Science,Guiyang,Guizhou 550006)

机构地区：[1]贵州省农业科学院植物保护研究所,贵州贵阳550006

出　　处：《安徽农业科学》2024年第22期137-139,共3页Journal of Anhui Agricultural Sciences

基　　金：黔农科院青年基金项目“幼龄茶园高温火焰除草装置优化及除草效果研究”(2021-01)。

摘　　要：为明确高温火焰对幼龄茶园禾本科杂草最佳防治时期,进一步优化茶园高温火焰除草使用技术。利用手推式高温火焰除草机在幼龄茶园禾本科杂草2~3叶期、5~6叶期、>10叶期开展高温火焰除草试验,验证高温火焰对不同叶龄期禾本科杂草防除效果。结果表明,在禾本科杂草2~3叶期、5~6叶期及>10叶期处理后7 d禾本科总株防效为99.05%、98.31%、86.28%,15 d禾本科总株防效为94.68%、81.63%、49.31%,30 d禾本科总株防效为76.16%、74.88%、27.29%。高温火焰对2~3叶期、5~6叶期禾本科杂草防效显著优于>10叶期。高温火焰对禾本科杂草防效随着叶龄期的增大而逐渐下降。以禾本科杂草为优势种的茶园,应在低叶龄期进行防除,增加防效,延长防治持效期。To clarify the optimal control period for grass weeds,and further optimize the high-temperature flame weed control technology in tea gardens.This study conducted high-temperature flame weed control experiments on 2-3 leaf,5-6 leaf,and>10 leaf stages of grass weeds in tea gardens using a manually pushed high-temperature flame weeding machine to verify the effectiveness of controlling grass weeds at different leaf ages.The results showed that after treatment with 2-3 leaf stage,5-6 leaf stage,and>10 leaf stage,the total control effects on grass weeds were 99.05%,98.31%,86.28%after 7 days,94.68%,81.63%,49.31%after 15 days,and 76.16%,74.88%,27.29%after 30 days.The high temperature flame had a significantly control effect on grass weeds in the 2-3 leaf and 5-6 leaf stages than>10 leaf stages.The control effect of high-temperature flames on grass weeds gradually decreased with the increase of leaf age.In order to increase control effectiveness and extend the duration,tea gardens with grass weeds as the dominant species should be controled in the low leaf age stage.

关 键 词：幼龄茶园 禾本科杂草 高温火焰除草 防效 

分 类 号：S451[农业科学—植物保护]