不同除草剂对刺槐萌蘖的控制效果研究  

Inhibitory Effects of Herbicides Injection on Sprouting of Robinia pseudoacacia

作　　者：郭慧玲 张义坤 张兆霞 贾思民 董广月 韩飞 王志勇 Guo Huiling(Taishan Forest Pest Management and Quarantine Station,Taishan Scenic Area Scientific Research Institute,Taian 271000,China)

机构地区：[1]泰安市泰山森林病虫害防治检疫站,泰山景区科研所,山东泰安271000 [2]泰山风景名胜区管委会,山东泰安271000

出　　处：《安徽农学通报》2019年第16期104-106,121,共4页Anhui Agricultural Science Bulletin

基　　金：泰安市科技计划项目(20103057);国家林业局泰山森林健康示范项目

摘　　要：通过开展不同除草剂对刺槐根萌蘖的控制效果试验,结果表明:(1)刺槐伐桩萌蘖控制效果的大小与草甘膦浓度的关系依次为4倍>2倍>1倍。伐桩采用打孔注药和抹药施用4倍浓度草甘膦,可使伐桩基部萌芽量减少100%,从根蘖苗总量控制效果来看,打孔注药的效果优于抹药方式的。(2)刺槐在未发芽前,打孔注射不同浓度的草甘膦,萌蘖控制效果与草甘膦浓度的关系依次为4倍>3倍>2倍>1倍,施用2.8倍以上草甘膦对刺槐根蘖苗数量都达到了明显的控制效果,比对照减少97.1%~99%。(3)刺槐发芽后,打孔注射4倍浓度处理的百草枯或2.4-D丁酯,百草枯处理使刺槐根蘖苗总量减少100%;2.4-D丁酯处理使刺槐根蘖苗总量比对照减少98.2%。The results of herbicide inhibition test on root sprouting of Robinia pseudoacacia were as follows:(1)The different inhibitory effects on stump sprouting and the concentrations of glyphosate was described as 4 times>2 times>1 times.Four times glyphosate treatment could reduce the sprouting numbers of stump base to 100% by drill. ing and plastering,From the inhibitory effect of total sprouting numbers,injection was better than plastering.(2)Dif. ferent concentrations of glyphosate were injected into the locust trunk before burgeon.The different inhibitory effects on root sprouting and concentrations of glyphosate was described as 4 times>3 times>2 times>1 times,Glyphosate which treated with concentration more than 2.8 times had a significant inhibitory effect on the number of locust roottiller seedlings,which decreased by 97.1%-99%.(3)the same 4 times concentration of paraquat or 2.4-D butyl ester was injected into the locust trunk after burgeon,The total numbers of root tillers injected with paraquat were de. creased 100%;2.4-D-butyl ester decreased the total numbers of locust tillers by 98.2%.

关 键 词：刺槐 除草剂 萌蘖控制 打孔注射 草甘膦 百草枯 2.4-D丁酯 

分 类 号：S792.27[农业科学—林木遗传育种]