摘要
研究不同处理对桉树伐桩控萌的影响,以探寻高效的伐桩除萌方法,为低效桉树林改造提供技术支持。试验采用草甘膦异丙胺盐作为处理药剂,结果表明:砍除伐桩萌芽条后立即喷涂草甘膦异丙胺盐的效果显著优于伐后20d处理,且草甘膦浓度越大控萌效果越明显。喷涂草甘膦到伐桩韧皮部的控萌效果显著优于喷涂草甘膦到萌芽条切口,从经济成本估算来看,采用70%草甘膦喷涂伐桩韧皮部的成本最低,远低于原有的人工劈除萌芽条方法。因此,该方法可作为低效桉树林改造中控制伐桩萌芽的有效手段。
This study investigated the effectiveness of various treatments for controlling sprouting from eucalypt stumps,aiming to identify an efficient method for stump sprout management and support the renovation of low-efficiency Eucalyptus plantations.The experiment used glyphosate isopropylamine salt as the treatment agent.The findings revealed that applying glyphosate isopropylamine salt immediately after cutting stump sprouts was significantly more effective than treatment applied 20 days later.Moreover,higher concentrations of glyphosate isopropylamine salt resulted in more pronounced sprout control.Application of glyphosate isopropylamine salt to the phloem of cutting piles proved to be substantially more effective than application to the sprout cut surfaces.From an economic perspective,treating phloem of cutting piles with 70%glyphosate isopropylamine salt emerged as the most cost-effective approach,significantly cheaper than traditional manual removal of sprouts.Thus,this method represented an effective strategy for managing stump sprouting in the renovation of low-efficiency Eucalyptus plantations.
作者
玄祖迎
连辉明
杨焕忠
许雄坚
唐永锐
利润章
陈雪梅
XUAN Zuying;LIAN Huiming;YANG Huanzhong;XU Xiongjian;TANG Yongrui;LI Runzhang;CHEN Xuemei(Foshan Institute of Forestry Science,Foshan 528222,Guangdong,China;Guangdong Provincial Key Laboratory of Silviculture/Guangdong Academy of Forestry,Guangzhou 510520,Guangdong,China;Dongjiang Forest Farm of Guangdong Province,Heyuan 517465,Guangdong,China;Foshan Yunyong Forest Farm,Gaoming 528518,Guangdong,China)
出处
《桉树科技》
2024年第3期47-51,共5页
Eucalypt Science & Technology
基金
广东省林业科技创新项目(2020KJCX012)。
关键词
桉树
伐桩
控萌
草甘膦异丙胺盐
Eucalyptus
stump
sprouting control
glyphosate isopropylamine salt
