毛竹低产林应用化学除草剂效果分析

Effectiveness Analysis of Chemical Herbicide Applied in Low-yield Phyllostachys pubescens Forests

砍杂抚育是毛竹低产林改造的主要技术措施,将传统的人工除草改为化学除草,可提高效率,降低成本。对广丰县横坑林场的毛竹低产林应用高效化学除草剂盖灌能48%乳油和草甘膦41%水剂混合药喷施除(控)杂灌试验,结果表明,一次施药即可清除竹林中90%以上的杂灌木,并且不会影响毛竹生长;化学除草成本仅为人工除草成本的32.86%。

The cutting cultivation was the main technical measure of low-yield Phyllostachys pubescens reconstruction. Changing the traditional manual weeding to chemical weeding can increase efficieney and reduce costs. The efficient chemical herbicides which mixed with 48% Garlon4 and 41% aqueous EC ＆ Glyphosate were applied in low-yield Phyl- lostachys pubescens forests in Hengkeng Forest Farm of Guangfeng, and the test of control was made. Results showed that once spraying pesticide can be removed more than 90% of the miscellaneous shrubs in bamboo forests, and will not affect the growth of bamboo; The cost of chemical weeding was only the 32.86% of manual weeding.