摘要
盖草能、骠马、莠去津是当下林业生产中最常用的除草剂,试验对杨树苗分别喷洒三个不同浓度三种除草剂,试验过程中调查不同时期杨树苗的苗高值和地径增长量,并对数据进行了统计分析,使研究具有了科学依据,通过分析总结出不同浓度的除草剂对杨树苗生长影响不同;并确定了各除草剂的施用浓度,旨在为杨树育苗中的化学除草提供较为可靠的理论依据.试验结果表明:3.2 ml/L浓度时盖草能对杨树幼苗生长有抑制作用,浓度应控制在2 ml/L以下;骠马对杨树幼苗的影响很小,浓度在4 ml/L下使用还会促进杨树幼苗的生长;莠去津即使浓度在1 g/L时仍会对杨树幼苗产生极强的抑制作用,在杨树幼苗时期除草不建议使用.
Haloxyfop、fenoxaprop、atrazine is the most commonly used herbicides in forestry production. In this experiment,three different concentrations of herbicides were sprayed on poplar seedlings,which height and soil diameter increment were investigated during different periods. The statistical analysis of the data made the research have scientific basis. It was concluded that different concentrations of herbicides had different effects on the growth of poplar seedlings. The concentration of each herbicide was determined,the purpose of which was to provide reliable theoretical basis for chemical weeding in poplar seedling raising. Test results showed that: Haloxyfop could inhibit the growth of poplar seedlings in concentration of 3.2 ml/L,so the concentration should be controlled below 2 ml/L. The effect of fenoxaprop on poplar seedling was very small,even if the concentration below 4 ml/L could also promote the growth of poplar seedlings,and atrazine could produce a strong inhibitory effect on poplar seedlings even at a concentration of 1 g/L,so weeding is not recommended during the seedling stage of poplar.
出处
《湖南生态科学学报》
CAS
2017年第4期40-44,共5页
Journal of Hunan Ecological Science
基金
"十三五"国家重点研发计划(编号:2016YFD060040104)
关键词
除草剂
杨树苗
生长效应
herbicide
poplar seedlings
growth effect
