氰戊·乐果对油桐生长及其土壤理化性质的影响  

On Effects of Fenvalerate-Dimethoate on Tung Oil Tree Growth and Soil Physicochemical Properties

作　　者：万盼[1] 刘芸[1] 黄小辉[1] 熊兴政[1] 彭丽媛[1] 陈佳玉[1] 欧阳[1] 袁孝谦 周凯[2] 孟祥江[2] 周长江 

机构地区：[1]西南大学资源环境学院,重庆400716 [2]重庆市林业科学研究院,重庆400036 [3]重庆市高地农业开发有限公司,重庆409815

出　　处：《西南师范大学学报（自然科学版）》2015年第3期120-124,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(31370602);林业公益性行业科研专项(201104043)

摘　　要：通过喷施杀虫剂氰戊·乐果,取样测试油桐幼苗生长情况,分析土壤理化性质的变化,探讨氰戊·乐果对油桐幼苗生长和土壤理化性质的影响效应,为油桐的害虫防治及管理提供科学依据.结果表明:对盆栽的油桐幼苗按照氰戊·乐果使用方法施用3个月后,土壤的pH、全磷和全钾含量均无明显影响,可显著提高土壤中的碱解氮、速效磷和速效钾含量,却使得土壤有机质和全氮含量明显降低,对油桐的生长影响不显著.可见,在一定的剂量范围内,氰戊·乐果可被广泛用作油桐的杀虫剂,其对土壤和植物生长影响不大,但长期施用,可导致土壤板结.By means of spraying fenvalerate-dimethoate ,testing seeding grow th ,analyzing the changes of soil physical and chemical properties ,exploring the influences of fenvalerate-dimethoate on tung oil tree seedling grow th and soil physicochemical properties ,it can provide a scientific basis for the pest control and management of tung oil tree .Results show that ,according to the method of the fenvalerate-dimethoate three months ,it has no significant effects on soil pH ,the content of total P and total K in the soil ;it obvi-ously increases the contents of available nitrogen ,available phosphorus and available potassium but de-crease the contents of organic matter and total N ;it has no significant effects on the grow th of tung oil tree .It indicates that fenvalerate-dimethoate can be widely used as pesticide of tung oil tree and have no impact on the soil and grow th of plant in a certain range .But long-term application of fenvalerate-dime-thoate can lead to soil harden .

关 键 词：油桐 氰戊·乐果 土壤理化性质 株高 地径 

分 类 号：S714.2[农业科学—林学]