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当前位置: 首页 > 文章 > 施用7%草甘膦水剂对土壤盐化和碱化的影响 农药学学报 2006,8 (2) 167-171
Position: Home > Articles > Effect of 7% Glyphosate Aqueous Solution on Soil Salinize and Alkalize Chinese Journal of Pesticide Science 2006,8 (2) 167-171

施用7%草甘膦水剂对土壤盐化和碱化的影响

作  者：
秦治中;姜辉;陶传江;林荣华;吴学民
单  位：
农业部农药检定所生物技术研究测试中心;中国农业大学理学院
关键词：
草甘膦水剂;土壤盐化和碱化;电导率;钠碱化度;钠吸附比
摘  要：
通过室内盆栽模拟实验,研究了5种浓度的7%草甘膦水剂对土壤盐化和碱化的影响。结果表明,施药后土壤盐度(用电导率表示)、钠碱化度(ESP)、钠吸附比(SAR)、总碱度及pH值都明显增大,且随施药次数的增加,上述各项盐化和碱化指标不断增大;每次施药后,土壤的各项盐化和碱化指标都随施药浓度的升高呈增大趋势。6次施用0.352g/L的7%草甘膦水剂后,土壤的电导率由施药前的1 010增加为2 460μS/cm,ESP由2.247%增加为7.983%,SAR由1.576增加为4.305,总碱度由1.443mmol/L增加为4.485mmol/L,pH值由6.92变为7.89。虽然土壤各项盐化和碱化指标的变化都还在非盐化和非碱化土范围内,但有盐化和碱化的趋势。
译  名：
Effect of 7% Glyphosate Aqueous Solution on Soil Salinize and Alkalize
作  者：
QIN Zhi-zhong~1,JIANG Hui~2,TAO Chuan-jiang~2,LIN Rong-hua~2,WU Xue-min~(1*)(1.College of Science,China Agricultural University,Beijing 100094,China;2.The Center for Agrochemicals Biological and Environmental Technology,Insititute for the Control of Agrochemicals,Ministry of Agriculture,P.R.China,Beijing 100026,China)
关键词：
glyphosate aqueous solution;soil salinize and alkalize;electrical conductivity;(exchangeable) sodium percentage;sodium adsorption ratio
摘  要：
Potted plant experiment was used in studying the effect of 7% glyphosate aqueous solution at five concentrations on soil salinize and alkalize.The results indicate that after glyphosate was applicated,salinity expressed by electrical conductivity,exchangeable sodium percentageESP,sodium adsorption ratioSAR,alkalinity and pH of soil increased obviously.With the increasing of the times of glyphosate applicated,all indexes mentioned above increased.With the increasing of the concentration,all indexes increased after glyphosate was applicated every time.After 7% glyphosate aqueous solution at the concentration of 0.352 g/L was applicated six times,electrical conductivity of soil changes from 1 010 μS/cm to 2 460 μS/cm;ESP of soil changes from 2.247% to 7.983%;SAR of soil changes from 1.576 to 4.305; alkalinity of soil changes from 1.443 mmol/L to 4.485 mmol/L;pH of soil changes from 6.92 to7.89.Though the changes of all indexes are within the range of nonsaline and nonsodic soils,the soils affected by salt in glyphosate aqueous solution tend to saline-sodic soils.

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