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当前位置: 首页 > 文章 > EDTA强化紫花苜蓿对污水库周边农田土中钒吸收的研究 安徽农业科学 2014 (14) 117-120
Position: Home > Articles > Effects of Vanadium and Chemical Enhanced Contaminated Soil to Vanadium Uptake by Alfalfa in Pot Experiment Journal of Anhui Agricultural Sciences 2014 (14) 117-120

EDTA强化紫花苜蓿对污水库周边农田土中钒吸收的研究

作  者：
韩利林;任丽娟;王立志;李玲
单  位：
新疆大学化学化工学院
关键词：
钒;紫花苜蓿;土壤;EDTA
摘  要：
[目的]采用盆栽试验,考察了在新疆某石化企业污水库周边农田土壤中施加不同浓度钒和EDTA后紫花苜蓿富集钒的规律。[方法]采用钽试剂法萃取植物和土壤中的钒,以紫外可见分光光度计检测。[结果]在加入相同钒量的条件下,向土壤中施入不同浓度的EDTA。随着EDTA浓度的增加,紫花苜蓿吸收钒量先增加后减少,在EDTA为5 mmol/kg时达到最大值。钒在土壤中的5种形态占钒总量的比例总体大小依次为有机物结合态>交换态>铁锰氧化物结合态>碳酸盐结合态>水溶态。经过对比,紫花苜蓿对土壤中添加EDTA中的钒吸收量比未添加EDTA的略有增加。通过对紫花苜蓿中钒含量和土壤中钒含量的相关性分析,发现种植土壤中添加和未添加EDTA后,紫花苜蓿中钒含量都与土壤中钒含量具有显著相关性。
译  名：
Effects of Vanadium and Chemical Enhanced Contaminated Soil to Vanadium Uptake by Alfalfa in Pot Experiment
作  者：
HAN Li-lin;LI Lin;College of Chemistry and Chemical Engineering,Xinjiang University;
关键词：
Vanadium;;Alfalfa;;Soil;;EDTA
摘  要：
[Objective] Pot experiment was conducted to study the enrichment rules of alfalfa treated with different concentration of heavy metals V and EDTA. [Method]BPHA extraction vanadium plant and soil samples in the detection of vanadium,meter in the UV spectrophotometry. [Result] Under the same vanadium soil culture concentration,with increasing the concentration of EDTA in soil,it was accumulated more in alfalfa. And arrived at 5 mmol / kg is the optimal values,then high concentration began to reduce. Vanadium five forms in the soil of total proportion size in the order of OM > EX > Fe-Mn > CARB > H2O. Under the same EDTA soil culture concentration,in different growth period and different V content,the absorption of V in plant with EDTA treatment was significantly higher than the control. V content in alfalfa and V content in the soil for properties correlation analysis. V content in alfalfa which without adding EDTA and added EDTA,V content in alfalfa and V content in the soil has significant correlation.

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