农业资源与环境学报2015，Vol.32Issue(5)：471-476,6.DOI:10.13254/j.jare.2015.0039
除草剂残留下生物炭对土壤微生物的影响
Effects of Bio-char on Soil Microbes in Herbicide Residual Soils
摘要
Abstract
Effects of biological carbon(bio-char)on soil microbial community were studied by pot experiments simulating long residual her-bicide residues in soil environment, which clarifed the improvement of biochar and its structural properties on soil microenvironment. The re-sults showed that fungi and actinomycetes had the same effect tendency within 0~0.72 mg·kg-1 in clomazone residue which increased the role of stimulation with crop growth process prolonged, especially in high residue treatment, but strong inhibitory effect on bacteria community was occured early which returned to normal until sugar beet growth to fiftieth day. Soil fungi community decreased with bio-char adding, but had no significant difference with the control. When clomazone residue in soil was below 0.24 mg·kg-1, soil actinomycetes community was higher than control without bio-char, bacteria increased first and then reduced after adding carbon as below 0.12 mg·kg-1. Biochar was'deep hole'structure containing C, O, S and other elements. The results showed that a certain concentration clomazone residue in soil would stim-ulate soil fungi and actinomycetes to grow. After adding the biochar, the inhibition effect of high herbicides residual on bacterial would be al-leviated.关键词
生物炭/微生物/异噁草松Key words
biological carbon(bio-char)/microbe/clomazone分类
资源环境引用本文复制引用
王根林,李玉梅,刘峥宇,宋柏权,李艳..除草剂残留下生物炭对土壤微生物的影响[J].农业资源与环境学报,2015,32(5):471-476,6.基金项目
黑龙江省普通高校重点实验室开放课题(2014) （2014）
