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吡嘧磺隆对稻田土壤真菌群落结构及土壤酶活性的影响
Authors
周颖
曹焜
+3 more
王光华
荆瑞勇
郭永霞
Publication date
1 January 2016
Publisher
Abstract
采用PCR-DGGE和比色法,在室内培养条件下研究施用不同浓度吡嘧磺隆(0.4,4,40mg/kg)对土壤真菌群落结构及土壤酶活性的影响。结果表明:施用吡嘧磺隆7d时提高了土壤脱氢酶及多酚氧化酶活性,抑制葡聚糖酶活性,真菌多样性指数无明显变化;14d时,随着施药浓度的增大,脱氢酶活性减弱,多酚氧化酶活性增强,真菌多样性指数逐渐增大。21d时,随施用吡嘧磺隆浓度增大,土壤脱氢酶和多酚氧化酶活性会降低,而土壤葡聚糖酶恢复至对照水平,真菌多样性指数增大。试验结果为全面了解吡嘧磺隆对土壤微生态环境的影响提供数据依据
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Northeast Institute of Geography and Agroecology, Chinese Academy Of Sciences
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Last time updated on 21/04/2018