EFFECT OF PESTICIDES ON MICROBIAL TRANSFORMATION OF SULPHUR IN SOIL

The International Journal of Plant, Animal and Environmental Sciences Pub Date : 2011-04-30 DOI:10.5897/JSSEM.9000026

P. Giri, M. Saha, M. Halder, D. Mukherjee

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引用次数: 8

Abstract

A pot study was conducted in the laboratory of Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, India in the year 2007-2008 to investigate the effect of pesticides, on the microbial transformation of sulphur (S) in soil. Insecticide (Endosulfan), fungicide (Dithane M-45), herbicide (2,4-D) were added to the soil at their recommended doses, respectively and their effect on the proliferation and potentiality of thiosulphate oxiding bacteria, aryl sulphatase, available and total sulphur were investigated in soil. The results of the present investigation revealed that insecticide, endosulfan effectuated a significant detrimental effect on some microbiological, biochemical and chemical properties in soil whereas fungicide, dithane M-45 caused a significant detrimental influence during the later stages in spite of stimulating influence at early stages incubation period. However, herbicide, 2,4-D, brought about a beneficial influence on the microbiological, biochemical and chemical properties in soil. Among the pesticides used in the study, the performance of the herbicide was favorable in all respect.

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农药对土壤中硫微生物转化的影响

2007-2008年，在印度西孟加拉邦Nadia Mohanpur Bidhan Chandra Krishi Viswavidyalaya农业化学与土壤科学系实验室进行了一项盆栽研究，以调查农药对土壤中硫(S)微生物转化的影响。在土壤中按推荐剂量分别添加杀虫剂(硫丹)、杀菌剂(Dithane M-45)和除草剂(2,4- d)，考察了它们对土壤中硫代硫酸盐氧化菌、芳基硫酸酶、有效硫和总硫的增殖和潜能的影响。本研究结果表明，杀虫剂硫丹对土壤中某些微生物、生化和化学性质产生了显著的不利影响，而杀菌剂乙烷M-45虽然在孵化初期具有刺激作用，但在后期产生了显著的不利影响。而2,4- d除草剂对土壤的微生物学、生化和化学性质都产生了有益的影响。在所使用的农药中，该除草剂在各方面的性能均较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The International Journal of Plant, Animal and Environmental Sciences

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