Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations
Sorption-desorption processes govern the movement of all chemicals including pesticides in soils. The present investigation was undertaken to study the sorption-desorption of imidacloprid, using a batch method, on soils of five different location of India. Sorption data were fitted to Freundlich is...
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| Format: | Article |
| Language: | English |
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Federation of Eurasian Soil Science Societies
2013-07-01
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| Series: | Eurasian Journal of Soil Science |
| Subjects: | |
| Online Access: | http://dergipark.ulakbim.gov.tr/ejss/article/view/5000078272/5000072496 |
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| author | Shailendra Singh Chauhan Anjana Srivastava Prakash Chandra Srivastava Ankita Verma |
| author_facet | Shailendra Singh Chauhan Anjana Srivastava Prakash Chandra Srivastava Ankita Verma |
| author_sort | Shailendra Singh Chauhan |
| collection | DOAJ |
| description | Sorption-desorption processes govern the movement of all chemicals including pesticides in soils. The present investigation was undertaken to study the sorption-desorption of imidacloprid, using a batch method, on soils of five different location of India. Sorption data were fitted to Freundlich isotherm. The log K value was the highest for loam type soil (1.830) and the lowest for clay type soil (1.661). The value of 1/n was the maximum for silt loam soil (0.909) but minimum for loam soil (0.723). Simple correlation analysis indicated that among soil properties only electrical conductivity showed a higher but marginally non-significant negative correlation with log K (r = -0.826) indicating that higher concentration of solutes solutes are conducive to low sorption capacity of soil. The desorption data conformed to two surfaces Freundlich desorption isotherm. The values of 1/n1' corresponding to easily desorbed fraction of imidacloprid showed significant negative correlation with soil pH (r = -0.886, significant at p ≤0.05) but significant positive correlation with clay content (r = 0.980, significant at p ≤0.01). The desorption index for easily desorbed fraction of imidacloprid (n1’/n) also had significant negative correlation with soil pH (r = 0.953, significant at p ≤0.05). From cumulative desorption data, it appeared that bioavailability of imidacloprid would be lower in neutral soil than acidic or alkaline soils. |
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| format | Article |
| id | doaj.art-9cfa681d00d944028d3c0460234636b4 |
| institution | Directory Open Access Journal |
| issn | 2147-4249 |
| language | English |
| last_indexed | 2024-03-12T04:01:54Z |
| publishDate | 2013-07-01 |
| publisher | Federation of Eurasian Soil Science Societies |
| record_format | Article |
| series | Eurasian Journal of Soil Science |
| spelling | doaj.art-9cfa681d00d944028d3c0460234636b42023-09-03T11:33:47ZengFederation of Eurasian Soil Science SocietiesEurasian Journal of Soil Science2147-42492013-07-0122107113Sorption – desorption of imidacloprid insecticide on Indian soils of five different locationsShailendra Singh Chauhan0Anjana Srivastava1Prakash Chandra Srivastava2Ankita Verma3G.B.Pant University of Agriculture & Technology, College of Basic Science & Humanities, Department of Chemistry, Pantnagar, Uttarakhand, IndiaG.B.Pant University of Agriculture & Technology, College of Basic Science & Humanities, Department of Chemistry, Pantnagar, Uttarakhand, IndiaG.B.Pant University of Agriculture & Technology, College of Agriculture, Department of Soil Science, Pantnagar, Uttarakhand, IndiaG.B.Pant University of Agriculture & Technology, College of Basic Science & Humanities, Department of Chemistry, Pantnagar, Uttarakhand, IndiaSorption-desorption processes govern the movement of all chemicals including pesticides in soils. The present investigation was undertaken to study the sorption-desorption of imidacloprid, using a batch method, on soils of five different location of India. Sorption data were fitted to Freundlich isotherm. The log K value was the highest for loam type soil (1.830) and the lowest for clay type soil (1.661). The value of 1/n was the maximum for silt loam soil (0.909) but minimum for loam soil (0.723). Simple correlation analysis indicated that among soil properties only electrical conductivity showed a higher but marginally non-significant negative correlation with log K (r = -0.826) indicating that higher concentration of solutes solutes are conducive to low sorption capacity of soil. The desorption data conformed to two surfaces Freundlich desorption isotherm. The values of 1/n1' corresponding to easily desorbed fraction of imidacloprid showed significant negative correlation with soil pH (r = -0.886, significant at p ≤0.05) but significant positive correlation with clay content (r = 0.980, significant at p ≤0.01). The desorption index for easily desorbed fraction of imidacloprid (n1’/n) also had significant negative correlation with soil pH (r = 0.953, significant at p ≤0.05). From cumulative desorption data, it appeared that bioavailability of imidacloprid would be lower in neutral soil than acidic or alkaline soils.http://dergipark.ulakbim.gov.tr/ejss/article/view/5000078272/5000072496sorption-desorptionimidaclopridsoilloamclayFreundlich isotherm |
| spellingShingle | Shailendra Singh Chauhan Anjana Srivastava Prakash Chandra Srivastava Ankita Verma Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations Eurasian Journal of Soil Science sorption-desorption imidacloprid soil loam clay Freundlich isotherm |
| title | Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations |
| title_full | Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations |
| title_fullStr | Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations |
| title_full_unstemmed | Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations |
| title_short | Sorption – desorption of imidacloprid insecticide on Indian soils of five different locations |
| title_sort | sorption desorption of imidacloprid insecticide on indian soils of five different locations |
| topic | sorption-desorption imidacloprid soil loam clay Freundlich isotherm |
| url | http://dergipark.ulakbim.gov.tr/ejss/article/view/5000078272/5000072496 |
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