Vol. 7, Issue 6 (2019)
Extractability of different extractants and availability of sulphur in long-term rice growing alluvial soils of West Bengal
Author(s): Shreya Das, Animesh Ghosh Bag, Deblina Ghosh, Nitin Chatterjee, Samrat Adhikary, Gayatri Sahu and Gora Chand Hazra
Abstract: The present study was conducted during the year 2017-2018 with the objectives to assess the sulphur status in soils, delineate GPS-GIS based soil fertility map and to know the suitability of extractants for sulphur in one of the most intensively long-term rice growing regions of West Bengal, India. In-situ samples of soil and rice plants were collected by GPS based Grid sampling approach. The 0.15 % CaCl2-extractable sulphur in soils ranged from 2.57 – 38.62 mg kg-1, while sulphur content in grain and straw of rice ranged from 1198.87–1922.57 and 1802.22–3200.00 mg kg-1, respectively. Soils are deficient in available sulphur. Among the four extractants used (CaCl2, AB-DTPA, Mehlich-3 and Modified Morgan), Mehlich-3 extracted the highest amount of S ranging from 9.68-375.06 mg kg-1. Regression analysis between extractable concentration in soil and plant parts revealed that Mehlich-3 was the most suitable extractant for sulphur for this type of soil.
Pages: 1557-1563 | 272 Views 60 Downloads
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How to cite this article:
Shreya Das, Animesh Ghosh Bag, Deblina Ghosh, Nitin Chatterjee, Samrat Adhikary, Gayatri Sahu, Gora Chand Hazra. Extractability of different extractants and availability of sulphur in long-term rice growing alluvial soils of West Bengal. Int J Chem Stud 2019;7(6):1557-1563.
