Spatial Distribution of Sulphur and its Relationship with Soil Attributes under Diverse Agro-climatic Zones of West Bengal, India
Keywords:Agro-climatic zone, available sulphur, mapping, spatial distribution
AbstractThis investigation is aimed to conduct a delineation study to know the spatial distribution of available sulphur (S) in different agro-climatic zones and their influencing soil factors. Geographical information system (GIS) is an important tool to identify the S deficient sites. In this study, Arc Info GIS has been used to prepare the spatial distribution maps of available S in the soil of different districts. For this, grid-based detailed block-wise soil sampling has been carried out during 2017-2019 in long-term crop-growing fields from ten (Darjeeling, Alipurduar, South Dinajpur, Malda, Murshidabad, Nadia, Bankura, Purulia, Birbhum and East Midnapore) districts of West Bengal, India, belonging to six different agro-climatic zones. Spatial distribution maps (1:50000) show that available S highly varies from one agro-climatic zone to another zone. The results showed that available S content was highest in the terai zone (20.28 Â± 8.00 mg kg-1) followed by the northern hill zone (11.09 Â± 5.54 mg kg-1) and old alluvial zone (10.39 Â± 6.8 mg kg-1). The lower available S was found in areas under the red and laterite zone (6.47 Â± 4.29 mg kg-1). This study concluded that available S status is low to deficient for red and laterite and coastal saline zones, which differs from hill and terai zone. Organic carbon content and silt content exerted a positive correlation (r = 0.79 and 0.78, respectively) with available S.
How to Cite
The copyright of the articles published in Journal of the Indian Society of Soil Science vests with the Indian Society of Soil Science (ISSS), who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The ISSS has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ISSS where information will be utilized.