International Journal of Chemical Studies
Vol. 5, Issue 6 (2017)
Mapping of soil macro and secondary nutrients by GIS in Shirol Tehsil of Kolhapur District. (M.S.)
Author(s): HK Surabhi, MVVI Annapurna, Nilam B Kondvilkar and RB Pawar
Abstract: A study was conducted to assess available macro and secondary nutrient status of soils of Shirol Tehsil of Kolhapur District by GIS technique. 200 soil samples (0-22.5 cm) drawn during 2013 from 39 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS.
The pH of soils of Shirol Tehsil varied from 7.0 to 9.0, most of the soils found to be moderately alkaline (77.5%) while EC varied from 0.06 to 6.30 dS m-1, the soils found to be normal (91.5%). The calcium carbonate content varied from 1.1 to 15.1 per cent, the area was moderately calcareous (56%) to calcareous (27.5%). Organic carbon content varied from 0.30 to 1.29 per cent. The available nitrogen, phosphorus and potassium ranged from 185 to 580, 14.1 to 49.6 and 89.6 to 980.0 Kg ha-1, respectively. The exchangeable calcium and magnesium ranged from 0.8 to 48.0 and 0.2 to 39.0 cmol (p+) Kg-1, respectively. The soils were 66% and 33.5% sufficient and 34% and 66.5% deficient in exchangeable calcium and magnesium respectively. The available sulphur varied from 7.60 to 49.69 mg Kg-1. The soils were 99% sufficient and 1% deficient in available sulphur content.
Pages: 892-896 | 388 Views 5 Downloads
How to cite this article:
HK Surabhi, MVVI Annapurna, Nilam B Kondvilkar, RB Pawar. Mapping of soil macro and secondary nutrients by GIS in Shirol Tehsil of Kolhapur District. (M.S.). Int J Chem Stud 2017;5(6):892-896.