Vol. 7, Issue 6 (2019)
Delineation and geographic information system (GIS) mapping of soil macronutrients status in sugarcane growing tracts of prudential sugar factory zone in Chittoor district, Andhra Pradesh
Author(s): M Kavitha, B Vajantha, MVS Naidu, Y Reddi Ramu, T Giridhara Krishna and GP Leelavathy
Abstract: Soil fertility mapping with specific reference to macronutrients was carried out by analyzing 270 geo-referenced soils collected from 8 mandals of sugarcane growing soils of Prudential sugar factory zone, of Chittoor district in Andhra Pradesh. Soils were analyzed for pH, EC, OC and available macronutrients (N, P, K and S). Soil reaction varied from acidic to strongly alkaline (4.73 to 9.40). However, electrical conductivity (EC) remains within safe range for crops (<4 dSm-1). SOC varies from 0.01 to 0.75 per cent with a mean value of 0.42 per cent. The available nitrogen content was found to be in the range of 25 to 326 kg ha-1 with mean value of 120 kg ha-1 indicating low to medium status. The available phosphorus (P2O5) content in soils varied from 19.5 to 206.1 kg ha-1 with a mean value of 59.7 kg ha-1 and indicated that their fertility class was low to high status. Potassium (K2O) availability was found to be to be in the range of 42 to 585 kg ha-1 with a mean value of 186 kg ha-1 and indicated that their fertility class was low to high status. The available sulphur content was found to be in the range of 0.5 to 59.5 mg kg-1 with a mean value of 26.42 mg kg-1 and indicated that their fertility class was low to high status.
Pages: 11-16 | 644 Views 71 Downloads
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How to cite this article:
M Kavitha, B Vajantha, MVS Naidu, Y Reddi Ramu, T Giridhara Krishna, GP Leelavathy. Delineation and geographic information system (GIS) mapping of soil macronutrients status in sugarcane growing tracts of prudential sugar factory zone in Chittoor district, Andhra Pradesh. Int J Chem Stud 2019;7(6):11-16.
