Status of available nutrients of soils under vertisols from washi tahsil of Osmanabad district of Maharashtra, India
Priyanka B Patil, Prabhakar R Jatkar, Prabhakar B Adsul
The present research work was carried out during the 2012-13 to study the Status of available nutrients of soils under Vertisols from Washi tahsil of Osmanabad District of Maharashtra. For this purpose total 60 representative soil samples were collected from 30 villages and two soil samples from each village of Washi tahsil were collected according to their representative depths. From each village 2 soil samples Vertisols (>30 cm) were collected. In physical analysis Bulk density, Particle density, Porosity were studied. Average bulk density, particle density and porosity was ranges from 1.24 to 1.95 Mg m-3, 2.00 to 2.96 Mg m-3 and 13 to 55 per cent respectively. In chemical analysis viz., pH, EC, organic carbon, free calcium carbonate, macronutrient and micronutrient were analyzed. Available N, P and available K were varied from 62.50 to 619.00 kg ha-1, 5.30 to 44.80 kg ha-1and 142.20 to 944.60 kg ha-1. Exchangeable Ca++ and exchangeable Mg++ content ranged from 20 to 53 cmol (P+) kg-1 and 2 to 28 cmol (P+) kg-1, respectively and available S ranged from 2.99 to 67.94 mg kg-1. The DTPA- Fe, DTPA-Mn, DTPA-Zn and DTPA-Cu in soils varied from 1.26 to 6.36 mg kg-1, 1.06 to 12.6 mg kg-1, 0.12 to 1.60 mg kg-1 and 0.48 to 9.17 mg kg-1, respectively. HWS-B ranges from 0.03 to 1.18 mg kg-1.