Status of available micronutrient cations in soils of Aravalli district of Gujarat

Abstract

A study was undertaken to assess the status of available micronutrient cations in soils of Aravalli district of Gujarat. Total 240 surface (0-15 cm) soil samples were collected from cultivated farmer’s fields of 6 talukas of Aravalli district during 2016. The soil samples were analysed for DTPA-extractable micronutrients (Fe, Mn, Zn and Cu). The DTPA-extractable Fe, Mn, Zn and Cu content in these soils ranged from 3.99 to 16.23, 4.77 to 36.54, 0.15 to 2.76 and 0.12 to 2.40 mg/kg with a mean value of 9.27, 13.80, 0.74 and 0.87 mg/kg, respectively. Overall, nutrient index values for available Fe, Mn, Zn and Cu were 2.30, 2.69, 1.84 and 2.73 in soils of Aravalli district which indicates adequate, very high, marginal and very high fertility status, respectively.