International Journal of Chemical Studies
Vol. 5, Issue 6 (2017)
Soil fertility mapping of macro nutrients and micro nutrients in Kumachahalli Micro watershed of Chamarajanagar District of Karnataka
Author(s): Pinki Seth, T Chikkaramappa, Sushree Sonakshi Biswal and Yasmin Gulnaz
Abstract: The investigation was conducted at UAS, Bengaluru to know the soil physicochemical, macro and micronutrients status in Kumachahalli-2 micro watershed of Chamarajanagar district. Surface (64) soil samples were collected grid wise by using cadastral map of study area and were analyzed for their fertility status. pH, electrical conductivity and organic carbon value ranged from 6.45-8.60, 0.05 to 0.16 dSm-1, 4.4 to 10.5 g kg-1of soil respectively. The available N, P2O5, K2O ranged from 101.69 to 303.56 kg ha-1, 7.09 to 46.67 kg ha-1 and 170.40 to 484.80 kg ha-1, respectively. The entire micro-watershed was low, low to medium and medium to high in available nitrogen, phosphorus and potassium content respectively. The exchangeable calcium, magnesium were sufficient with values of 2.0 to 13.0 meq./100g and 0.40 to 8.40 meq./100g, respectively. Sulphur was high with value of 9.97 to 67.08 ppm. Available micronutrients iron, manganese, zinc and copper ranged from 2.45 to 11.27 ppm, 0.85 to 15.91 ppm, 0.39 to 1.68 ppm and 0.48 to 1.91 ppm, respectively. Micronutrients viz., Cu, Mn, Zn, Fe were sufficient whereas B was medium in major portion of the micro-watershed area.
Pages: 938-943 | 634 Views 18 Downloads
How to cite this article:
Pinki Seth, T Chikkaramappa, Sushree Sonakshi Biswal, Yasmin Gulnaz. Soil fertility mapping of macro nutrients and micro nutrients in Kumachahalli Micro watershed of Chamarajanagar District of Karnataka. Int J Chem Stud 2017;5(6):938-943.