Vol. 7, Issue 6 (2019)
Identification of soil fertility constraints by GIS in Domanal sub watershed under northern dry zone of Karnataka for site specific recommendations
Author(s): Patil PL, Deepa Kalappanavar, Geetha GP, Basavashree Yadawad, Adarsh GS and Dasog GS
Abstract: Soil samples from Domanal sub-watershed in northern dry zone of Karnataka were drawn at 320 m grid interval and assessed for their fertility parameters. Analytical data was interpreted and statistical parameters like range, mean standard deviation, coefficient of variation, kurtosis and skewness were calculated for each parameter. Soil fertility maps were prepared for each parameter under GIS environment using Arc GIS v 10.4. Soils were slightly alkaline to strongly alkaline with non saline to slight salinity. Majority of area in micro-watershed is low to medium in nitrogen and available phosphorous, soil organic carbon, available potassium was low to high, available boron was low to medium and sulphur was medium. Regarding available micronutrients, zinc and iron were deficient in more than half of the sub watershed area, whereas copper and manganese were sufficient in the soils. The mapping of nutrients by GIS technique in the sub watershed revealed that, available N, P, S, Zn and Fe are important soil fertility constraints.
Pages: 3052-3061 | 188 Views 59 Downloads
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How to cite this article:
Patil PL, Deepa Kalappanavar, Geetha GP, Basavashree Yadawad, Adarsh GS, Dasog GS. Identification of soil fertility constraints by GIS in Domanal sub watershed under northern dry zone of Karnataka for site specific recommendations. Int J Chem Stud 2019;7(6):3052-3061.
