Prabhoo Singh1*, Ramesh Chand Bana2 and Anju Kanwar Khangarot3
1Department of Natural Resources Management, College of Agricultural Sciences, Bule Hora University, Ethiopia
2Department of Agronomy, S.K.N. Agriculture University, Jobner-303329, Rajasthan, India
3Department of Agronomy, Swami Keshwanand Rajasthan Agriculture University, Bikaner- 334006, Rajasthan, India
Email: prabhuag93@gmail.com
Received-25.04.2022, Revised-12.05.2022, Accepted-24.05.2022
Abstract: Present investigation was conducted to assess the spatial variability of available soil nutrients and using GIS for nutrient management in hot arid regions of North-Western India. Altogether, one hundred fifty surface soil samples were collected using global positioning system (GPS) from the farmer’s field of Nagaur district area covering five villages.Soils of the district were found to be slightly to moderate alkalinity in reaction with a low organic carbon (OC) content and low in cation exchange capacity (CEC).The analysis of the soil samples revealed that majority of the soil samples fall under low to medium soil fertility.The soil samples were analyzed for macro and micro nutrient viz, available nitrogen (N), available phosphorus (P), Available potassium (K), copper (Cu),iron (Fe), manganese (Mn) and zinc (Zn), Results of the soil analysis revealed that Available N and Pwere low throughout the region, while available K, was medium. Among the micronutrients, Cu and Mn were adequately supplied in most areas, but Zn and Fe were inadequate in large parts. The spatial variability available plant nutrients viz., N, P, K, Cu, Fe, Mn and Zn in hot arid regions of Rajasthan across the land uses in region, has been mapped in a geographic information system (GIS), and their adequacy determined as per the criteria followed in the soil testing laboratories. Present study also showed that the hot arid regions of north western India not only deficient in individual nutrients but they also suffer from all plant nutrients deficiencies which warrants attention for soil test based soil fertility management.
Keywords: Geographic information system, Global positioning system, Macronutrients, Micronutrients, Soil laboratory
References
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Verma, T.P., Moharan, P.C., Naitam, R.K., Meena, R.L., Sunil Kumar, Singh, S., Tailor, B.L., Singh, R.S. and Singh, S.K. (2017). Impact of cropping intensity on soil properties and plant available nutrients in hot arid environment of north western India. Journal of Plant Nutrition, 40, 2872-2888.