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Soil nutrient status mapping of Nagenahalli micro-watershed under Eastern Dry Zone of Karnataka by remote sensing, detailed soil survey and GIS techniques

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Title Soil nutrient status mapping of Nagenahalli micro-watershed under Eastern Dry Zone of Karnataka by remote sensing, detailed soil survey and GIS techniques
 
Creator C.N. Nalina, K.S. Anil Kumar, M. Chandrakala, S. Sheela Rani, K. Sujata, K.G. Shilpa Shree, Rajendra Hegde and S.K. Singh
 
Subject Nutrients, mapping, micro watershed, Eastern Dry Zone, Karnataka
 
Description MSc. Thesis
Soil nutrients are essential for crop growth. Spatial variability of nutrients can occur in various scales, between regions,between fields or within the field. RS and GIS techniques enables farm management based on small-scale spatial variability of soil and crop parameters in the field. The present study was carried out in Nagenahalli microwatershed, Doddaballapur taluk, Bangalore rural district with the objective to determine and map the macronutrient status of soils in the watershed using GIS technique. The NPK was analyzed and mapped using Arc GIS to quantify the level of spatial nutrients availability. Results indicated that NPK ranged from 31.36 to 376.32 kg ha-1(N), 21.29 to 390.62 kg ha-1 (P2O5) and 55.10 to 521.47 kg ha-1 (K2O) respectively in the surface soils. Nutrient map showed that the soils were poor in available nitrogen and available potassium whereas sufficient in available phosphorous content. Furthermore NPK map can be used to identify deficient or sufficient areas for efficient fertilizer management.
 
Date 2020-06-30T08:04:01Z
2020-06-30T08:04:01Z
2016-07-01
 
Type Research Paper
 
Identifier 0976-058X
http://krishi.icar.gov.in/jspui/handle/123456789/37609
 
Language English
 
Relation Not Available;
 
Publisher AGRICULTURAL RESEARCH COMMUNICATION CENTRE