%T Application of Geographical Information System to Understand Spatial variations of Soil Available Nutrients in Northern Karnataka, India %9文摘:土壤肥力的空间变异性对立地施肥具有重要意义。为了了解情况，我们在印度卡纳塔克邦亚德吉尔区万图尔加村采集了25个土壤样本。样品分析电导率(EC)，氢(pH)功率，有机碳(OC)，氮(N)，磷(P2O5)和钾(K2O)。此外,SPSS(版本。19)利用常规统计分析和ArcGIS技术，获取土壤速效养分的分布和空间变异信息。结果表明:土壤EC值变化范围为0.13 ~ 0.25 dS/m，平均值为0.18 dS/m;PH值范围为6.62 ~ 8.82，平均值为7.89。有效OC为0.14% ~ 1.90%，平均值为0.78%。同样，N、P2O5和K2O的平均值分别为215.3 kg/ha、31.5 kg/ha和513.4 kg/ha。EC的SD和CV分别为0.031和16.69%，pH、OC、N、P2O5和K2O分别为0.56和7.04、0.39和51.16、100.9和46.86、19.12和60.61、160.88和31.33。 Spatial variability maps for various nutrients prepared shows the huge variation in the soil nutrients availability. This variability appeared due to lack of balanced application of fertilizers. It was suggested that an appropriate applications of nutrients necessary for selected land based on soil nutrients. %0 - Journal Article %I - %@ - 0125-895