Review Article: Soil Fertility Assessment Using GIS

Abstract

Application of digital soil mapping process for the prediction of key physicochemical characteristics has been well understood all over the world. Farmers' options depend on soil fertility, which control in Agricultural practices (usage organic matter and fertilizers application) and agricultural production. Therefore, analysis of soil is important for fertility status comprehension to raise production of crops. Soil fertility Evaluation and soil fertility maps can supply information and serious agent for suitable strategies and decisions making to help farmers and improve land management. Applied System for Land Evaluation (ASLE) software and nutrient index (NI) used to evaluate soil fertility. Tracking variations of spatial distribution is significant to know soil fertility state. Subsequently, it is substantial to trace and define status of soil properties and soil fertility study for cultivation of various crops.