The study looked at how soil nutrients vary in tobacco fields to help farmers use fertilizers more efficiently. By using geostatistics and GIS, researchers found that soil nutrients like nitrogen, phosphorus, and potassium were moderately spread out in the fields. Soil organic matter was more concentrated in certain areas, while nitrogen was evenly distributed. Different mathematical models were used to describe the patterns of these nutrients in the soil. The maps created from this data can help farmers know where to apply fertilizers more precisely, improving tobacco production.