Soil Evaluation for Agricultural Land Use—II. Productivity Potential Appraisal

Based on soil characteristics, interpretations in respect of present productivity and predicted potentiality of individual soil series for crops have been attempted. Validity of the productivity ratings was checked by comparing the index values with yield data for two crops under rainfed farming. Highly significant values of correlation coefficient (r) for sorghum (0.975) and cotton (0.954) under similar management conditions have been obtained. Regression curves can be utilized for yield predictions from soil data. Coefficient of improvement for each soil series has been worked out. Present productivity map on the basis of natural soil fertility and traditional agricultural system and soil potentiality map based on predicted results from adequate management practices have been prepared.