(1)Developed coconut land cover map and soil related constraint maps for the coconut growing regions of Coimbatore and Tirippur districts of Tamilnadu state using Remote Sensing and GIS techniques. (2)Developed mathematical model for leaf area estimation of coconut. (3)Evaluated and modeled peanut response for agrotechnology transfer using DSSAT-CROPGRO-PEANUT model. (4)Studied the effect of graded levels of NPK on yield and quality of peanut and developed fertilizer prescription through M&B and Targeted yield models for peanut variety CO4.