Evaluation of CROPGRO-Tomato Model under Different Dates of Planting and Cultivars under Semi-arid Environment

A field investigation was undertaken during Kharif (June–September) 2019 at Agriculture Research Institute, Professor Jayashankar Telangana State University, Rajendranagar, Hyderabad, Telengana State, India with an object to evaluate the CROPGRO-Tomato model under different dates of planting and cultivars.The experiment carried out (02nd Jul, 12th 22nd 02nd Aug, 11th 23rd 03rd Sep 13th Sep) as main plot treatments cultivars US 440 TO-3251 (Saaho) sub-plot treatments. The performed well in simulation phenology, biomass, fruit yield N uptake calibration for TO-3251.Calibration results revealed that perfectly predicted days anthesis no difference between simulated observed data both RMSE 0 days, further last picking,biomassat maturity, nitrogen 0.9 0.7 day, 285 435 kg ha-1, 545 ha-1 389 (dry weight), 6 5 respectively. calibrated used validate experimental found that, anthesisand picking excellent NRMSE value less than 10% cultivars,fair dry matter production 25% poor total greater 30% study more 30%.