Utilizing the CROPGRO Simulation Model to Optimize Management Practices for Achieving High Soybean Yields


  • Ankita Negi Krishi Vigyan Kendra Baghpat, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh (250 110), India https://orcid.org/0009-0008-8402-1824
  • Kuldeep Rana Forestry and Ecology Department, Indian Institute of Remote Sensing, Dehradun, Uttarakhand (248 001), India
  • Rajeev Ranjan Dept. of Agrometeorology, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, Uttar Pradesh (263 145), India




CROPGRO-Soybean model, calibration, crop management practices, validation


A study was conducted during the kharif (June–September) season of 2018 at G.B.P.U.A.&T., Pantnagar, Uttarakhand, India to calibrate and validate the CROPGRO-soybean model for Terai region and determine the optimal management practices for soybean variety PS1347. The experiment followed a Two Factorial Randomized Block Design, involving two fertilizer treatments with three sowing dates replicated thrice. The CROPGRO model was calibrated and validated using the field data of 2018 and 2017, respectively. The RMSE% between the observed and simulated values of different crop stages and yield indicators were between 3.24% and 14.22%. Subsequently, the crop yield for different management practices was also simulated. The model encompassed yield simulations for various management practices viz., six tillage methods, five fertilizer treatments, nine sowing dates, and six irrigation levels. To achieve error minimization, soybean yield was simulated for four consecutive years (2015–2018) under various management practices, and the data was averaged. The simulation results indicated that the optimal management practices for achieving the highest soybean yield include sowing the seeds on the 20th June after implementing a tillage regimen involving three ploughings and two harrowing operations and further nourishing the crop with fertilizer dose of N:P:K:S::25:60:40:20 and applying 90 mm of irrigation. These findings will aid in optimizing management practices and developing sustainable and efficient approaches to achieve higher soybean yields with minimal inputs.


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How to Cite

Negi A, Rana K, Ranjan R. Utilizing the CROPGRO Simulation Model to Optimize Management Practices for Achieving High Soybean Yields. IJBSM [Internet]. 2023 Sep. 17 [cited 2024 May 20];14(Sep, 9):1214-2. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/4946