Formerly International Journal of Basic and Applied Agricultural Research

Testing of InfoCrop model to optimize farm resources for mustard crop under tarai region of Uttarakhand

MANISHA TAMTA, RAVI KIRAN, ANIL SHUKLA, A. S. NAIN and RAJEEV RANJAN
Pantnagar Journal of Research, Volume - 19, Issue - 3 ( September-December, 2021)

Published: 2021-12-31

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Abstract


Field experiment was conducted at G. B. Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar (Uttarakhand) during the rabi season of the year 2014-15 for -three dates of sowing and five planting geometries of mustard crop to test the truthfulness and usefulness of InfoCrop model; and subsequently to optimize the farm resources and decision making. In this study InfoCrop v 2.1 model was used to derive genetic coefficients of the Indian mustard var. RGN - 73 followed by its validation. After successful calibration of the model, simulated and observed values of the experiment were found to be in a good agreement for seed and biological yield while model underestimated the ¬LAI. Results showed a reduction of seed yield from 1780.5 kg/ha to 1556.5 kg/ha for the delay in sowing from 22nd October to 11th November under field conditions and a similar trend of decrease in yield was also simulated¬. Probability analysis was carried to optimize date of sowing at three levels e.g., 90%, 75%, and 60% for the past five years (2010 -2014). The results showed that optimum sowing window for mustard under Pantnagar region lies in the month of October (22nd -28th October) giving a potential yield of up to 2091.7 kg/ha. The planting geometry of 30 × 10 cm and, 30 × 20 cm and 30 × 30 cm was found favorable to get maximum yield under late and timely sown conditions, respectively.


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