Simulating groundnut (Arachis hypogaea L.) phenophase and yield in Kerala with DSSAT- CROPGRO model

K.S. Vinu, P. Shajeesh Jan, B. Ajithkumar, Arjun Vysakh

Abstract


An experiment was conducted to simulate groundnut (Arachis hypogaea L.) phenophase and yield by using the DSSAT- CROPGRO model. The experiment was carried out at Instructional farm Vellanikkara, Kerala Agricultural University with four dates of planting, viz., November 1st, November 15th, December 1st, and December 15th and three irrigation levels (IW/CPE 0.6, 0.8 and 1.0) with the variety TNAU CO-6. The phenological data collected from the field experiment during 2019-2020 was used for calibrating the genetic coefficient for groundnut variety TNAU CO-6. The DSSAT CROPGRO peanut model was used in the simulation studies. The pod yield, shelling percentage and phenological stages as simulated by model were compared with the observed data. The result revealed that, simulated values of pod yield, physiological maturity, days to germination, anthesis and shelling percentage were in good agreement with observed yield.


Keywords


Crop weather modeling

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References


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A KAU publication [CODEN: JTAGEI; ISSN 0971-636X; eISSN 0973-5399]