Manual to illustrate applications of the revised sorghum simulation model, SORGF
1986
Huda, A.K.S. | Virmani, S.M.
The revised sorghum simulation model, SORGF, was used to demonstrate the applications of crop simulation models in the semi-arid tropics. Comparison between simulated and observed grain yield data showed that the SORGF model can be used to estimate sorghum yields with reasonable accuracy before harvest. Responses of sorghum to drought-stress and to changes in plant density were simulated. The correlation coefficient between observed and simulated sorghum grain yield data pooled over 5 levels of plant density and 2 cultivars was 0.91. The correlation coefficient between observed and simulated sorghum grain yield data pooled over 2 water treatments, 2 cultivars, 2 seasons was 0.81. The model was used to compute the probabilities of simulated available soil water at the end of rainy season, runoff amounts, sorghum grain yield and the requirements of N-fertilizers based on 30 years of climatic data for 4 locations in India
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