Volume 16, Issue 59 (spring 2012)
jwss 2012, 16(59): 45-57 |
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T. Honar, A. Sabet-Sarvestani, A. Sepaskhah, A. A. Kamgar-Haghighi1, Sh. Shams. Simulation of Soil Water Content and Yield of Canola Using CRPSM. jwss 2012; 16 (59) :45-57
URL: http://jstnar.iut.ac.ir/article-1-2197-en.html
URL: http://jstnar.iut.ac.ir/article-1-2197-en.html
, toorajhonar@yahoo.com
Abstract: (21656 Views)
In recent years, simulatiom modelling of yield has been the focus of attention for many researchers. Because, while reducing adminestrative costs, it can easily provide simulation models of different situations. In this study, while a subroutine on simulation of canola was added to CRPSM model, effect of different water treatments on canola was also investigated. In this research, canola (Talaye) under 5 irrigation treatments (full irrigation treatment during the growing period, water stress treatment at the spring re-growth stage, the flowering stage and pod formation, the grain formation stage and dry land treatment) was sown in complete randomized block designs at the college of Agriculture, Shiraz University during 2007-2008, and then the model was calibrated based on available information (soil-location -plant-water). Review of statistical indicators between simulated and measured yield show high accuracy in the estimation of crop yield (R2=0.98) and soil water content. The result of model validation with independent data series also showed that the result of soil water content is desirable except in dry treatment, and the corrolation coeficient between simulated and measured crop yield (R2=0.98) was acceptable.
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