Simulating spring barley yields at regional level
2000
van Diepen, C. A. | Nejedlik, P. (Wageningen University and Research Centre, Wageningen (Netherlands))
Four districts in western Slovakia were chosen to simulate spring barley yields at two levels of phenological input data using a WOFOST crop growth model during the period of 1981/1995. Firstly the simulated inputs derived from meteorological data were used and secondly the real measured data were processed as inputs. Simulated yields were finally compared to the real statistical yields. The usage of real phenological data increases the accuracy of simulated yields by 5 to 10%. Simultaneously, the effect of rainfall network density on the simulated yields accuracy was tested, but the increase in the number of measuring points from four to fifty has not shown any significant increase in the simulated yields accuracy
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