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Crop Yield Forecasted Model Based on Time Series Techniques



Crop Yield Forecasted Model Based on Time Series Techniques



Journal of Northeast Agricultural University (English Edition) 19(1): 73-77



Traditional studies on potential yield mainly referred to attainable yield: the maximum yield which could be reached by a crop in a given environment. The new concept of crop yield under average climate conditions was defined in this paper, which was affected by advancement of science and technology. Based on the new concept of crop yield, the time series techniques relying on past yield data was employed to set up a forecasting model. The model was tested by using average grain yields of Liaoning Province in China from 1949 to 2005. The testing combined dynamic n-choosing and micro tendency rectification, and an average forecasting error was 1.24%. In the trend line of yield change, and then a yield turning point might occur, in which case the inflexion model was used to solve the problem of yield turn point.

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Accession: 036710386

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DOI: 10.1016/s1006-8104(12)60042-7


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