Study on the Forecasting Model of Grain Yield
Liu Zhen-zhon · Journal of Biomathematics · 2001
The cluster analysis is used to zone agroclimatic, based on the zoning result representative forecasting sits are selected and model for qualitative and quantitative forecast of yields corn, soybean and wheat are established. Including the model of the year's harvest tendency, stepwise regression periodical component model and multilevel recursion forecasting model. Statistical test and forecasting result show that the models can give accurate forecast of the yield the three crops significantly.