【摘要】 本文利用灰色系统理论建立高产、稳产大豆品种合丰２５产量动态模型。其模型达到了一级水平。经检验该模型平均相对误差小于４．３％，最高精度达９８％以上。可见利用ＧＭ（１．１）模型预测大豆产量具有现实可信性。更多还原

【Abstract】 The gray development model of soybean variety Hefeng 25 was built in the paper. The model has reached grade A. The average relative error of the development model is less than 4.3%. The highest accurate level is more than 98%. So the development model CM( 1.1 ) may be used in forecasting soybean yield.更多还原