【摘要】 根据1977～1985年关中灌区西部的小麦赤霉病的病情和气象资料,经电子计算机进行逐步回归分析,建立了11个适于该地区小麦赤霉病流行的“最佳”预测方程,分别用于中、长期或短期病情预测。其中6个方程采用气象因子的实测值,5个方程采用其预测值。用历史资料的检验和初步试用,表明这些预测方程具有一定的灵敏性和可靠性。更多还原

【Abstract】 Bated on the historical data from 1977 to 1985, 11 multiple regression equations were developed by using computer for forecasting wheat head blight (Fusarium graminearum Schw. ) in irrigated area of Central Shaanxi.In the 6 equations observed values of meteorological factors were used,and in the other 5 equations the esti-mated ones were adopted. Through testing by the historical data and preliminary using it was demonstrated that these equations had both satisfactory sensitivity and validity.更多还原