Maize dwarf Mosaic was predicted using growth model forecasting method, Markov chains forecasting method and regression model forecasting method. And yield loss of MDM was assessed.

利用生长模型预测法、马尔科夫链预测法和回归模型预测法对玉米矮花叶病发生流行进行预测，并对玉米矮花叶病损失估计进行了初步探讨。

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Descusses the logarithmic correction factors of general multiplicative regression model and percent bias of unadjusted predicted value. The pool of correction factors is proposed.

文中讨论了一般乘法回归模型的对数改正系数和未校正预测值的相对偏差，提出了对数改正系数的合并问题。

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With regression model total grape acreage, fruiting acreage, grape yield, wine production and total economic capacity of Ningxia were analyzed and predicted.

对葡萄种植面积、采收面积、单位面积产量、总产量、葡萄酒产量及葡萄酒产业总产值进行分析和预测。

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