基于多元回归对粮食产量的研究

Study on Grain Yield Based on Multiple Regressions

为建立关于粮食产量的模型,并运用模型计算安徽省2020年化肥、农药使用量零增长时化肥利用率提高的百分点,利用时间序列分析预测得到了2015-2020年粮食产量、农药和化肥使用量,建立粮食产量与有效化肥使用量和农药使用量的回归模型,并利用其解决化肥、农药使用量零增长时化肥利用率提高的百分点,运用MATLAB进行求解,得出化肥利用率提高的百分点为7.3%。

In order to establish the food production model and calculate the percentage increase of fertilizer utilization when the use of chemical fertihzers and pesticides achieve zero growth in Anhui Province in 2020, we used the time series analysis approach to predict the grain yield and the use of pesticide and fertilizer in 2015 -2020. We established a regression model of grain yield and use of fertilizers and pesticides. Based on the model, we concluded that the utilization ratio of fertilizer is 7.3% solved by MAT- LAB.