基于灰关联分析的黑龙江省粮食增产主要影响因子评价研究

Study on Main Impact Factors of Increasing Grain Yield Based on Gray Correlation Analysis in Heilongjiang Province

采用灰色理论中的绝对关联度和速率关联度,以黑龙江省粮食总产量为参考序列,其影响因子粮食播种面积、粮食单产、有效灌溉面积、化肥施用量、农药使用量及农机总动力等6个变量为比较序列,构建了黑龙江省粮食增产主要影响因子评价的灰关联分析模型,最后根据评价结果提出了黑龙江省粮食增产的建议。

By using absolute relational degree and velocity relational degree of grey theory, with total grain output for reference sequence and with six variables including grain sowing area, grain yield, the effective irrigation area, chemical fertilizer, pesticides and farm machinery total power and so on for comparison sequence, the grey relational analysis model of grain output main factor influencing e-valuation of Heilongjiang province is constructed. Finally grain output suggestions of Heilongjiang province are put forward according to the evaluation results.