基于灰色关联度分析的烤烟施肥优化方案

Optimization of Flue-cured Tobacco Fertilization Scheme by the Grey Relational Grade Analysis

采用灰色关联度分析法,对烤烟15个不同施肥处理的13项化学成分进行分析。结果表明,15个不同施肥处理中8号的加权关联度最大,说明8号的氮磷钾肥配比最佳。本试验处理下烤烟施肥最佳配比为氮肥62.84 kg/hm2,磷肥101.75 kg/hm2,钾肥197.43 kg/hm2。

The study was to get the best fertilization program for the flue-cured tobacco.The 15 different fertilizations on 13 kides of chemical composition of flue-cured tobacco were analyzed by the grey relational grade analysis.The result showed that the maximum weighted incidence degree treatment is the NO.8,so the best fertilization is the No.8.When the fertilizer rates were N at 62.84 kg/hm^2,P2O5 at 101.75 kg/hm^2,K2O at 197.43 kg/hm^2,the flue-cured tobacco program was the best in this experiment.