安县地区土壤养分含量对甘蓝型油菜产量的影响

摘要

Grey relational degree analysis was adopted to investigate the influence of soil nutrient content on Brassica napus L. yield in Anxian region making use of given data of 6 place. The results showed: important factors influencing rapeseed yield was alkali-hydrolyzed nitrogen and important factors influencing straw yield was available phosphorus in case of chronically fertilization; important factors influencing rapeseed yield was available potassium and important factors influencing straw yield was organic matter in case of unfertilization. According to the experimentation results,the recommendation fertilization of Brassica napus L. was proposed in Anxian region currently.%应用灰色关联分析分析法,利用6个试验点数据,研究了安县地区土壤养分含量对油菜产量的影响程度.结果表明,在习惯施肥的情况下,对油菜籽粒产量影响最大的是土壤碱解氮含量,对秸秆产量影响最大的是有效磷含量;而在不施肥的情况下,对油菜籽粒产量影响最大的是土壤有效钾含量,对秸秆产量影响最大的是土壤有机质含量.根据实验结果,对当前安县地区油菜施肥提出了一些建议.