【作者】 谢志南； 庄伊美； 王仁玑； 许文宝；

【Author】 Xie Zhinan,Zhuang Yimei,Wang Renji,Xu Wenbao( Fujian Institute of Subtropical Botany, Xiamen 361006)

【机构】 福建省亚热带植物研究所；

【摘要】 福建亚热带果园土壤pH值与有效态养分含量关系密切.其中,柑桔、龙眼园的两者相关性表现较好,而荔枝园的相关性表现较差.相关关系回归方程的最佳函数类型因元素不同而异.pH值与代换态锰含量的关系符合幂函数方程;pH值与交换态钙、有效态铁含量的关系较符合指数函数方程;pH值与交换态镁、有效态锌含量的关系较符合线性函数方程.回归分析表明,果园土壤pH值小于5.00或大于6.50时,土壤有效态养分含量变化较大(尤其是代换态锰,交换态钙和有效态铁、铜).柑桔园及龙眼、荔枝园土壤PH值的最适范围分别为5.00～6.50及5.50～6.50.更多还原

【Abstract】 The correlation between siol pH and the content of available nutrients in selected soil from three kinds of orchards at subtropical zone in Fujian was studied.There are better correlation in citrus and longan orchards than in litchi orchard. The contents of exchangeable Mn, Ca, Mg and available Fe, Cu exhibited various regressive relationship with pH value. When pH value was < 5.00 or > 6.50, the contents of exchangeable Mn,Ca,Mg,available Fe,Cu are significantly changed. The optimum soil pH is 5.00~6.50 for citrus orchard,5.50~ 6.50 for longan and litchi orchards.更多还原