柑橘、龙眼园土壤有机质与有效性养分质量分数的相关性

Correlation between the mass fractions of soil organic matter and available nutrients in citrus and longan orchards

对福建省 781个柑橘园和 315个龙眼园的土壤进行分析 .结果表明 ,这 2种果园多数的土壤有机质质量分数处于良好水平 ;土壤有机质质量分数与有效性养分质量分数关系密切 ;土壤有效性养分质量分数随有机质质量分数的增加而增加 ;柑橘园与龙眼园土壤的有机质质量分数分别为 15- 35和 10 - 30 g· kg-1,其土壤有效性养分质量分数较为适宜 .因此 ,上述 2种果园的土壤有机质质量分数可作为较为适宜范围 .

The soils of 781 citrus orchards and 315 longan orchards in Fujian Province were analysed. The results were as follows: the mass fractions of the most of soil organic matter in these orchards were optimum; there were significant correlation between the mass fractions of soil organic matter and available nutrients; the mass fraction of available nutrients increased with that of soil organic matter; the optimum mass fraction of soil organic matter was 15-35 g·kg -1 for citrus orchard and 10-30 g·kg -1 for longan orchard, and the mass fraction of available nutrients was optimal. So the mass fractions of soil organic matter of citrus and longan orchards were suitable.