福建丰产荔枝园土壤微量元素含量的研究

与我国红壤平均水平相比，福建丰产荔枝园土壤有效态锌、钼及水溶态硼含量较高，而活性锰及有效铜含量较低；土壤全锌、锰、钢量亦较低。在土壤ｐＨ４．５４—８．７６时，ｐＨ值与有效态钼含量呈较显著正相关，而与代换态锰、水溶态硼、有效态铁含量呈显著或极显著负相关。本文初步提出福建荔枝园土壤微量元素含量的适宜指标，可供土壤营养诊断及平衡施肥之参考。

Contents of Trace Elements in Soil of Productive Litchi Orchards in Fujian

The analytic results indicated that the contents of available Zn, Mo andwater-soluble B in the soil of productive litchi orchards in Fujian were higher than thatin the red soil in China, while the contents of active Mn, available Cu and total Zn,Mn,Cu in the soil of productive litchi orchards were lower than that in the red soil in China.When soil PH was 4. 54-8. 76, relatively significant positive correlation were found between the contents of available Mo and pH values, there was significant or very significant negative correlation, however, between the contents of exchangeable Mn, watersoluble B, available Fe and pH values in soil. The preliminary studies suggested that the values of the optimum ranges of trace elements in the soil of litchi orchards in Fujianmay provide the parameters of nutrition diagnosis and balanced fertilization for the soil.