黔西北高原核桃优株立地土壤的养分状况

Soil Nutrient State of Walnut Individuals Originated in the North-West Plateau of Guizhou Province

为指导贵州核桃园土壤管理与合理施肥,对黔西北高原产区的核桃优株立地土壤养分状况进行了分析与评价。结果表明,黔西北高原核桃优株立地土壤pH值适宜,有机质丰富,全氮、全磷、有效氮、有效磷、有效钾含量丰富,但土壤缺乏有效硼。核桃大树的栽培管理应注重增施有机肥和硼肥。

The soil nutrient of Juglans sigillata in the North-West Plateau of Guizhou province was analyzed and evaluated to guide soil management and rational fertilization of walnut orchard. The results show that soil pH value of walnut individuals is appropriate. The contents of organic matter, total N, total P, available N, available P and available K are rich. But the content of available B is insufficient. So increasing organic fertilizer and boron fertilizer should be minded for big seeding tree.