华顶山云锦杜鹃林地土壤肥力分析

对华顶山上不同生长状况（正常开花与不正常开花）的云锦杜鹃林地土壤理化性质作分析比较，表明两林地土壤物理性较理想，土壤中有机碳，全氮，水解性氮及土壤有效态微量元素含量均在较适的范围之内；而不正常开花林地土壤中有效磷，速效盼望缺乏，氮磷钾比例失调，这可能是引起云锦杜鹃不能正常开花的原因之一。

Analysis on Soil Fertility of Rhododendron fortunei Woodland in Mount Huading

Analysis on physico-chemical properties of Rhododendron fortunei woodland soil colle-cted in ordinary and unordinary bloom demonstrated ideal physical properties, convenient content of organic carbon, total nitrogen, hydrolyze nitrogen and available trace element in the soil. But in unordinary growth, soil was deficient in available phosphorous, rapidly available potassium, and had inbalance of nitrogen, phosphorous and potassium content which caused unordinary bloom. Consequently, increasing content of available phosphorous and rapidly available potassium could improve bloom.