天台黄山松种子园土壤肥力评价与改良措施

Evaluation of Soil Fertility in Pinus taiwanensis Seed Orchard and Improvement Measures in Tiantai of Zhejiang

分析结果表明，天台华顶林场黄山松种子园土壤肥力平均水平中等偏下，尤其是有机质和氮的含量偏低，而氮的含量与针叶叶绿素的含量密切相关，为促进黄山松植株的生长，该种子园在加强水平带整修、开好竹节沟保水保土的同时，应着重套种绿肥、增施土杂肥，施化肥则以Ｎ．Ｐ．Ｋ混合肥或复合肥为好。

Analysis showed that mean soil fertility in pinus taiwanensis seed orchard in Tiantai Huading Forest Center,zhejiang province was middle class,especially,organic matter and N content was low.But N content had close relation with chlorophyll content in needles.To accelerate P.taiwanensis growth,interplanting green manure,fertilizing miscellaneous indigenous manure,mixed N.P.K.or composite fertilizer were proposed as measure.