海南油茶林土壤养分状况调查

为了给海南油茶的科学施肥提供参考,以五指山地区为重点调查了海南油茶林土壤的pH、有机质、全氮、碱解氮、全磷、有效磷、全钾和速效钾含量等养分状况。结果表明,海南油茶林土壤存在一定程度的酸化,碱解氮含量丰富,有机质、全氮和全钾含量中等,速效磷和速效钾含量偏低,全磷极度匮乏。海南油茶林土壤养分管理应根据土壤养分状况,实行配方施肥,防止土壤进一步酸化。

Soil Nutrient Status of Oil Camellia Forests in Hainan

In order to provide a reference to the scientific fertilization for Hainan oil camellia forest, the present study chose Wuzhishan city as the main region, and investigated the soil pH, organic matter, total nitrogen, alkali-hydrolyzable nitrogen, total phosphorus, available phosphorus, total potassium and available potassium status in Hainan oil camellia forest. The results showed that the soil of Hainan oil camellia forest was acidified, rich in alkali-hydrolyzable nitrogen, moderate in organic matter, total nitrogen and total potassium, short of phosphorus and potassium, and extremely scarce in total phosphorus on the whole. The management of Hainan oil camellia forest soil nutrient should base on the nutrient status, formulated fertilize, and prevent further acidification.