广西维都林场桉树人工林土壤养分状况与科学施肥研究

Soil Nutrient and Scientific Fertilization of Eucalyptus Plantation in Weidu Forest Farm of Guangxi

对位于广西来宾市的维都林场桉树人工林进行土壤取样,并对土样进行检测。结果表明,维都林场桉树林地土壤酸性较强;养分含量随着土层厚度加深而下降,总体呈现"少磷,缺钾,铜硼匮乏"特征;除土壤pH值与土层厚度外,其余土壤养分指标间存在较好的正相关关系。建议结合植株营养诊断,采取测土配方施肥,侧重施用复合肥,及时补充铜、硼等微量元素。

Soil of Eucalyptus plantation in Weidu Forest Farm of Laibin City was sampled and studied.The results showed that the soil acidity of Eucalyptus forest land was strong and the nutrient content decreased with the depth of soil layer which represented absent phosphorus,potassium,copper and boron.There was a good positive correlation of the other soil nutrient indexes except soil PH value and soil thickness. This paper suggested to adopt testing soil for formulated fertilization combined with plant nutrition diagnosis,and pay attention to the application of compound fertilizer and the supplement of copper and boron.