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对广西柑桔低产园0～30cm土壤样品10个进行了土壤pH、有机质及有效氮、磷、钾、钙、镁、锌、硼含量测试分析,同时对10个柑桔叶片样品的营养元素的含量进行测定。结果表明,柑桔低产园土壤pH偏低,平均为5.26;土壤有机质、速效氮和钾含量比较丰富,平均含量分别为30.2gkg-1,117mgkg-1和164mgkg-1;土壤有效钙、镁、锌、硼缺乏比较严重;柑桔叶片氮、磷含量处于适量范围,含钾量为适量或高量,而叶片缺乏中微量营养元素钙、镁、锌和硼;柑桔园土壤pH、有机质与多个大中微量元素有效养分之间存在显著或极显著正或负相关关系,柑桔叶片氮、钾、钙、镁、锌、硼含量与土壤多种养分含量之间存在一定的相关性。
The soil pH, organic matter, available nitrogen, phosphorus, potassium, calcium, magnesium, zinc and boron in 10 citrus lowland garden 0 soil samples were tested and analyzed. At the same time, the nutrient elements Content was measured. The results showed that the pH value of citrus low-yielding soil was low, with an average value of 5.26. The contents of soil organic matter, available nitrogen and potassium were relatively abundant with average contents of 30.2gkg-1, 117mgkg-1 and 164mgkg-1, respectively. , Boron deficiency is more serious; citrus leaves nitrogen and phosphorus content in the appropriate range, the amount of potassium is moderate or high, and leaves lack of trace elements of calcium, magnesium, zinc and boron; citrus orchard soil pH, organic matter and more There were significant or very significant positive or negative correlations among available nutrients in middle, big, middle and trace elements. The contents of N, K, Ca, Mg, Zn and B in citrus leaves had some correlation with various nutrient contents in soil.