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采集广东省荔枝主产区果园土壤样本63个,采用全国第二次土壤普查土壤养分分级标准来评价荔枝果园土壤养分肥力现状。结果表明,荔枝果园土壤有机质、碱解氮、有效钙含量均较低,速效钾为中下,有效磷、有效硫和有效铁含量较高,有效锰、有效锌含量为中上水平,有效镁和有效硼为低水平。整体上荔枝果园土壤养分肥力较低且不平衡。不同荔枝主产区土壤养分肥力状况差别很大,硼是荔枝园土壤最普遍缺乏的元素,钙、镁次之。针对广东荔枝园土壤养分肥力较低且不平衡的原因提出了相关防治对策。
Sixty-three orchards of orchard soil samples were collected from the main producing areas of litchi in Guangdong Province, and the soil nutrient status of the litchi orchard was evaluated using the soil nutrient classification standard of the second national soil survey. The results showed that the content of soil organic matter, available nitrogen and available calcium were lower in litchi orchard, available potassium was middle and lower, available phosphorus, available sulfur and available iron were higher, available manganese and available zinc were middle and upper level, available magnesium And the effective boron is low level. On the whole, litchi orchard soil nutrient fertility is low and unbalanced. Different nutrients in the main producing areas of litchi soil fertility vary greatly, boron is the most common Litchi Park soil elements, followed by calcium and magnesium. Aiming at the reasons of low and unbalanced soil fertility in litchi orchards in Guangdong, some countermeasures were put forward.