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对银杏不同生长发育时期种子中氮、磷、钾、钙、镁等８种矿质营养元素含量的动态变化研究结果表明：银杏种子中氮、磷、钾、钙、镁５种大量营养元素的含量变化，随时间呈从高到低的规律性变化，但不同元素间变化的幅度不同，整个生长季中４月底至５月中旬、５月下旬至６月上旬是银杏种子中营养元素含量变化较大的两个阶段．成熟种子中８种主要营养元素含量分别是氮１．０４％、磷０．１３％、钾１．４９％、钙０．１３％、镁０．０９％、锰３．２２ｍｇ·ｋｇ－１、锌２７．５５ｍｇ·ｋｇ－１、铁１０．０ｍｇ·ｋｇ－１
The results showed that the contents of nitrogen, phosphorus, potassium, calcium and magnesium in Ginkgo biloba seeds were significantly increased Change, with the time from high to low regular changes, but the different changes in the amplitude of different elements throughout the growing season in late April to mid May, late May to early June is the ginkgo seed nutrient content changes in more Big two stages. The content of 8 main nutrients in mature seeds were 1.04% of nitrogen, 0.13% of phosphorus, 1.49% of potassium, 0.13% of calcium, 0.09% of magnesium and 3.22 mg · kg-1 of manganese, Zinc 27.55 mg · kg-1, iron 10.0 mg · kg-1