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本文研究了不同叶量、负载量对银杏枝、叶、种实中Ｎ、Ｐ、Ｋ含量的影响。结果表明：１．叶量、负载量增大，６月份以前枝中Ｎ、Ｐ、Ｋ含量提高，而６月份以后，枝、叶中Ｋ含量仍随负载量增大而升高；２．叶中Ｎ、Ｐ、Ｋ含量三者间均有极显著正相关，短枝中仅Ｎ、Ｐ相关达显著水平，枝与叶、枝与种实中的Ｎ、Ｐ含量间分别有极显著正相关和较显著（α＝１０％）以上正相关。
In this paper, the effect of different leaf amount and loading on the contents of N, P, K in the branches, leaves and seeds of ginkgo was studied. The result shows: 1. The amount of leaf and the amount of loading increased, and the contents of N, P and K in the branches increased before June. After June, the content of K in branches and leaves increased with the increase of the load. There were significant positive correlations among N, P and K contents in leaves, only N and P correlations were significant in short branches, and N and P contents in branches, leaves and branches were extremely significantly positive Correlation and more significant (α = 10%) or more positive correlation.