９９５～１９９７年在辽宁、北京、天津和山东等省市栗产区调查了栗园中栗树营养状况及养分分配规律。研究结果表明，凡每公顷产量超过２２５０ｋｇ的栗园，土壤有机质含量＞１２％；全Ｎ＞０６６％、水解Ｎ＞９６ｍｇ／１００ｇ；有效Ｐ＞０６ｍｇ／１００ｇ；有效Ｋ＞４ｍｇ／１００ｇ。叶片中Ｎ、Ｐ、Ｋ含量分别为２１％、０１％和０３５％。生殖器官Ｎ、Ｐ、Ｎ分别占５１８％、６１２％、７１０５％；叶分别占３０％、２５％和２０％，其余在枝干和根系中。Ｐ、Ｋ在花序果中分布高。 From 995 to 1997, the nutritional status and nutrient allocation of chestnut trees in chestnut fields were investigated in Liugong, Liaoning, Beijing, Tianjin and Shandong provinces. The results showed that the soil organic matter content> 12%, N> 066%, hydrolysis N> 96 mg / 100g, effective P> 06 mg / 100g K> 4mg / 100g. The contents of N, P and K in leaves were 21%, 01% and 035%, respectively. The reproductive organs accounted for 518%, 612% and 7105% of the total N, P and N, respectively. The leaves accounted for 30%, 25% and 20% respectively, while the rest were in the branches and roots. P, K is highly distributed in inflorescences.