Effects of three elements (nitrogen, phosphorus and potassium) on the growth of Ryukyu Pine (Pinus luchuensis Mayr) 1-0 seedlings (Department of Forestry)

摘要

In this paper, the authors reported the effects of three elements (nitrogen, phosphorus and potassium) on the growth of Ryukyu Pine (Pinus luchuensis Mayr) 1-0 seedlings grown under five different conditions of three elements. The order of main shoot length was NPK> PK, NK, NP> Non, leaves weight was NPK> NP> PK> NK> Non, and top weight was same with leaves weight. Three elements have high effects on the growth of Ryukyu Pine seedlings and phosphorus has most effective element among them.