Study on the Effect of Fertilization on Young Trees of Casuarina Inoculated with Frankia

The fertilization experiment for young Casuarina equisetifolia plantation inoculated with Frankia was conducted. The results showed that the effect of fertilization of C. equisetifolia young trees inoculated with Frankia were significant on trees growth,the mean tree height,DBH and volume for the application fertilizer were 0.8%～57.1%,10.1%～55.3% and 0.88014～2.81704 m3·hm-2 ·a-1 than that of the control treatment (no fertilizer treatment). The optimum recipe were the N100P250K37.5 treatment. P fertilizer was a primary factor for growth at the first and second year,N fertilizer was a primary factor for growth at the third and fourth year. The N contents in foliage were also obviously different among the treatments.