Abstract:
Four different fertilizers were applied for conducting 15 months of Szemao pine tree height and ground diameter growth test. The results showed that among the four different fertilizers,treatment 1 could get a better tree height and ground diameter growth,namely the processing of 200 g fertilizer, but the offect of treatment 4 was poor,namely,no fertilizcr was used. 4 treatments displayed extremely significant differences. Within the scope of the maximum rate of 200 g,tree height and ground diameter would increase with the increase of fertilizer rate.