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对日本落叶松幼林进行复合肥施肥试验 ,4年定期观测和系统分析结果显示 :施肥对苗木生长效果显著 ,能有效促进幼林地径、树高和冠幅的生长量 ;肥效具有明显的后滞现象 ;不同施肥剂量之间差异不显著
Fertilization experiment of compound larvae was carried out on the young larch in Japan. The results of 4-year regular observation and systematic analysis showed that fertilization had significant effect on seedling growth and could effectively promote the growth of young plantation diameter, tree height and crown width. Phenomenon; there was no significant difference between different fertilization doses