2年生指数施肥杉木实生容器苗试验林测定分析

Measurement and Analysis of Two-year-old Container Seedling of Cunninghamia lanceolata Experimental Forest with Exponential Fertilization

摘要: 为跟踪研究不同施肥处理杉木容器苗造林生长2年效果，2021年2月在福建省沙县官庄国有林场开展3个指数施肥, 2个常规施肥和对照（CK）不施肥处理试验林树高和地径测定，研究结果表明：指数施肥E120（120 mg/株）处理树高、地径生长表现最优，其次是指数施肥E60（60 mg·株^–1）处理，造林生长2年树高均值分别为2.22 m和2.15 m，相对CK分别增长了43.8%和40.6%；地径均值分别为40.41 mm和38.29 mm，相对CK分别增粗了49.7%和47.7%。

Abstract: In order to study the effects of different fertilization treatments on container seedling growth of Cunninghamia lanceolata for 2 years, the tree height and ground diameter were measured in Guanzhuang state-owned forest farm, Shaxian County, Fujian Province in February 2021. The fertilization treatments contained three exponential fertilization treatments, two conventional fertilization treatments and CK treatments without fertilization. The results showed that the exponential fertilization treatment E120 (120 mg/plant) had the best growth performance in tree height and ground diameter, followed by exponential fertilization treatment E60 (60 mg/plant). Compared with CK, the average height growth of trees in two years of afforestation was 2.22 m and 2.15 m, which increased by 43.8% and 40.6% respectively. The mean ground diameter was 40.41 mm and 38.29 mm, which was 49.7% and 47.7% thicker than CK.