Effect of N Element on the Growth of Young Cunninghamia lanceolata Forest
To investigate the effect of N element on the growth of young Cunninghamia lanceolata forests,in 2021,the fertilization experiments on young Chinese fir forests are conducted.The fertilizer is urea,and four fertiliza-tion treatments are used,namely 30g/plant,60g/plant,90g/plant,and no fertilization control(CK).The results indi-cate that:the relative CK of height and diameter of Cunninghamia lanceolata trees increased by 0.2％and 38.3％respectively under the fertilization treatment of 30g/plant;The relative CK of height and diameter of Cunning-hamia lanceolata trees increased by 7.6％and 54.2％respectively under the fertilization treatment of 60g/plant;The 90g/plant fertilization treatment increased the relative CK of Cunninghamia lanceolata trees by 6.3％and 62.2％,respectively.
NETL
NSTL
万方数据
