作　　者： ; ; ; (祁万宜）; (应中华）; (李道新）;

机构地区： 湖北省宜昌市林业科学研究所宜昌443111

出　　处： 《湖北林业科技》 2007年第4期12-17,共6页

摘　　要： 根据在鄂西大老岭林场进行的日本落叶松中龄林4种施肥量、3种N与P配比、2种施肥次数的3a试验效应研究,结果表明:不同施肥量、不同N、P比、不同施肥次数对日本落叶松中龄林生长影响不显著;但14a生B1材积生长比其它平均材积提高28.4%。施肥组合8(A1B1C1)各年生长量均高于其它组合的生长量,其材积比其它平均材积提高32.8%。 According to the study on 3 years test effects, fertilization applied over 4 kinds of measurement, 3 kinds of N and P composition and 2 kinds of fertilization times for fertilization of medium-aged forest of Larix kaempferi in Dalaoling Forest Farm of Hubei were carried out. The results show that different fertilized quantity, different N and P composition and different fertilized times are not significant in effect of medium-aged forest growth of Larix kaempferi, however, the 14 years old with B1 volume growth is improved 28.4% than other average volume. The growth of fertilization composition 8 （A1 B1 C1 ） in each year is higher than the growth of other ones, and its volume is improved 32.8% than other average volume.

关 键 词： 日本落叶松 纸浆用材林 生长量 经济效益分析

领　　域： [农业科学] [农业科学]