不同施肥处理对美国红橡木幼苗生长的影响

Effect of Fertilization on the Growth of Quercus rubra L.Seedlings

对红橡木幼苗进行了不同施肥处理试验,结果表明:施肥显著促进红橡木苗高和地径生长。不同处理比较,T4处理(基质拌入1%NPK复合肥)最好,其苗高、地径均较大,分别比对照高39.3%和33.3%,T1(N肥)处理次之,其苗高、地径比对照高28.6%和27.4%。不同施肥处理对红橡木苗高和地径生长的影响效应从大到小的顺序为:T4>T1>T2(基质拌入3%P肥)>T3(K肥)>CK(对照)。N元素是影响红橡木苗木生长的重要因子。

The experiment of fertilization scheme for red oak（Quercus rubra） seedlings was carried out.The experiment results showed fertilizing could promote the growth of the red oak seedlings significantly.T4 treatment（medium mixed with 1% NPK composite fertilizer） was the best scheme,which increased the height and basal diameter by 39.3% and 33.3% respectively;T1 treatment（N fertilizer） is second scheme which increased the height and basal diameter by 28.6% and 27.4%.The order of effect of fertilizing scheme on red oak seedlings growth is T4 T1 T2（medium mixed with 3%P fertilizer） T3（K fertilizer） CK.N element is the dominant factor on red oak seedling growing.;