粉煤灰复田立地欧美杨施肥效应研究  

Study on the Effect of Fertilization on the Growth of P.×euramericana in Reclaimed Area by Coal Ash

作　　者：王世绩[1,2] 刘雅荣[1,2] 刘建伟[1,2] 张建国[1,2] 冷国友[1,2] 周树理[1,2] 

机构地区：[1]中国林业科学研究院林业研究所 [2]安徽省淮北矿务局林业处

出　　处：《林业科学研究》1996年第5期492-497,共6页Forest Research

摘　　要：对粉煤灰复田立地上欧美杨人工幼林施肥效应进行了研究，结果表明：①Ｎ、Ｐ、Ｋ和绿肥肥效均极其显著。相比较而言，Ｎ肥和绿肥肥效高于Ｐ、Ｋ肥。Ｎ、Ｐ、Ｋ和绿肥肥效显著的原因主要是由于立地土壤养分极缺之故；②连续４ａ施肥，最大肥效出现在造林的当年。与对照相比，１５个施肥处理林分树高和胸径在第４年时比对照分别提高４７．７％～７１．７％和３７．７％～７１．７％，表明施肥处理肥效极其显著；③粉煤灰复田立地欧美杨人工幼林最佳施肥方案为：Ｎ（１５０ｇ／株）＋Ｐ（３２．７７５ｇ／株）＋Ｋ（６２．２５ｇ／株）＋（绿肥２０ｋｇ／株）。Study on the effect of fertilization on the growth of juvenile plantation of P.×euramericana in reclaimed area by coal ash was conducted. The results show:(1)Both the effect of applying N、P、K and green manure are significant,comparatively speaking,the effect of application of N and green manure is better than that of applying P、K,the reason why the effect of fertilization is good is that the nutritional elements in this kind of soil is very poor. (2)If the fertilization continued in 4 successive years,the best effect appeared in the current year of cultivation. If a comparison was made with control,in the 15 treatments,the tree height and DBH of the plantation in the 4th year were higher than those of the control by 47.7%～71.7% and 37.3%～71.7% respectively,which showed the effect of fertilization was significant.(3)The best scheme for fertilization is N(150 g/tree)+P(32.775 g/tree)+K(62.25 g/tree)+green manure(20 kg/tree).

关 键 词：粉煤灰 复垦 欧美杨 施肥 

分 类 号：S792.119[农业科学—林木遗传育种]