不同施肥措施对青杨人工林生长的影响

Effects of Different Fertilization Measures on Growth of Populus cathayana Plantation

为了明确西宁市青杨人工林生长最佳的抚育施肥措施,以南山青杨纯林为研究对象,测定不同施肥措施下青杨的主要生长指标,对数据进行单因素方差分析。结果表明,不同的施肥处理对青杨各生长指标的影响不同,有机肥与复合肥配施处理与空白对照存在极显著差异(P<0.01),能更好地促进青杨树高、胸径、冠幅及蓄积量的增加。所以,在施肥量相同的情况下,对青杨配施有机肥和复合肥更有利于其生长。

In order to clarify the optimal breeding and fertilization measures of Populus cathayana plantation in Xining City, taking Populus cathayana pure forest in Nanshan Mountains as research objects,the main growth indexes of Populus cathayana under different fertilization measures were determined.Result shows that different fertilization treatments have different effects on the growth indexes of Populus cathayana , there is a significant difference between the application of organic fertilizer and compound fertilizer &blank control ( P<0.01 ), which could better promote the increase of tree height, chest diameter, canopy width & accumulation amount of Populus cathayana . Therefore, under the same amount of fertilizer, it is more beneficial to apply organic fertilizer and compound fertilizer to Populus cathayana when applying fertilizer.