有机无机复混肥使用量对马尾松幼龄林生长及单株材积的影响

Effects of Different Fertilizer Types on Pinus massoniana Growth and Single Timber Volume

摘要: 选取8 a生马尾松人工林,研究了有机无机复混肥使用量对树高、胸径及单株材积的影响。结果表明,每株施用2.0 kg有机无机复混肥效果最佳,胸径、树高及单株材积连年生长量均达到了最大值。在施肥第4年,胸径、树高及单株材积连年生长量分别是对照的1.61倍、1.95倍、5.4倍。根据本研究结果,在对马尾松幼龄林施肥过程中,可以考虑采用有机无机复混肥。

Abstract: The 8 year old Pinus massoniana plantation was selected to conduct research on effects of different fertilizers on tree height,rice stem and individual volume.The results showed that the effect of applying 2.0 kg of organic and inorganic mixed fertilizer was the best.The diameter at breast height,tree height and individual volume in successive annual growth reached the maximum.4 years after fertilization,the diameter at breast height,tree height,and several annual growth of individual volume were resp ctively 1.61 times,1.95 times,and 5.4 times as compared with the control.According to the results of this study,in the process of fertilization of Pinus massoniana sapling forest,the use of organic and inorganic mixed fertilizer might be considered.