沼液施肥对毛竹林竹子生长和土壤化学性状的影响

发布时间：2018-02-25 18:15

  本文关键词： 沼液 毛竹 新竹质量 土壤化学性状　出处：《东北林业大学学报》2017年09期 　论文类型：期刊论文

【摘要】：毛竹是我国最为重要的经济竹种,对区域农村社会经济发展和生态环境保护具有重要作用。为了解沼液施肥对雷竹新竹生长和土壤化学性质的影响,测定了全年一次性沼液施肥处理的试验毛竹林新竹质量、叶片SPAD值、鞭根根系活力和土壤基本化学性状指标。结果表明:沼液施肥毛竹林立竹密度变化影响不明显,而新竹数量、胸径、全高、枝下高、胸高壁厚及叶片SPAD值、鞭根根系活力与对照(CK)相比均显著提高;处理Ⅱ和处理Ⅲ,新竹胸径、全高、叶片SPAD值和鞭根根系活力差异不显著,且显著高于处理Ⅰ。沼液施肥显著提高了毛竹林土壤pH值、有机质质量分数和土壤主要养分质量分数;处理Ⅱ和处理Ⅲ,毛竹林土壤的pH值和全磷、速效磷、全钾、速效钾质量分数差异不显著,均显著高于处理Ⅰ。因此,沼液施肥可明显提高毛竹林新竹质量,改善毛竹林土壤基本化学性状,试验毛竹林适宜的沼液施肥量为45 t·hm~(-2)。
[Abstract]:Phyllostachys pubescens is the most important economic bamboo species in China, which plays an important role in regional rural social and economic development and ecological environment protection. The quality of new bamboo, SPAD value of leaves, root vigor of rhizome and basic chemical characters of soil were measured in the experiment. The results showed that the change of bamboo density in bamboo stand with biogas liquid fertilization was not obvious. However, the number, diameter at breast height, total height, height under branch, wall thickness of chest height, SPAD value of leaf, root activity of root of whip root were all significantly higher than those of control group, but there was no significant difference between treatment 鈪，

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