| 摘要: |
| 选用城市树木修剪枝粉碎获得的新鲜木块,作为一种土壤改良添加物进行形态、盛花期、叶片相对叶绿素值（SPAD）比较试验. 研究发现,添加新鲜木块显著增加了土壤的总孔隙度、非毛管及毛管孔隙度（Ft=311.502, Fnc=226.41, Fc=92.384, p<0.01）,显著改变了牡丹的盛花期、株高年增量、冠幅、基径年增量、叶片SPAD,添加新鲜木块（边长为6 cm）的体积分数为60%时得到最优结果. 研究结果为南方牡丹栽培提供了一种具有良好的透气性、保水性、低成本、无副作用、绿色环保等优良特性的土壤改良途径. |
| 关键词: 牡丹 新鲜木块 正交试验 极差分析 主成分分析法 |
| DOI：10.3969/J.ISSN.1000-5137.2024.03.010 |
| 分类号:S688 |
| 基金项目:上海市科技计划项目（21DZ1202000,21DZ1202003）；上海市绿化和市容管理局科学技术项目（G212409）；上海市园林工程有限公司科研项目（FG201900188） |
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| Effects of adding fresh wood chips on the cultivated soil and growth of peony |
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WU Duorun1, GUO Chenbing1, HU Yonghong2, YU Shuiyan2, QIN Jun2, WANG Hongbing1
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1.College of Life Sciences, Shanghai Normal University, Shanghai 200234, China;2.Shanghai Chenshan Botanical Garden, Shanghai 201602, China
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| Abstract: |
| This study took the fresh wood chips, obtained from the pruning and crushing of urban trees, as a soil improvement additive to compare the morphology, full-bloom stage and leaf relative chlorophyll value （SPAD）, and found that the addition of fresh wood chips significantly increased the total porosity, non-capillary and capillary porosity of the soil （Ft=311.502, Fnc=226.41, Fc=92.384, p<0.01）, and significantly changed the flowering period, annual increment of plant height, crown width, annual increment of basal diameter, and SPAD of leaves of peony. The optimal improvement formula for adding 60% of 6 cm fresh wood chips was proposed. The study results provide a soil improvement method with good air permeability and water retention, low cost, no negative effects, and green environmental protection for the cultivation of southern peony. |
| Key words: Paeonia suffruticosa fresh wood chips orthogonal test extremum difference analysis principal component analysis |
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