| 摘要: |
| 为了探究不同基质配比对顶果木 Acrocarpus fraxinifolius 幼苗生长的影响, 以顶果木实生苗为
实验材料, 以黄心土为 CK, 设计 10 种不同配比的基质进行育苗, 半年后, 通过对基质的物理、 化学性
质和顶果木幼苗的生长发育指标 (生物量、 冠幅、 叶长 (宽)、 根长、 苗高、 地径等) 进行比较分析和主
成分分析, 筛选出适合顶果木幼苗生长的基质组合。 研究结果表明泥炭土和轻基质中富含的有机质和矿
质养分能有效促进顶果木的营养生长, 而合适比例的重基质 (黄心土) 则有利于生物量的积累。 综合来
看, 在顶果木幼苗的营养生长方面, T7 (黄心土 ∶ 泥炭土 ∶ 混合轻基质 = 4 ∶ 3 ∶ 3) 配方的基质表现最优
秀; 而在生物量积累情况方面, T6 (黄心土 ∶ 泥炭土 ∶ 混合轻基质= 4 ∶ 2 ∶ 4) 配方的基质表现最优秀。 |
| 关键词: 顶果木 基质配比 理化性质 营养生长 主成分分析 |
| DOI： |
| 分类号: |
| 基金项目:广东省地方标准制 (修) 订项目 “顶果木播种育苗技术规程” 资助。 |
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| Effect of Different Substrate Ratios on the Growth of Containerized Seedlings of Acrocarpus fraxinifolius |
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Zhang Zhiwei1, Hu Bing1, CHEN Jinhui2, ZHAO Chuyu1, CHEN Yanfei1, LU Zhaohua1
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1.Research Institute of Tropical Forestry, Chinese Academy of Forestry;2.College of Tropical Crops Hainan University (College of Agriculture and Rural Studies、College of Rural Revitalization)
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| Abstract: |
| In order to investigate the effects of different substrate ratios on the growth of seedlings of Acr
carpus fraxini
o-
folius, the seeded live seedlings of A. fraxinifolius were used as test materials, and yellow heart
soil was used as CK to design 10 different ratios of substrates for seedling nursery, and through comparative analyses and principal component analyses of the physical and chemical properties of the substrates and the growth
and development indexes of the seedlings of A. fraxinifolius ( biomass, crown width, leaf length ( width),
root length, seedling height, and diameter of the ground, etc. ), the substrate combinations were screened to
be suitable for the growth of seedlings of A. fraxinifolius. The results were summarized as follows seedling
growth substrate combinations. The results showed that peat soil and light substrate rich in organic matter and
mineral nutrients could effectively promote the nutritive growth of A. fraxinifolius, while the appropriate proportion of heavy substrate (yellow heart soil) was favorable to the accumulation of biomass. In summary, the T7 (yellow heart soil ∶ peat soil ∶ mixed light substrate = 4 ∶ 3 ∶ 3) formulation was the best substrate in terms of
nutrient growth of A. fraxinifolius. The T6 ( yellow heart soil ∶ peat soil ∶ mixed light substrate = 4 ∶ 2 ∶ 4)
formulation was the best substrate in terms of biomass accumulation. |
| Key words: Acrocarpus fraxinifolius substrate ration physicochemical properties vegetative growth principal component analysis |
