| 曾辉，秦武明，蒋华，吕曼芳，郑小川，阳纯.施肥对顶果木苗木生长及营养元素积累与分配的影响[J].广东农业科学,2013,40(17):60-63 |
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施肥对顶果木苗木生长及营养元素积累与分配的影响 |
| Effects of fertilization on seedling growth，accumulation and distribution of nutrient elements of Acrocarpus fraxinifolius |
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| DOI： |
| 中文关键词: 顶果木 施肥 生长 生物量 营养元素 |
| 英文关键词: Acrocarpus fraxinifolius fertilization growth biomass nutrient elements |
| 基金项目: |
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| 摘要点击次数: 1412 |
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| 中文摘要: |
| 通过研究顶果木在不同施肥处理下的生长与养分元素分配情况得出，施肥对顶果木地径生长影响不显著袁，对苗高生长影响显著，地径最高生长量（0.319 cm）为施复混肥的处理，苗高最大生长量（16.8 cm）为施磷肥的处理；不同施肥处理单株根、茎生物量差异显著，叶生物量差异不显著，施复混肥生物量最高（27.27 g/株）；施肥处理的顶果木根冠比低于空白对照（0.34）；施肥均可促进植物N元素累积，其中叶片贮藏量最大，对P 元素的积累较少，对K元素的累积具有一定选择性，单株干物质累积的营养元素大小排序为N>K>P；不种元素袁平衡施肥对顶果木生长具有促进作用。 |
| 英文摘要: |
| The growth and nutrient allocation of Acrgetcarpus fraxinifolius under different fertilization showed that, diameter growth effect was not significant, seedling height growth was significantly difference, compound fertilizer treatment got the highest diameter growth increment (0.319 cm), using phosphorus fertilizer could the maximum seedling height growth increment (16.8 cm). The plant root, stem biomass were significantly different under different fertilization treaments, but the difference of leaf biomass was not significant, compound fertilizer treatment obtained the highest biomass (27.27 g per strain), the root crown ratio of fertilization treatment were lower than CK(0.34). Fertilization could promote nitrogenous accumulation, in which the leaf storage amount was the largest. Phosphorus element was less accumulated, potassium elements accumulation had a choice, the order of dry matter accumulation of nutrient element was N>K>P.The total nutrients and available nutrients in fertilization soil were all increased, A. fraxinifolius absorbing nutrient was below the supply.Reasonable regulation of N, P, K elements, balanced fertilization could improve the growth of A. fraxinifolius. |
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