[1]李峰卿,王秀花,楚秀丽*,等.缓释肥N/P比及加载量对5种珍贵树种1年生苗生长和养分库构建的影响[J].南京林业大学学报(自然科学版),2020,44(01):072-80.[doi:10.3969/j.issn.1000-2006.201902007]
 LI Fengqing,WANG Xiuhua,CHU Xiuli*,et al.Effects of N/P ratio and loading on growth and construction of nutrients reserves of one-year-old seedlings for five kinds of precious tree species[J].Journal of Nanjing Forestry University(Natural Science Edition),2020,44(01):072-80.[doi:10.3969/j.issn.1000-2006.201902007]
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缓释肥N/P比及加载量对5种珍贵树种1年生苗生长和养分库构建的影响
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
44
期数:
2020年01期
页码:
072-80
栏目:
研究论文
出版日期:
2020-01-15

文章信息/Info

Title:
Effects of N/P ratio and loading on growth and construction of nutrients reserves of one-year-old seedlings for five kinds of precious tree species
文章编号:
1000-2006(2020)01-0072-09
作者:
李峰卿13王秀花2楚秀丽1*张东北2吴小林1周生财2叶 明4
(1. 中国林业科学研究院亚热带林业研究所,浙江省林木育种技术研究重点实验室,浙江 杭州 311400; 2. 浙江省庆元县实验林场,浙江 庆元 323800; 3.中国林业科学研究院亚热带林业实验中心, 江西 分宜 336600; 4.建德市寿昌林场,浙江 建德 311612)
Author(s):
LI Fengqing13WANG Xiuhua2CHU Xiuli1* ZHANG Dongbei2 WU Xiaolin1ZHOU Shengcai2YE Ming4
(1.Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Hangzhou 311400, China; 2. Experimental Forest Farm of Qingyuan Country, Zhejiang Province, Qingyuan 323800, China; 3.Experimental Center of Subtropical Forestry, Chinese Academy of Forestry, Fenyi 336600,China; 4. Forest Farm of Shouchang in Jiande City, Zhejiang Province, Jiande 311612, China)
关键词:
浙江楠 浙江樟 南方红豆杉 赤皮青冈 木荷 容器苗 N/P比 缓释肥加载 养分库
Keywords:
Phoebe chekiangensis Cinnamomum chekiangense Taxus wallichiana var. mairei Cyclobalanopsis gilva Schima superba container seedling N/P ratio slow-release fertilizer loading nutrient pool
分类号:
S722
DOI:
10.3969/j.issn.1000-2006.201902007
文献标志码:
A
摘要:
【目的】揭示不同缓释肥N与P2O5质量比(N/P比)及加载量对浙江楠等5种珍贵树种1年生容器苗生长、N与P素吸收利用及养分库构建的影响,以期为精细化培育珍贵树种容器苗提供科学指导。【方法】采用4×4两因素析因设计,研究N/P比和加载量对浙江楠等5种珍贵树种1年生容器苗生长发育及N、P库构建的影响。【结果】缓释肥N/P比、加载量对5树种1年生容器苗生长和干物质积累均有显著或极显著影响。随着N/P比提高,各树种的反应却不一致; 当缓释肥加载量为F3(3.5 kg/m3)时, 5树种生长指标和干物质积累均达到最大值。浙江楠、浙江樟和木荷的叶N含量与缓释肥N/P比密切相关,但南方红豆杉和赤皮青冈叶N含量在各N/P比间差异不显著。除浙江楠外,其他4树种的叶P含量在不同N/P比下差异显著,但各树种叶N和P累积量却对N/P比响应均不敏感。较之于N/P比,缓释肥加载量对5种珍贵树种1年生容器苗N、P库构建的影响更明显,叶N、P含量及累积量均在较高的缓释肥加载量F3下达到最高。N、P含量在各树种器官内的变化规律基本一致,说明N、P吸收同步,但不同树种间N、P素在各器官的分配却不同。【结论】浙江楠容器苗生长及其养分库构建均需高N缓释肥,浙江樟、赤皮青冈和木荷则需要相对高P缓释肥,而南方红豆杉容器苗生长对N/P比要求不严格,但其养分库构建需高N缓释肥; 在考虑N/P比的同时,适量(3.5 kg/m3)增施缓释肥,可提高珍贵树种的容器苗质量。
Abstract:
【Objective】 To provide scientific guidance for seedling cultivation in containers, the impacts of slow-release fertilizer(SRF)loading were observed for the growth, nitrogen(N)and phosphorus(P)uptake, and nutrient pool construction of five precious tree species, such as Phoebe chekiangensis. 【Method】 A 4 × 4 factorial experimental design was used to compare the impacts of the N/P mass ratio(1.75:1, 2.25:1, 2.75:1 and 3.25:1)and SRF loading levels(1.5, 2.5, 3.5 and 4.5 kg/m3)on the growth and N and P nutrient pool construction of one-year-old seedlings. 【Result】 Significant effects were detected in the growth and dry matter accumulation between N/P ratios, SRF loading, and their interaction. As the N/P ratio increased, the tree species responded differently. The largest growth and dry matter accumulation of the five precious tree species was detected with 3.5 kg/m3 SRF loading. The N concentration in the leaves of P. chekiangensis, Cinnamomum chekiangense and Schima superba was correlated with the N/P ratio, but there was no difference in the leaf N concentration of Taxus wallichiana and Cyclobalan gilvain. The P concentration in the leaves of all species, except for P. chekiangensis, also significantly differed with varying N/P ratios. However, the N and P accumulation in the leaves of all species were not sensitive to the N/P ratio. The effect of the SRF loading on the nutrient accumulations was more obvious than the N/P ratios; the concentration and accumulation of leaf N and P were highest with 3.5 kg/m3 SRF loading. Changes in the N and P concentrations in the organs of the different species were similar, indicating N/P absorption synchrony, whilst the distribution of N and P among the organs was species-specific. 【Conclusion】 Based on the growth characteristics of the different tree species, seedlings of P. chekiangensis should be loaded with higher N content fertilizer, and the seedlings of Cinnamomum chekiangense, Cyclobalan gilva and S. superba should be loaded with higher P content fertilizer. T. wallichiana seedlings are not sensitive to the N/P ratio, but nutrition construction suggests that it is N/P ratio and adding appropriate amounts of SRF(3.5 kg/m3

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备注/Memo

备注/Memo:
收稿日期:2019-02-14 修回日期:2019-04-28基金项目:浙江省省院合作林业科技项目(2017SY19、2016SY03)。第一作者:李峰卿(lfqnjfu@163.com),高级工程师,ORCID(0000-0002-1855-6889)。*通信作者:楚秀丽(xiulic0207@163.com),助理研究员,ORCID(0000-0001-6721-8870)。
更新日期/Last Update: 2020-01-15