[1]潘平平,窦全琴*,汤文华,等.缓释肥用量对薄壳山核桃容器苗生长及养分含量的影响[J].南京林业大学学报(自然科学版),2019,43(05):163-168.[doi:10.3969/j.issn.1000-2006.201811040]
 PAN Pingping,DOU Quanqin*,TANG Wenhua,et al.Effects of slow release fertilizer dosage on growth and nutrient contents of Carya illinoensis container seedlings[J].Journal of Nanjing Forestry University(Natural Science Edition),2019,43(05):163-168.[doi:10.3969/j.issn.1000-2006.201811040]
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缓释肥用量对薄壳山核桃容器苗生长及养分含量的影响
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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:
43
期数:
2019年05期
页码:
163-168
栏目:
专题报道
出版日期:
2019-09-20

文章信息/Info

Title:
Effects of slow release fertilizer dosage on growth and nutrient contents of Carya illinoensis container seedlings
文章编号:
1000-2006(2019)05-0163-06
作者:
潘平平12窦全琴1*汤文华2谢寅峰2*
(1.江苏省林业科学研究院,江苏 南京 210014; 2.南京林业大学,南方现代林业协同创新中心, 南京林业大学生物与环境学院, 江苏 南京 210037)
Author(s):
PAN Pingping12 DOU Quanqin1* TANG Wenhua2 XIE Yinfeng2*
(1.Jiangsu Academy of Forestry, Nanjing 210014,China; 2. Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University,Nanjing 210037, China)
关键词:
薄壳山核桃 缓释肥 容器苗 矿质营养
Keywords:
Carya illinoensis slow release fertilizer container seedling mineral nutrition
分类号:
S718
DOI:
10.3969/j.issn.1000-2006.201811040
文献标志码:
A
摘要:
【目的】探究缓释肥用量对薄壳山核桃容器苗生长和养分状况的影响,确定培育薄壳山核桃容器苗合理的缓释肥用量。【方法】采用单因素完全随机区组设计,设置不同处理T0、T1、T2、T3(缓释肥用量对应为0、3、6、9 kg/m3),测定和比较薄壳山核桃苗木生长及植株N、P、K养分含量。【结果】与对照(T0)相比,不同缓释肥处理均显著促进薄壳山核桃苗木苗高、地径、单株生物量、根系总长、根系总表面积、根系总体积、根系平均直径和各器官N、P、K含量,改善了根冠比且以T1处理效果最佳; 随着处理浓度增加,促进效应下降。动态测定表明,缓释肥处理能保持试验期苗高与地径的持续快速生长,其中地径的持续时间更长,生长后期(8月中旬后)与苗高呈现非同步性。【结论】适量的缓释肥用量能促进薄壳山核桃容器苗的生长、生物量积累和根系发育,促进效应与改善植株N、P、K养分含量有关; 缓释肥施用量以3 kg/m3较佳。
Abstract:
【Objective】 The objective of the present study was to explore the effects of slow-release fertilizer dosage on the growth and nutrient contents of pecan(Carya illinoensis)container seedlings and to determine a reasonable slow-release fertilizer dosage for cultivating these seedlings. 【Method】 A single-factor, completely randomized block design was used to set up the treatments T0, T1, T2 and T3(0, 3, 6 and 9 kg/m3, respectively)with different slow-release fertilizer dosages, and the growth of seedlings and nutrient content [nitrogen(N), phosphorus(P)and potassium(K)] were determined and compared. 【Result】 Compared with the control treatment(T0), the different slow-release fertilizer treatments significantly promoted seedling height, root collar diameter, biomass per plant, total root length, total root surface area, total root volume, root diameter, and N, P, and K levels in all organ. The nutrient content improved the root-to-shoot ratio, and the treatment effect was found to be optimum with T1. As the fertilizer concentration increased, the promoting effect decreased. Dynamic measurement showed that the slow-release fertilizer treatment maintained rapid increase in seedling height and root collar diameter during the treatment period; the root collar diameter lasted longer than other factors, and the growth stage(after mid-August)and seedling height were non-synchronous. 【Conclusion】 An appropriate slow-release fertilizer dosage can promote growth, biomass accumulation, and root development in pecan container seedlings. The promoting effect was related to increased nutrient content, and the optimum fertilizer dosage was 3 kg/m3.

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备注/Memo

备注/Memo:
收稿日期:2018-11-25 修回日期:2019-06-07 基金项目:国家林业局“948”项目(2015-4-01); 中央财政林业科技推广示范资金项目(苏[2016]TG04号); 江苏高校优势学科建设工程资助项目(PAPD)。 第一作者:潘平平(pancy_p@163.com)。*通信作者:窦全琴(douqq@2008163.com),研究员,ORCID(0000-0002-3441-1882),负责方案设计和数据分析指导; 谢寅峰(xxyy@njfu.edu.cn),教授,ORCID(0000-0003-3159-9514),负责论文修改和审核。 引文格式:潘平平,窦全琴,汤文华,等. 缓释肥用量对薄壳山核桃容器苗生长及养分含量的影响[J]. 南京林业大学学报(自然科学版),2019,43(5):163-168.
更新日期/Last Update: 2019-10-08