不同肥料处理对尾巨桉土壤和叶片化学计量的影响

李桃祯; 谭长强; 陶世红; 陈鑫; 王凌晖; 李茹

doi:10.19303/j.issn.1008-0384.2016.05.010

不同肥料处理对尾巨桉土壤和叶片化学计量的影响

doi: 10.19303/j.issn.1008-0384.2016.05.010

李桃祯¹,
谭长强^1,2,
陶世红^1, ,,
陈鑫¹,
王凌晖¹,
李茹¹

1.
广西大学林学院, 广西南宁 530002;
2.
广西林业科学研究院, 广西南宁 530002

基金项目:

国家自然科学基金项目(31360174);广西十一五林业科技重大项目(桂林科字[2010]第6号);广西林业科技项目(桂林科字[2012]第7号)

详细信息

作者简介:
李桃祯(1992-),女,研究方向:森林培育(E-mail:1342064683@qq.com)

通讯作者:
陶世红(1974-),女,硕士,讲师,研究方向:园林植物栽培学(E-mail:tsh0609@163.com)

中图分类号: S792.39
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出版历程
- 收稿日期: 2016-03-12
- 修回日期: 2016-04-14
- 刊出日期: 2016-05-28

Effect of Fertilizations on Soil and Leaf Stoichiometry of Eucalyptus urophylla×E.grandis

1.
College of Forestry, Guangxi University, Nanning, Guangxi 530002, China;
2.
Guangxi Academy of Forestry, Nanning, Guangxi 530002, China

摘要

摘要: 以盆栽尾巨桉DH32-29苗木为试验对象,研究不同肥料处理(包衣肥、硫酸肥、蒸气肥及活性肥)对其土壤和叶片C、N、P含量及其化学计量特征的影响。结果表明:不同肥料处理均能明显提高土壤和叶片的C、N、P含量;添加活性肥的3种肥料处理其土壤C和叶片C、N、P含量均分别大于其未添加活性肥的处理,而添加活性肥的土壤N、P含量均小于未添加的;施肥处理的土壤C:N、C:P均显著低于对照;施肥处理的叶片C:N极显著低于对照,N:P极显著高于对照,各处理之间的叶片C:N和N:P比值相对稳定,且施肥处理的叶片N:P比值较低;相关分析表明,该试验盆栽土壤中C含量与土壤P含量有较弱的负相关性,而与土壤N及其C、N、P化学计量比、叶片C、N、P及其化学计量比均无相关性,土壤N与土壤C:N相关性显著,土壤N、P、C:N、C:P、N:P、叶片C、N、P及其化学计量之间均存在极显著的相关性。
- 桉树 /
- 尾巨桉DH32-29 /
- 肥料 /
- 化学计量 /
- 活性肥
Abstract: Potted seedlings of Eucalyptus urophyllaE.grandis DH32-29 were used to study the effect of the coating,sulfate, steam,or active fertilizations on the soil and the carbon (C),nitrogen (N),and phosphorus (P)contents as well as stoichiometric characteristics of the leaves of the plants. The results showed that (1) all fertilization scould significantly increase C, N, and P in the soil and the leaves; (2) C in soil and C, N, and P in leaves were higher by using active fertilization in the soil than those 3 other treatments, while N and P in the soil were less with the active fertilization than without; (3)the ratios of C:N and C:P in soil were significantly lower with the fertilizations than control without added fertilizer; (4) C:N in leaves was significantly lower with fertilization than control, and N:P significantly higher than control, while the ratios of C:N and N:P in leaves were similar among the different fertilizations but lower than control; (5) a weak inverse correlationship was oberved between C and P contents in the potting soil; (6)the C, N, and C, N, P stoichiometric ratio in soil did not correlate tothe C, N, P, and stoichiometric ratio in leaves, but in the soil,N significantly correlated with C:N; (7)highly significant correlations between the N, P, C:N, C:P, N:P in soil and the C, N, P, and stoichiometry in leaves were found.
- Eucalyptus /
- Eucalyptus urophylla×E.grandis /
- fertilizer /
- stoichiometry /
- active fertilizer

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参考文献(11)

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