Universidade de Lisboa Repositório da Universidade de Lisboa

Repositório da Universidade de Lisboa >
Faculdade de Ciências (FC) >
FC - Artigos em Revistas Internacionais >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10451/4582

Título: The effect of NK fertilization on growth patterns and leaf nutrient concentration of carob-trees (Ceratonia siliqua L.)
Autor: Correia, P. J.
Anastácio, L.
Martins-Loução, M. A.
Palavras-chave: Carob-tree
Vegetative growth
Issue Date: 1999
Editora: Kluwer
Citação: Developments in Plant and Soil Sciences, 1999, volume 86, 1, 31-34
Resumo: The purpose of this experiment was to analyse soil nutrient availability as factors controlling vegetative and reproductive growth in carob {Ceratonia siliqua) trees. The orchard with 10 year-old trees, was established on a calcareous soil (total calcium carbonate: 65.2 %; active lime: 17.5 %). Four fertilization levels were tested: no fertilizer (C); 0.8 kg N.tree-1 (N treatment); 1 kg K20.tree-1 (K treatment) and 0.8 kg N.tree-1 plus 1 kg K20.tree-1 (NK treatment). No irrigation was applied during the experimental period. Branch length increment, inflorescence number, leaf area index, fruit and leaf mineral content were registered. Correlations between growth patterns and climatic variables were evaluated in order to discriminate between fertilization effects and abiotic stress, typical of Mediterranean climate, such as drought. The preliminary results of a NK fertilization trial are here presented and tree responses to N and K application were discussed in terms of source-sink effects, namely vegetative versus reproductive growth. The knowledge of these growth patterns could be important for making decisions related to fertilization. Thus, modifying orchard fertilization regimes may be a helpful strategy to improve yield on these particular droughty sites.
Descrição: ACESSO via B-on: http://dx.doi.org/doi:10.1007/978-0-585-37449-9_7
Arbitragem científica: yes
URI: http://dx.doi.org/doi:10.1007/978-0-585-37449-9_7
ISSN: 0167-840x
Appears in Collections:FC - Artigos em Revistas Internacionais

Files in This Item:

File Description SizeFormat
0167840x_31_34.pdf327,12 kBAdobe PDFView/Open
Restrict Access. You can request a copy!

Please give feedback about this item
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


  © Universidade de Lisboa / SIBUL
Alameda da Universidade | Cidade Universitária | 1649-004 Lisboa | Portugal
Tel. +351 217967624 | Fax +351 217933624 | repositorio@reitoria.ul.pt - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia