Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Produção e Tecnologia Vegetal >
PTV - Artigos em Revistas Indexados ao ISI/Scopus >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/2204

Título: Efficacy and limitations of triticale as nitrogen catch crop in a Mediterranean environment
Autor: Rodrigues, M.A.
Coutinho, João
Martins, Fernando
Palavras-chave: Soil residual N
Soil N reserves
N- and biomass yield
Rainfall
Issue Date: 2002
Editora: Elsevier
Citação: European Journal of Agronomy. ISSN 1161-0301. 17:3 (2002) p. 155-160
Resumo: During 3 consecutive years (1996/97–1998/99) the efficacy was studied of Triticale as a nitrogen (N) catch crop sown after the harvest of the potato crop cultivated in the preceding summer season under several N fertilizer treatments. In October, shortly after the harvest of the potatoes, there were registered significative differences in the soil N–NO3− levels among N fertilizer treatments of the potato crop. The higher values were recorded on the plots corresponding to higher N doses. At the end of winter, the N status of plants and at the end of experiments (late in April), the N–NO3− in soil, the biomass yield and the N uptake by the catch crop did not reflect the differences registered before in the soil inorganic N. This comparison may suggest that Triticale is little effective in recovering the residual inorganic N of the preceding crop due either to the rainfall occurring in the autumn or to the poor vegetative development of the catch crop during the autumn/winter period. However, at the date of cut, the catch crop removed up to 80 kg N ha−1. At this time, the soil N–NO3− levels were significantly higher on the fallowed plots. This result shows that the crop was very effective in uptaking the N that is mineralized after the end of winter.
URI: http://hdl.handle.net/10198/2204
ISSN: 1161-0301
Versão do Editor: http://www.sciencedirect.com/science/journal/11610301
Appears in Collections:PTV - Artigos em Revistas Indexados ao ISI/Scopus

Files in This Item:

File Description SizeFormat
Efficacy and limitations of Triticale.pdf235,11 kBAdobe PDFView/Open

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

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

 


© Instituto Politécnico de Bragança - Biblioteca Digital - 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