Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ester Portela"'
Autor:
Ester Portela, José Louzada
Publikováno v:
Revista de Ciências Agrárias, Vol 34, Iss 2, Pp 13-20 (2011)
O objectivo deste estudo foi identificar um tecido indicador na detecção precoce da carência de B no castanheiro, que permita a correcção atempada da carência de B. Num souto com deficiência de B instalou-se um ensaio em que se utilizaram dois
Externí odkaz:
https://doaj.org/article/aa71ffed786848c79da85a74502f762e
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Potassium release from weathering of soil minerals may support the K nutrition of crops for many years. However, when soils become exhausted, the response to K fertilisation may be limited due to its fixation in non-exchangeable forms, reducing the e
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
A field trial was conducted between 2006 and 2009 in order to quantify the effect of boron (B) application on the yield and quality of chestnuts. The trial was established in an acid soil derived from siliceous schist and two levels of B were applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6b9ac075e91716b3f10313668b81601
Autor:
Ana Luisa Pires, Ester Portela
Publikováno v:
Ecologia mediterranea. 26:137-142
The effect of low and intensive chestnut (Castanea sativa Mill.) grove management on the amount of litterfall produced and on litter macro nutrient inputs and outputs was examined during five years in two adjacent 48 year old stands. One, F plot, was
Publikováno v:
Ecologia mediterranea. 26:129-135
Ink disease caused by the fungus Phytophthora cinnamomi Rands is a major threat to the sustainability of chestnut ecosystems in northern Portugal. Not only soil factors and host resistance but also management practices can influence the occurrence of
Autor:
Marta Ciordia Ara, Changhe Zhang, Afonso Henriques Martins, S. Pereira Lorenzo, A.M. Ramos Cabrer, Juan Majada, Isabel Feito Díaz, Rita Costa, Teresa Pinto, José Gomes-Laranjo, Luis Gustavo Martins, Ester Portela, Lia-T. Dinis, Francisco Peixoto
Publikováno v:
Applied Photosynthesis
European chestnut (Castanea sativa Mill.) covers in total 2.53 million hectares, of which 2.2 million hectares are forests and the remaining parts, are orchards. In Europe it is growing in an area comprised by 27o N and 53o N latitude, from sea level
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afccedff0fbfcaa8229d5cb3f58bea6f
http://www.intechopen.com/articles/show/title/characterization-of-chestnut-behavior-with-photosynthetic-traits
http://www.intechopen.com/articles/show/title/characterization-of-chestnut-behavior-with-photosynthetic-traits
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
This study aims to identify an alternative plant tissue to be used in the early diagnosis of boron (B) deficiency in chestnut (Castanea sativa Mill.). A B-deficient orchard was selected, and 16 trees were submitted to two levels of B fertilization. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be6637dc6ebf0f3d7730d54f26bc2c53
https://hdl.handle.net/10348/8702
https://hdl.handle.net/10348/8702
Publikováno v:
Revista de Ciências Agrárias v.34 n.2 2011
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
ResearcherID
Revista de Ciências Agrárias; vol. 34 n.º 2 (2011); 154-162
Revista de Ciências Agrárias; Vol. 34 Núm. 2 (2011); 154-162
Revista de Ciências Agrárias; Vol. 34 No. 2 (2011); 154-162
Revista de Ciências Agrárias, Volume: 34, Issue: 2, Pages: 154-162, Published: JUL 2011
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
ResearcherID
Revista de Ciências Agrárias; vol. 34 n.º 2 (2011); 154-162
Revista de Ciências Agrárias; Vol. 34 Núm. 2 (2011); 154-162
Revista de Ciências Agrárias; Vol. 34 No. 2 (2011); 154-162
Revista de Ciências Agrárias, Volume: 34, Issue: 2, Pages: 154-162, Published: JUL 2011
Efectuou-se um levantamento, a nível regional, que incidiu em soutos instalados em diversas formações geológicas, incluindo rochas ricas em manganês (Mn). Seleccionaram-se 38 soutos, 19 soutos com carência de magnésio (Mg) e outros tantos adja
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce0f755036437ee77f485768f3b80201
http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2011000200014
http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2011000200014
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Although boron (B) deficiency in chestnuts (Castanea sativa Mill.) has been identified in Portugal and B fertilization was carried out in some orchards, the post-treatment evaluations have not been made to date. So the objective of this trial was to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91bf1b528152f661256e0d015e4fe776
https://hdl.handle.net/10348/8705
https://hdl.handle.net/10348/8705
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
In northeastern Portugal, it has been difficult to identify the threshold value of exchangeable magnesium (Mg) below which Mg deficiency occurs in chestnuts (Castanea sativa Mill.), since discrepancies have been observed in some areas, apparently ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::111db37c0a6ac53481129770a2b6594c