Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/9165
Título: Clorose férrica induzida pelo calcário
Autor: Pestana, Maribela
Varennes, A.
Correia, Pedro José
Palavras-chave: bicarbonate
fruit tree
iron-chelate reductase
micronutients
Data: 2014
Editora: Univ. Federal de Viçosa
Citação: "Revista Ceres". ISSN 0034-737X. 61, Supl.(2014) 849-855
Resumo: Iron chlorosis is one of the most common and difficult to control problems in crops grown on calcareous soils. In alkaline soils, which represent one third of the Earth surface, the bicarbonate ion prevails and is a major induction factor of iron chlorosis. As a result, alkalinity limits Fe bioavailability in the soil solution, Fe reduction and assimilation, as well as transport and uptake within the plant. Due to this nutritional imbalance, plants develop different response strategies which are not entirely successful on calcareous soils. In consequence, yield, fruit quality and harvesting season are negatively affected. Preventing and treating iron chlorosis is highly costly, but is inevitable, in order to ensure crop sustainability in regions where soil calcium carbonate and aridity are limiting factors. In this work, we present a short overview of Fe dynamics in calcareous soils and its influence on crop productivity
Peer review: yes
URI: http://hdl.handle.net/10400.5/9165
DOI: http://dx.doi.org/10.1590/0034-737X201461000010
Aparece nas colecções:DCEB - Artigos de Revistas

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