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Nutrient dynamics in orange trees: the effect of soil fertility

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dc.contributor.authorCorreia, Maribela Pestana
dc.contributor.authorCorreia, P. J.
dc.contributor.authorMarques, H.
dc.contributor.authorDomingos, I.
dc.contributor.authorde Varennes, A.
dc.date.accessioned2016-01-11T15:10:53Z
dc.date.available2016-01-11T15:10:53Z
dc.date.issued2011
dc.description.abstractLime-induced iron (Fe) chlorosis is a nutritional disorder common in calcareous soils, which may result from a low level of Fe available or adverse factors that inhibit Fe mobilization and uptake by plants. Organic-matter amendments can prevent or correct Fe chlorosis in plants but the effect of endogenous soil organic matter (SOM) on this disorder is not known. The main subject of this work was to investigate the consequence of two contrasting levels of soil fertility on the nutritional status of an orange grove [ Citrus sinensis (L.) Osb. cv. Valencia Late]. The field experiment was conducted in a commercial citrus grove using mature trees distributed in two plots with different values of SOM, phosphorus (P), and potassium (K), but with the same level of active lime. The concentration of nitrogen (N), P, K, magnesium (Mg), calcium (Ca), Fe, copper (Cu), zinc (Zn), and manganese (Mn) in young and mature leaves and flowers was evaluated. The level of Mg and the Mg/Zn ratio in flowers from both plots, although significantly different, only indicated moderate Fe chlorosis, as predicted by a previously developed model, and was consistent with the amount of chlorophyll present in the leaves. However, nutrient partitioning between leaves of contrasting age was very different. Mature leaves from trees grown in the high-fertility plot (HF) had larger concentrations of N, P, and K but lower concentrations of Ca, Fe, and Mn than did those from the low-fertility plot (LF). Young leaves from the LF had more N, P, Mg, Cu, and Mn and less Ca and Fe than did those from the HF. Flower analysis, although useful to predict Fe chlorosis, failed to detect differences in the nutritional status of plants resulting from contrasting levels of soil fertility. Furthermore, endogenous SOM had only a marginal effect on Fe chlorosis.
dc.identifier.doihttps://dx.doi.org/10.1080/00103624.2011.605493
dc.identifier.issn0010-3624
dc.identifier.otherAUT: FPE00387; PCO01134;
dc.identifier.urihttp://hdl.handle.net/10400.1/7412
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor & Francis
dc.relation.isbasedonP-002-WYJ
dc.titleNutrient dynamics in orange trees: the effect of soil fertility
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2360
oaire.citation.startPage2351
oaire.citation.titleCommunications in Soil Science and Plant Analysis
oaire.citation.volume42
person.familyNameCorreia
person.givenNamePedro José
person.identifier.ciencia-id2E15-3704-0F55
person.identifier.orcid0000-0003-4927-1189
person.identifier.scopus-author-id7006210686
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication19507d4e-50e3-4dfa-b5b0-b8703a86d8ee
relation.isAuthorOfPublication.latestForDiscovery19507d4e-50e3-4dfa-b5b0-b8703a86d8ee

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