OrangerV1, Main, Exploration, bibRecord, 001938

Nutrient Dynamics in Orange Trees: The Effect of Soil Fertility

Identifieur interne : 001938 ( Main/Exploration ); précédent : 001937; suivant : 001939

Nutrient Dynamics in Orange Trees: The Effect of Soil Fertility

Auteurs : Maribela Pestana [Portugal] ; Pedro José Correia [Portugal] ; Hugo Marques [Portugal] ; Irina Domingos [Portugal] ; Amarilis De Varennes [Portugal]

Source :

Communications in soil science and plant analysis [ 0010-3624 ] ; 2011.

RBID : Pascal:12-0001679

Descripteurs français

Pascal (Inist)
- Nutriment, Caractéristique dynamique, Fertilité sol, Fleur, Chlorose ferrique, Feuille végétal, Citrus sinensis, Matière organique, Sol.

English descriptors

KwdEn :
- Citrus sinensis, Dynamic characteristic, Flower, Iron chlorosis, Nutrient, Organic matter, Plant leaf, Soil fertility, Soils.

Abstract

Lime-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.

Affiliations:

Portugal

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000137
to stream PascalFrancis, to step Curation: 000863
to stream PascalFrancis, to step Checkpoint: 000161
to stream Main, to step Merge: 001970
to stream Main, to step Curation: 001938

Le document en format XML

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<front><div type="abstract" xml:lang="en">Lime-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.</div>
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Nutrient Dynamics in Orange Trees: The Effect of Soil Fertility

Nutrient Dynamics in Orange Trees: The Effect of Soil Fertility

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri