Nutrientes minerales y crecimiento de árboles abonados de Eucalyptus grandis en el Estado de São Paulo

Bellote, A. F. J.; Ferreira, Carlos A.

doi:10.4206/bosque.1995.v16n1-07

Cited by 16 publications

(11 citation statements)

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“…Nutrient concentration in leaves is influenced by diverse factors such as site conditions, age, position of leaves and season [34]. Bellote [5], who worked with Eucalyptus grandis in Brazil, observed that nutrient concentration in leaves varies with stand age and the season. The high amount of N in the leaves of Acacia mearnsii is due to the capacity of this species to fix N. In tropical soils Acacia mearnsii is able to fix up to 200 kg N ha -1 yr -1 [2].…”

Section: Resultsmentioning

confidence: 99%

Quantification of nutrient content in above-ground biomass of young Acacia mearnsii De Wild., provenance Bodalla

Caldeira

Schumacher

Spathelf³

2002

Ann. For. Sci.

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-The present study deals with the quantification of the nutrient content of the Australian acacia (Acacia mearnsii De Wild.), provenance Bodalla, at the age of 28 months. The experiment is located at a site of low fertility of the AGROSETA company in Butiá, Rio Grande do Sul (Brazil). Above-ground biomass components (leaves, living branches, dead branches, bark and wood) of nine sampled trees were analysed. The nutrient contents in the total biomass of Bodalla were 182 kg ha -1 of N, 8.17 of P, 104 of K, 66.7 of Ca, 16.2 of Mg, and 10.1 of S. In total, 42.6% of the dry matter accounted for leaves and living and dead branches, which in turn account for 74% of N, 72% of P, 63% of K, 68% of Ca, 69% of Mg, and 74% of S of the above-ground biomass. In the trunk (bark and wood), which represents the remaining 57.4% of the total above-ground biomass, 26% of N, 28% of P, 37% of K, 32% of Ca, 31% of Mg, and 26% of S were accumulated. Acacia mearnsii De Wild. / biomass / nutrients / mineralmass / biogeochemical cyclesRésumé -Quantification des nutriments dans la biomasse aérienne de jeunes Acacia mearnsii De Wild., provenance Bodalla. Cette étude concerne la quantification, à l'âge de 28 mois, des nutriments dans la biomasse aérienne de l'Acacia australien (Acacia mearnsii De Wild.), provenance Bodalla. L'expérience est localisée dans un site de faible fertilité appartenant à la compagnie AGROSETA, à Butiá, Rio Grande do Sul (Brésil). Les compartiments de la biomasse aérienne (feuilles, branches vivantes, branches mortes, écorce et bois) de 9 arbres échantillons ont été analysés. Les quantités de nutriments dans la biomasse totale de Bodalla étaient de 182 kg ha -1 de N, 8,17 de P, 104 de K, 66,7 de Ca, 16,2 de Mg et 10,1 de S. Au total, 42,6 % de la matière sèche était composée de feuilles et de branches vivantes et mortes, représentant 74 % de N, 72 % de P, 63 % de K, 68 % de Ca, 69 % de Mg, et 74 % de S par rapport à la biomasse aérienne totale. Dans le tronc (écorce et bois), qui représente les 57,4 % restant de la biomasse aérienne totale, se sont accumulés 26 % de N, 28 % de P, 37 % de K, 32 % de Ca, 31 % de Mg et 26 % de S. Acacia mearnsii De Wild. / biomasse / nutriments / minéralomasse / cycles biogéochimiques

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Section: Resultsmentioning

confidence: 99%

Quantification of nutrient content in above-ground biomass of young Acacia mearnsii De Wild., provenance Bodalla

Caldeira

Schumacher

Spathelf³

2002

Ann. For. Sci.

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“…To assess nutrient content in trees during sampling, an age of three years old must be chosen since at this age E. grandis shows larger biomass accumulation per time unit. This is due to three-year-old trees' bigger capacity to absorb soil nutrients and according to Bellote (1990) to the fact that nutrient content in three-year-old E. grandis mature leaves shows the highest values.…”

Section: Resultsmentioning

confidence: 92%

“…Nutrient concentration in leaves is influenced by diverse factors such as site conditions, age, position of leaves and season (Van der Driessche 1984). Bellote (1990) observed that nutrient concentration in leaves of Eucalyptus grandis in Brazil varies with stand age and with the season. If E. camaldulensis canopy concentrates 54.7% of total aboveground biomass nutrients, an exploitation system that preserves these tree components in the site would mean that approx.…”

Section: Resultsmentioning

confidence: 97%

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Aboveground nutrient components of Eucalyptus camaldulensis and E. grandis in semiarid Brazil under the nature and the mycorrhizal inoculation conditions

Pagano

Bellote

Scotti

2009

Journal of Forestry Research

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A study was conducted to evaluate the aboveground biomass, nutrient content and the percentages of mycorrhizal colonization in Eucalyptus camaldulensis and Eucalyptus grandis plantations in the semiarid region (15° 09' S 43° 49' W) in the north of the State of Minas Gerais in Brazil. Results show that the total above-ground biomass (dry matter) was 33.6 Mg·ha -1 for E. camaldulensis and 53.1 Mg·ha -1 for E. grandis. The biomass of the stem wood, leaves, branches, and stem bark for E. camaldulensis accounted for 64.4%, 19.6%, 15.4%, and 0.6% of the total biomass, respectively (Table 2); meanwhile a similar partition of the total above-ground biomass was also found for E.grandis. The dry matter of leaves and branches of E. camaldulensis accounted for 35% of total biomass, and the contents of N, P, K, Ca, Mg, and S in leaves and branches accounted for 15.5%, 0.7%, 12.3%, 22.6%, 1.9%, and 1.4% of those in total above-ground biomass, respectively. In the trunk (bark and wood), nutrient accumulation in general was lower. Nutrient content of E. grandis presented little variation compared with that of E. camaldulensis. Wood localized in superior parts of trunk presented a higher concentration of P and bark contained significant amounts of nutrients, especially in E. grandis. This indicated that leaving vegetal waste is of importance on the site in reducing the loss of tree productivity in this semi-arid region. The two species showed mycotrophy.

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“…Em oposição aos altos teores dos micronutrientes encontrados nas folhas, verificou-se que os menores teores foram localizados no componente madeira. A concentração de nutrientes das folhas das árvores é influenciada por diversos fatores, como a idade das árvores, a estação do ano (VAN DER DRIESSCHE, 1984;BELLOTE, 1990), as condições do sítio e a posição em que as folhas estão dispostas na copa (VAN DER DRIESSCHE, 1984).…”

Section: Teor De Micronutrientes Nos Componentes Arbóreosunclassified

DETERMINAÇÃO DO PONTO DE AMOSTRAGEM PARA A QUANTIFICAÇÃO DE MICRONUTRIENTES EM ACÁCIA-NEGRA (Acacia mearnsii De Wild.)

Saidelles¹,

Caldeira²,

Schumacher³

et al. 2009

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O objetivo deste estudo foi determinar o ponto ótimo de amostragem para a quantificação de nutrientes em árvores de Acacia mearnsii. O trabalho foi realizado em uma plantação com quatro anos de idade localizada na cidade de Arroio dos Ratos (RS), em uma fazenda pertencente à empresa Agroseta S.A., nas coordenadas 30°07’12” de latitude sul e 51°57’45” de longitude oeste, com altitude média de 90 m. Após o inventário florestal, foram abatidas 21 árvores, distribuídas em 7 classes diamétricas, sendo determinados a biomassa e o teor de micronutrientes dos componentes folha, galho vivo, galho morto, raiz, madeira e casca. Para os componentes madeira e casca foram retiradas amostras ao longo do fuste nas posições de 1, 3, 10, 20, 30, 40, 50, 60, 70, 80 e 90% da altura total das árvores. Os teores dos micronutrientes B, Cu, Fe, Mn e Zn não demonstraram variação significativa ao longo do fuste nos componentes madeira e casca, indicando que a amostragem para quantificação de nutrientes pode ser feita a qualquer altura. É possível a estimativa do estoque de micronutrientes por amostras coletadas no DAP aos 4 anos de idade. Recomenda-se para isso a utilização de trado, para não ser necessário derrubar as árvores amostradas.

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Nutrientes minerales y crecimiento de árboles abonados de Eucalyptus grandis en el Estado de São Paulo

Cited by 16 publications

References 0 publications

Quantification of nutrient content in above-ground biomass of young Acacia mearnsii De Wild., provenance Bodalla

Quantification of nutrient content in above-ground biomass of young Acacia mearnsii De Wild., provenance Bodalla

Aboveground nutrient components of Eucalyptus camaldulensis and E. grandis in semiarid Brazil under the nature and the mycorrhizal inoculation conditions

DETERMINAÇÃO DO PONTO DE AMOSTRAGEM PARA A QUANTIFICAÇÃO DE MICRONUTRIENTES EM ACÁCIA-NEGRA (Acacia mearnsii De Wild.)

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