Efeito da calagem, do fosfato natural de Gafsa e superfosfato triplo no crescimento inicial e absorção de P em Eucalyptus dunnii

Maeda, Shizuo; Bognola, I. A.

doi:10.4336/2011.pfb.31.68.355

Cited by 3 publications

(2 citation statements)

References 5 publications

(8 reference statements)

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“…A calagem também influenciou na biomassa da T. serratifolia (Figura 1), o que se assemelha ao observado por Souza et al (2008), Benedetti et al (2009, Maeda & Bognola (2011) e Costa et al (2013). Os dados para a produção de biomassa seguiram uma curva quadrática para folhas, caule e raiz, com as menores médias no tratamento sem adição de calcário e aumento até 70% de saturação por bases, seguido de queda até V = 100%.…”

Section: Crescimento Inicial De T Serratifoliaunclassified

Saturação por Bases no Crescimento e na Nutrição de Mudas de Ipê-Amarelo

Vieira

Weber

2017

Floresta Ambient.

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RESUMOO ipê-amarelo (Tabebuia serratifolia) é uma espécie florestal com potencial madeireiro, porém, pouco utilizada em plantios florestais, devido à escassez de informações sobre sua produção tanto em viveiro quanto no campo. Diante disso, realizou-se experimento com o objetivo de verificar os efeitos da calagem no crescimento e na nutrição de mudas de T. serratifolia. O calcário foi misturado ao solo Latossolo Vermelho distrófico de textura franco-arenosa, em sacolas plásticas com capacidade para 2,5 kg. Os tratamentos foram dispostos em delineamento inteiramente casualizado, com cinco repetições: testemunha (26,5%); 60%; 70%; 80% e 100% de saturação por bases. Após 120 dias, avaliaram-se: altura, diâmetro de colo, relação altura e diâmetro, biomassa seca e índice de Dickson. As plantas secas foram submetidas às determinações dos teores de macronutrientes. Os melhores resultados para crescimento da T. serratifolia foram verificados no nível de 70%, principalmente porque N, K, Ca e Mg foram disponibilizados em concentrações adequadas, possibilitando o incremento. Palavras-chave:Tabebuia serratifolia, calagem, nutrição de plantas. Base Saturation on Growth and on Nutrition of Yellow Ipê Seedlings ABSTRACTYellow ipê (Tabebuia serratifolia) is a forest species with wood potential, but little used in forest plantations because of the lack of information about their production both in the nursery and in the field. Therefore, an experiment was conducted in order to verify the effects of liming on growth and nutrition of T. serratifolia. The lime was mixed with soil dystrophic Red Oxisol with sand loam texture in plastic bags with capacity of 2.5kg. The treatments were in a completely randomized design with five repetitions: control 26.5%; 60%; 70%; 80% e 100% base saturation. After 120 days, were evaluated: height, stem diameter, height and diameter relation, dry biomass and Dickson quality index. The dried plants were submitted to determination of macronutrients content. The better results for growth of T. serratifolia were observed on the level of 70%, mainly because N, K, Ca and Mg were available in adequate concentrations, allowing the increase.

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Section: Crescimento Inicial De T Serratifoliaunclassified

Saturação por Bases no Crescimento e na Nutrição de Mudas de Ipê-Amarelo

Vieira

Weber

2017

Floresta Ambient.

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“…For both species, the treatments with limestone application were superior to the control, showing that liming positively affected the growth. In a similar study, Maeda and Bognola [21] obtained a liming effect on E. dunnii growth, increasing shoot dry matter production, seedling growth, accumulation, and P use efficiency in Eucalyptus.…”

Section: Discussionmentioning

confidence: 71%

Liming and Fertilization on the Growth of Eucalyptus benthamii and Eucalyptus dunnii in Brazil

Rosa

Navroski

Pereira

et al. 2020

International Journal of Forestry Research

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The use of mineral fertilizers has shown substantial productivity gains for the vast majority of Eucalyptus forests. The objective of the present work is to evaluate the response of Eucalyptus benthamii and Eucalyptus dunnii at 48 months of age, to different doses of limestone, soluble NPK, and natural phosphates. The experiment was conducted in a plantation located in South Brazil. The experimental design was a randomized block with three replications, and the treatments consisted of combinations of doses of natural phosphate (NP) (0, 400, 600, and 800 kg ha−1 of Gafsa reactive NP P2O5), limestone (0, 3, 5, 6, and 10 Mg ha−1 of dolomitic limestone), and mineral fertilizer–NPK (0, 100, 133, and 167 kg ha−1 of mixed mineral fertilizer 6-30-6). Height and diameter measurements were taken after 48 months. There was a positive response with the increase of NPK fertilizer dose, and the dose where the highest averages were obtained was 167 kg ha−1. The doses of NP had significant effects on the increase of the variables up to 600 kg ha−1, also the averages decreased with the increase of the dosage. For liming, positive results were observed from its absence to the maximum dose, justifying its use in minimum dose in order to supply the necessary amounts of Ca and Mg in the soil. The use of NPK, natural phosphate, and limestone is recommended, causing an increase in the growth of both species of Eucalyptus studied.

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