Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/33036
Título: Nutrição e crescimento do tomateiro em função da interação ácido húmico-boro
Título(s) alternativo(s): Tomato nutrition and growth as related to the humic acid-boron interaction in contrasting soils
Palavras-chave: Acúmulo de nutrientes
Matéria orgânica
Sistema radicular
Matéria seca
Accumulation of nutrients
Organic matter
Root system
Dry matter
Data do documento: Set-2018
Editor: Sociedade de Ciências Agrárias de Portugal
Citação: MOSCHINI, B. P.; SILVA, C. A. Nutrição e crescimento do tomateiro em função da interação ácido húmico-boro. Revista de Ciências Agrárias, Lisboa, v. 41, n. 3, p. 663-673, set. 2018.
Resumo: The objective of this study was to evaluate the effect of carbon-humic acid rates (C-HA) and their interaction with soil available B contents on the nutrition and growth of tomato. The experimental design adopted was a completely randomized blocks in a 2x5 factorial scheme, with two rates of B, a treatment without B to maintain the current level of available B in soil, and a treatment with the addition of B aiming to raise its level in soil to 2 mg kg-1. Boron rates in soil were combined with five concentrations of C-HA (0, 5, 10, 50 and 100 mg kg-1 of soil), with three replicates. Shoot (S) and root (R), and total (S+R) dry matter (DM) were analyzed as well as the ratio R/S, besides the availability of B in soil and plant tissue. Soil texture and OM content are factors that modulate the dry matter production and the effect of C-HA concentrations on the tomato growth. Regardless of the evaluated soil, in the treatment without B the tomato growth was lower than other treatments and the tomato DM decreased when increased the C-HA concentration. The B treatments increased DM (especially on the roots) when the C-HA concentration was increased.
URI: http://repositorio.ufla.br/jspui/handle/1/33036
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