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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 |
Aparece nas coleções: | DCS - Artigos publicados em periódicos |
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ARTIGO_Nutrição e crescimento do tomateiro em função da interação ácido húmico-boro.pdf | 510,41 kB | Adobe PDF | Visualizar/Abrir |
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