Nutritional quality and yield of onion as affected by different application methods and doses of humic substances

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Título: Nutritional quality and yield of onion as affected by different application methods and doses of humic substances
Autor/es: Bettoni, Marcelle M. | Mogor, Átila F. | Pauletti, Volnei | Goicoechea Preboste, Nieves | Aranjuelo, Iker | Garmendia López, Idoia
Grupo/s de investigación o GITE: Fisiología Vegetal Aplicada
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente
Palabras clave: Allium cepa | Bulb yield | Carbohydrates | Mineral elements | Food analysis | Food composition | Humic substances | Proteins | Vegetative growth
Área/s de conocimiento: Fisiología Vegetal
Fecha de publicación: ago-2016
Editor: Elsevier
Cita bibliográfica: Journal of Food Composition and Analysis. 2016, 51: 37-44. doi:10.1016/j.jfca.2016.06.008
Resumen: Fertilization with humic substances (HS) has been proposed as target tool to improve crop production within a sustainable agriculture framework. The dose and application method are two factors that can influence the effect of HS on nutrient composition and productivity of onion. Therefore, our main objective was to assess the effect of each of the abovementioned factors, separately or interacting, on the quality and productivity of onion bulbs in a field test. The experimental design was completely randomized in a factorial 2 × 3, with two methods of application of HS and three different doses. The combined application method, immersion together with foliar pulverization, showed highest improvement of biomass and nutritional content of bulbs. However, while the intermediate dose of HS exerted greater increases on onion yield, productivity, carbohydrates and proteins levels in bulbs, mineral nutrient accumulation resulted especially when highest doses of HS were added. From a nutritional point of view, higher sweetness (from 113 to 149 mg g−1 of soluble sugars in dry matter) and an improved P, K and Mg content of bulbs (4.00, 11.65 and 3.18 g kg−1, respectively) in response to HS addition has been ascribed.
Patrocinador/es: Marcelle M. Bettoni received a grant from ‘Los CAPES y Coordenação do Programa de Pós-graduação em Agronomia–Produção Vegetal’ from the Brazilian Government.
URI: http://hdl.handle.net/10045/57224
ISSN: 0889-1575 (Print) | 1096-0481 (Online)
DOI: 10.1016/j.jfca.2016.06.008
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2016 Elsevier Inc.
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1016/j.jfca.2016.06.008
Aparece en las colecciones:INV - FVA - Artículos de Revistas

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