Publicação: Teor e acúmulo de nutrientes no feijoeiro em função da aplicação de Bioestimulante
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2014-01-01
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The biostimulants may change the nutrient uptake as it can alter plant development and growth. However, few studies have related the nutrition of the common bean plant with the application of these products. The aim was to evaluate the effects of forms and times of a biostimulant (cytokinin, indolbutyric acid and gibberellic acid) application on nutrient concentration and accumulation (N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn and B) by common bean cultivar Pérola. The treatments were: Control (without application); TS -250 mL ha-1seed treatment; V4-250 mL ha-1foliar spray in V4stage; R5-250 mL ha-1foliar spray in R5stage; TS+V4-250 mL ha-1in TS + 250 mL ha-1in V4; TS+R5-250 mL ha-1in TS + 250 mL ha-1in R5; V4+R5-250 mL ha-1in V4+ 250 mL ha-1in R5, and TS+V4+R5-250 mL ha-1in TS + 250 mL ha-1in V4+ 250 mL ha-1in R5. Biostimulant application by seed, with or without foliar application, increases the content and N accumulation in shoots of bean. Biostimulant treatments promote positive results on content and accumulation of K, Mg, Ca, and S, particularly when applied on the seed and/or by foliar spraying in V4and R5. Inconsistent results were observed in micronutrient content and accumulation when biostimulant was applied both on the seed or this in association with foliar application.
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Português
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Semina:Ciencias Agrarias, v. 35, n. 4, p. 2259-2272, 2014.
