Fontes e doses de zinco no feijoeiro cultivado em diferentes épocas de semeadura

Teixeira, Itamar Rosa; Borém, Aluízio; Silva, Alessandro Guerra da; Kikuti, Hamilton

doi:10.4025/actasciagron.v30i2.1739

Cited by 15 publications

(19 citation statements)

References 2 publications

(3 reference statements)

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“…Pérola, que chegou a 1.795 kg ha -1 . Por outro lado, Teixeira et al (2008) verificaram, avaliando fontes (sulfato e cloreto de zinco) e doses de zinco (0, 100, 200, 400 e 800 g ha -1 ) que não houve aumento de produtividade do feijoeiro cv. Pérola à adubação com zinco via foliar em um solo com 2,1 mg kg -1 de zinco (Mehlich-1).…”

Section: Introductionunclassified

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Cardoso

Galante

Teixeira

et al. 2013

Agraria

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RESUMOA mamona é tida, pelo governo brasileiro, como a principal oleaginosa com vista à produção de biodiesel. Contudo, isto não aconteceu devido aos seus baixos patamares de rendimento, sobretudo na região nordeste onde é cultivada comumente sob sistema consorciado com culturas anuais como feijão-comum. Produtividades satisfatórias somente serão conseguidas através do conhecimento das reais exigências nutricionais das culturas participantes do sistema consorciado, ante o que se objetivou, neste trabalho, avaliar a nutrição e as características agronômicas das culturas de feijão-comum e mamona em consórcio submetidas a diferentes fontes e doses de zinco. Empregou-se o delineamento de blocos casualizados em esquema fatorial 2 x 5 + 4, com três repetições. Os tratamentos foram compostos de duas fontes de zinco (óxido de zinco = 15% de Zn e sulfato de zinco = 20% de Zn), combinadas com cinco doses de zinco (0,0; 1,0; 2,0; 4,0 e 8,0 kgha -1 de Zn no solo) em consórcio de feijão-comum e mamona, mais os tratamentos adicionais do sistema monocultivo de feijão e mamona, usando-se a dose de 4,0 kg ha -1 das referidas fontes. Os teores foliares de fósforo, cálcio, magnésio, manganês e zinco em plantas de feijão e de mamona produzidas em sistema consorciado, foram influenciados pela adubação com zinco com o emprego do sulfato de zinco atribuído à sua maior solubilidade, comparativamente ao óxido de zinco. A fertilização com 4,1 e 4,9 kg ha -1 de zinco via solo, propiciou maiores rendimentos de grãos de feijão e mamona em consórcio. O sistema de consorciamento feijão-comum e mamona foi mais eficiente que o monocultivo para as diferentes doses de zinco adicionadas via fertilizante.Palavras-chave: adubação, associação de culturas, micronutriente, Phaseolus vulgaris L., Ricinus communis L. Sources and doses of zinc on beans and castor beans nutrition and production under intercropping ABSTRACTThe castor oil is taken by the Brazilian government as the main oilseed for biodiesel production. However, this did not happen because of their low levels of income, especially in the Northeast region, Brazil, where it is commonly grown under intercropping system with annual crops such as common bean. Satisfactory yields only be achieved with real knowledge of nutrient requirements of crops intercropping system participants. Therefore, this study aimed to assess the nutritional and agronomic traits of crops common bean and castor intercropping under different sources of zinc rates. The experimental of randomized block in 2 x 5 + 4factorial in scheme design, with three replications. The treatments consisted of two sources of zinc (zinc oxide = 15% Zn and zinc sulfate = 20% Zn) combined with five rates of zinc (0.0; 1.0; 2.0; 4.0 and 8.0 kg ha -1 Zn in soil)intercropping in common bean and castor, plus additional treatments single system common bean and castor, using a rate of 4.0 kg ha -1 of said sources. It is concluded that fertilization with zinc influenced foliar the phosphorus, calcium, magnesium, manganese content and zinc in these c...

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Section: Introductionunclassified

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Cardoso

Galante

Teixeira

et al. 2013

Agraria

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“…These results are consistent with those observed by Boaretto, Muraoka & Buoratto (2003) for the coffee crop. However, Teixeira et al (2008) found no significant difference in ZnC_L of common beans due to fertilizations with Zn chloride or sulfate.…”

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confidence: 62%

“…For cocoa, the most used Zn fertilizer for foliar fertilization is ZnSO 4 (Malavolta, 1987;Chepote et al, 2013), but studies with other crops have demonstrated (Boaretto, Muraoka & Buoratto, 2003) or not (Teixeira, Borém, Silva, & Kikuti, 2008) higher efficiency of Zn absorption when the inorganic source is ZnCl 2 ; other studies also indicate that the efficiency of Zn absorption by the leaves increases when KCl is added to the ZnSO 4 solution (Coutinho Neto et al, 2010).…”

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confidence: 99%

Zinc Fertilizers and Additives for Foliar Fertilization of Cocoa Seedlings

Júnior¹,

Silveira²,

Santos³

et al. 2018

JAS

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Foliar fertilization is an interesting strategy for nutrition with micronutrients in perennial plants; among the micronutrients, zinc (Zn) deficiency is the most frequent in cocoa trees (Theobroma cacao L.). The present study aimed to evaluate the efficiency of Zn sources through foliar application for the cocoa crop. The experiment was carried out in a randomized block design, with 10 treatments and four replicates. Treatments were: foliar fertilizations containing 1 g L-1 of Zn using two inorganic sources (chloride and sulfate), in the presence or absence of additives (urea and sucrose); two organic sources (Zn-EDTA, and from chloride and sulfate); soil fertilization with 8 mg dm-3 of Zn, and a control (without addition of Zn). Foliar fertilizations with Zn were monthly applied for five months, and the experiment was conducted for 210 days. The results were subjected to analyses of variance and contrast. Zn fertilization, regardless of the form of application, increased Zn contents and accumulations in the leaves. Zn fertilization in the soil, at planting, led to a recovery rate by the plant similar to the mean value caused by foliar fertilizations. ZnCl2 caused higher Zn contents and accumulations in the leaves and was more efficient than sulfate and EDTA; addition of urea to the ZnSO4 solution increased Zn accumulation in the leaves, whereas addition of sucrose to the ZnCl2 solution reduced Zn content in the leaves.

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“…Comparing with the zero rate, the application of 1,200 g ha -1 of Zn increased ZnCG by 35%. We did not use Zn rates higher than 1,200 g ha -1 to prevent a possible leaf scorch that would be caused by the Zn solution because the highest rate of ZnF tested for correction of Zn deficiency in common bean is 800 g ha -1 (Teixeira et al, 2008). The highest ZnCG achieved in this greenhouse experiment was below the range of 53.2 to 81.2 mg kg -1 of Zn obtained by Ram et al (2016) in field experiments in Brazil, probably indicating that Zn available to plants in the present study was low.…”

Section: Resultsmentioning

confidence: 99%

Agronomic biofortification of common bean grain with zinc

Cambraia

Fontes

Vergütz

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the effects of the split and combinated application of foliar zinc (ZnF) + soil Zn (ZnS) on Zn concentration in the grains (ZnCG) of common bean (Phaseolus vulgaris). Two experiments were carried out in a greenhouse during two seasons. In the first experiment, two common bean cultivars received six ZnF rates (0, 120, 240, 480, 720, or 1,200 g ha-1), with split applications at the R5, R7, and R8, or R7 and R8, or R8 plant stages. In the second experiment, one cultivar received three ZnS rates (0, 5, or 10 kg ha-1) combined with ZnF rates (0, 1, 1.5, 3, 6, or 10 kg ha-1). In the first experiment, with the ZnF increment, ZnCG increased linearly from 15.3 to 20.7 mg kg-1. ZnF splitting did not affect ZnCG. In the second experiment, ZnF without ZnS did not affect ZnCG. ZnS doubled ZnCG in comparison with the treatment without ZnS application. At 5 kg ha-1 ZnS, the highest ZnCG (67.5 mg kg-1) was obtained with 7.8 kg ha-1 ZnF. At 10 kg ha-1, the highest ZnCG (66 mg kg-1) was obtained with 4.9 kg ha-1 ZnF. ZnF splitting is not advantageous over a single application, and the combination of ZnF and ZnS increases ZnCG in common bean, in greenhouse conditions.

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Fontes e doses de zinco no feijoeiro cultivado em diferentes épocas de semeadura

Cited by 15 publications

References 2 publications

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Zinc Fertilizers and Additives for Foliar Fertilization of Cocoa Seedlings

Agronomic biofortification of common bean grain with zinc

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