Resposta de culturas e disponibilidade de enxofre em solos com diferentes teores de argila e matéria orgânica submetidos à adubação sulfatada

Tiecher, Tales; Santos, Danilo Rheinheimer dos; Rasche, Jimmy Walter Alvarez; Brunetto, Gustavo; Mallmann, Fábio Joel Kochem; Piccin, Rogério

doi:10.1590/s0006-87052013005000010

Cited by 21 publications

(12 citation statements)

References 19 publications

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“…Furthermore, organic matter has surface charges that contribute to an increase in cation exchange capacity (CEC) of the soil, and, due to the high reactivity of organic matter, it regulates the availability of several nutrients, acting as the quantity factor (Q) of the soil, mainly in Cerrado soils that have a high degree of weathering (Stevenson and Cole, 1985;Silva and Mendonça, 2007;Tiecher et al, 2012;Zandonadi et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Relationship between Coffee Leaf Analysis and Soil Chemical Analysis

Sousa

Neves

Martínez

et al. 2018

Rev. Bras. Ciênc. Solo

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Research focused on adequate nutrition of plants is essential in modern coffee production to increase yield and develop more efficient management strategies with greater environmental and economic sustainability. The objectives of this study were to establish critical and optimal levels of soil fertility properties for high yielding Arabica coffee crops using the Boundary Line method and, then, relate the macronutrient contents in the diagnostic leaf of coffee to the macronutrients available in the soil using the Quadrant Diagram of the Plant-Soil Relationship (QDpsR). The study made use of a soil chemical analysis database, leaf macronutrient contents, and Arabica coffee yield from five representative coffee-growing regions in Minas Gerais. An analysis of data consistency was performed, and relative fruit yield (RFY) was related to the soil organic matter (SOM), P, K, Ca, and Mg contents in the soil, establishing the boundary line (BL) in each graph. Equations were adjusted from the BL points, and the equation that best fit was selected. Using the QDpsR method, the response plane was divided into four quadrants, where the total leaf contents of N, P, K, Ca, Mg, and S were plotted as a function of the contents of SOM, P, K, Ca, and Mg in the soil, on the y and x axes of the Cartesian coordinate system. The regression equations were adjusted to the pairs of points (y, x) of quadrants III and I and were used to estimate the macronutrient sufficiency ranges from the critical and optimal levels in the soil. The BL method was used to determine the class of good soil fertility for SOM, P, K, Ca, and Mg. The QDpsR method allows determination of response curves for leaf content as a variable of soil contents, making it possible to estimate the sufficiency ranges in the diagnostic leaf of coffee: 33.4-35.8 g kg-1 of N, 1.4-1.6 g kg-1 of P, 24.4-27.0 g kg-1 of K, 11.9-13.6 g kg-1 of Ca, 3.8-4.5 g kg-1 of Mg, and 1.4-1.8 g kg-1 of S; which were consistent with the sufficiency ranges considered suitable for the crop. This study demonstrated the importance of leaf analysis as a tool for evaluation of the nutritional status of Arabica coffee since the technique is consistent with the theoretical principles underlying it.

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Section: Resultsmentioning

confidence: 99%

Relationship between Coffee Leaf Analysis and Soil Chemical Analysis

Sousa

Neves

Martínez

et al. 2018

Rev. Bras. Ciênc. Solo

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“…Corroborando, os resultados de Gava et al (2010) observaram que a elevação da dose de N em cobertura, proveniente do sulfato de amônio, resultou no aumento da massa seca do milho, assim como na produtividade e acúmulo de N pelas plantas. Da mesma forma, as plantas do primeiro cultivo de milho e aveia preta aumentaram a produção de matéria seca com a aplicação de S, em Tiecher et al (2012), mas o aumento da produção do milho não teve relação com os teores de S disponível da camada 0 -10 cm nos solos arenosos. Tabela 2.…”

Section: Produção De Fitomassa Do Milho Após As Culturas De Invernounclassified

Manejo da adubação com sulfato de amônio no desempenho produtivo do milho cultivado após aveia e trigo

et al. 2014

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ResumoA época de aplicação, a dose e as fontes de nutrientes fornecidos ao milho têm um efeito direto na sua produtividade. Por isso, objetivou-se estudar a aplicação de N e S no milho, como sulfato de amônio, em sucessão ao trigo e a aveia e, avaliar as diferentes formas de manejo do fertilizante. O experimento foi sob o delineamento de blocos casualizados, em Latossolo Vermelho distroférrico (Hapludox). Os tratamentos com N, na dose de 120 kg ha -1 , foram aplicados em 20 parcelas (5x4), de acordo com o manejo do fertilizante: T1-N (120 kg ha -1 ) total na semeadura; T2-N (120 kg ha -1 ) total em cobertura; T3-N parcelado (40 kg ha -1 ) na semeadura e N (80 kg ha -1 ) em cobertura; T4-N antecipadamente na semeadura do trigo e na semeadura da aveia (120 kg ha -1 ); T5-testemunha (controle). As doses de S foram correspondentes à sua concentração no fertilizante. Somente o trigo recebeu a dose de 24 kg ha -1 de N na semeadura em todas as parcelas e a aveia recebeu 24 kg há -1 de N na semeadura somente nas parcelas referentes ao tratamento com antecipação do N do milho (T4). Foram avaliadas a produção de massa seca das culturas de inverno (aveia e trigo), em função da adubação na semeadura, e também a influência das culturas de inverno e do manejo do sulfato de amônio, na produtividade do milho. A aveia produziu mais massa seca em relação ao trigo, influenciando positivamente na produtividade do milho em sucessão, independente do manejo do fertilizante. Na rotação milho e aveia, as formas de manejo, com sulfato de amônio, na semeadura, em cobertura ou aplicado de forma parcelada foram igualmente eficientes na produtividade do milho. A antecipação do sulfato de amônio, na semeadura da aveia, foi favorável à produtividade do milho, equiparando-se às outras formas de manejo do fertilizante. Palavras-chave: Adubação nitrogenada, adubação sulfatada, Zea mays, Avena sativa, Triticum aestivum AbstractThe time, dose and applied nutrients in corn have a direct effect on its productivity. Therefore, the objective was to study the application of N and S in corn as ammonium sulfate, in succession to wheat and oats and evaluate different forms of fertilizer management. The experiment was conducted in a randomized block design in Oxisol (Hapludox). The five treatments with N, at a dose of 120 kg ha -1 were

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“…Although the sulfur (S) uptake by plants is lower, when compared to phosphorous (P), the sulfur requirement of crops varies significantly, depending on the species and expected yield, at times exceeding that of P, as is the case of soybean, which is more demanding than maize, because of its higher protein content (Broch et al 2011, Tiecher et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Effect of sources and doses of sulfate on soybean crop1

Lopes

Moura

Matías

et al. 2017

Pesqui. Agropecu. Trop.

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Crop demands for the macronutrient sulfur (S) are similar or greater than those for phosphorous. However, S is often overlooked in the management of crop fertilization. This study aimed to evaluate the effect of sources and doses of S on soybean cultivation under field conditions. A randomized block design, with 4 replications, was used. The treatments were arranged in a factorial scheme with one additional treatment (3 x 5 + 1), totaling 64 experimental units. Sources (elemental sulfur, single superphosphate and agricultural gypsum) and doses (20 kg ha-1, 40 kg ha-1, 60 kg ha-1, 80 kg ha-1 and 100 kg ha-1) of S were used, in addition to one control (without fertilizer). The following parameters were assessed: plant height at flowering, 1,000-seed weight, yield and agronomic efficiency, which were affected by the doses and sources of S; number of pods per plant, only affected by the sources of S; and number of pods with 3 seeds, with no statistical difference for any of the treatments. The highest yield recorded was 1,927 kg ha-1, at the dose of 80 kg ha-1 of S for gypsum, and the greatest agronomic efficiency was observed for the single superphosphate, at the dose of 20 kg ha-1 of S.

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Resposta de culturas e disponibilidade de enxofre em solos com diferentes teores de argila e matéria orgânica submetidos à adubação sulfatada

Cited by 21 publications

References 19 publications

Relationship between Coffee Leaf Analysis and Soil Chemical Analysis

Relationship between Coffee Leaf Analysis and Soil Chemical Analysis

Manejo da adubação com sulfato de amônio no desempenho produtivo do milho cultivado após aveia e trigo

Effect of sources and doses of sulfate on soybean crop1

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