Eficiência de adubos fosfatados associados ao enxofre elementar na cultura do milho

Frandoloso, Jucenei Fernando; Lana, Maria do Carmo; Fontaniva, Silvano; Czycza, Rodrigo Vianei

doi:10.1590/s0034-737x2010000500019

Cited by 9 publications

(6 citation statements)

References 10 publications

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“…Our results showed no relationship between the S content of leaf tissue and the relative grain yield of five different crops spanning 31 crop harvests (Figure 7). Some authors found that S in leaf tissue increased with S application to soil; however, this effect resulted in no increase in grain yield (Rheinheimer et al, 2005;Frandoloso et al, 2010;Moda et al, 2013). Therefore, using leaf tissue analysis alone to guide S application requires caution because annual crops tend to take up nutrients in amounts exceeding their basic nutritional requirements (luxury consumption) (Ercoli et al, 2011).…”

Section: Sulfur Content Of Leaf Tissue and Grain Yieldmentioning

confidence: 99%

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Pias

Tiecher

Cherubin

et al. 2019

Rev. Bras. Ciênc. Solo

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Sulfur (S) fertilization recommendations for grain crops in Brazil were formerly established from studies on crops with a low yield potential grown on soils under conventional tillage (CT). However, the subsequent adoption of no-tillage (NT) altered S dynamics in the soil, making it necessary to carefully evaluate the applicability of these S fertilizer recommendations. In addition, the emergence of modern high-yield-potential genotypes, the successive application of concentrated low-sulfur fertilizers, and reduction in S atmospheric deposition have raised the likelihood of positive responses of crops to S fertilization. Available literature reports contrasting crop responses to S fertilization in Brazilian soils, ranging from substantial gains to slight yield losses depending on the particular crop, soil, and climate. The primary aim of this study was to examine available data for crop grain responses to S application in NT soils in order to ascertain whether existing recommendations established for Brazilian CT soils also hold for NT soils. A systematic review of data from 35 scientific publications spanning 58 crop harvests revealed a positive yield response to S fertilization in 31 % of the crop harvests, with an average yield increase of 16 %. Crops on soils with available SO 4 2--S contents above the critical level (viz., 7.5 mg dm -3 ) exhibited no positive response to S fertilization in any crop harvest (n = 18). Dry edible bean and corn were the most responsive crops, and canola and wheat, the least. For the trials with positive crop responses, a fertilizer rate of 26 kg ha -1 S sufficed to obtain at least 95 % of the maximum possible yield. In general, the S fertilization recommendations previously established for CT soil proved effective with grain crops on NT soils as a result of the critical levels of soil available SO 4 2--S and the fact that the recommended S rates are similar to those found in this study considering trials conducted under NT conditions only. However, existing recommendations could be improved by using additional criteria for soils with available SO 4 2--S contents below the critical level since a positive response was observed in 22 % (n = 18) and 92 % (n = 12) of the crop harvests under a subtropical and a tropical climate, respectively. Our results suggest that S fertilization must be prioritized in NT soils with available SO 4 2--S contents below 7.5 mg dm -3 in the 0.00-0.20 m layer, especially in tropical climate zones. In addition, regional fertilizer recommendation guidelines should consider crop type and yield expectation in order to facilitate more sustainable S management and increased crop yields in Brazil.

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Section: Sulfur Content Of Leaf Tissue and Grain Yieldmentioning

confidence: 99%

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Pias

Tiecher

Cherubin

et al. 2019

Rev. Bras. Ciênc. Solo

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“…Entretanto, elevaram-se de forma linear em função do aumento das proporções de Sº (Figura 6D). Considerando os baixos teores de P normalmente presentes no resíduo de vermiculita (SOUSA; MACHADO; LEITE, 2011), esse fato ocorreu, provavelmente, em razão do aumento dos teores de sulfato no solo, visto que esse ânion compete pelos mesmos sítios de fixação de P no solo, ocasionando menor fixação de P e, consequentemente, aumento nos teores de P disponível (FRANDOLOSO et al, 2010). Adicionalmente, é possível que a acidificação do solo pelo Sº tenha aumentado a solubilidade de fosfatos fixados como fosfatos de cálcio no solo (HASHEMIMAJD; FARANI;…”

Section: Resultsunclassified

Influência do enxofre elementar adicionado em um resíduo da mineração visando à liberação de nutrientes no solo

Silva

Rocha

Dias

et al. 2021

Eng. Sanit. Ambient.

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RESUMO No estado da Paraíba e no Brasil, a exploração do mineral vermiculita tem gerado grande volume de resíduos no entorno das mineradoras, que tem se tornado um passivo ambiental significativo, com potencial poluente ou contaminante. Dessa forma, neste trabalho, objetivou-se avaliar a influência de proporções do enxofre elementar (fonte p.a) adicionado ao resíduo da exploração de vermiculita sobre a liberação de nutrientes no solo. Para tanto, foi realizado experimento em delineamento inteiramente casualizado em fatorial 5×8, sendo 5 proporções de enxofre elementar (0, 50, 100, 150 e 200 g.kg−1) adicionadas ao resíduo de vermiculita e 8 períodos de incubação (0, 15, 30, 45, 60, 75, 90 e 105 dias) da mistura resíduo-enxofre, com 4 repetições, totalizando 160 parcelas experimentais. Durante 105 dias de incubação, a cada 15 dias, foram determinados, na mistura solo-resíduo-enxofre, os teores disponíveis de K, Na, Ca, Mg, P, SO4−2 e os valores de pH. O resíduo de mineração associado ao enxofre elementar proporcionou, na mistura, aumento significativo nos teores de sulfato, cálcio e fósforo disponíveis, redução do pH e dos teores de K. Os teores de Mg não foram influenciados pela adição do “aditivo”; já em relação aos teores de Na, houve aumento significativo. Conclui-se que a mistura rejeito-enxofre tem potencial para incrementar os teores de alguns nutrientes do solo. Contudo, seu uso pode ser limitado em solos com dificuldade de drenagem em razão do acúmulo excessivo de sódio trocável.

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“…The fact that the control treatment also presenting foliar P content (2.63 g•kg In this sense, the results obtained differ from literature reports. For example, Frandoloso et al [9], upon evaluating the efficiency of phosphate fertilizers on corn culture, it was observed average foliar P content of 2.7 g•kg −1 with the application of triple superphosphate and 2.4 g•kg −1 with the use of reactive natural phosphate of Gafsa. Ourives et al [20] reported that the organic fertilizer Bokashi In the third crop, with soy over the residual phosphate fertilization provided initially, foliar P contents were 3.22 and 2.17 g•kg −1 for the average of factorial treatments and control treatment, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Reactive natural phosphates are phosphorus sources that have intermediate solubility between soluble P sources (as in the example of triple superphosphate) and the Brazilian rock natural phosphates [8] [9].…”

Section: Introductionmentioning

confidence: 99%

Organomineral Phosphorus Fertilization in the Production of Corn, Soybean and Bean Cultivated in Succession

Martins¹,

Resende²,

Galvão³

et al. 2017

AJPS

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The use of organic waste in agriculture has been used aiming at greater productivity, decrease in the cost of production and sustainable use of resources. The present study aimed at evaluating the effect of phosphate fertilization with the maintenance of organomineral fertilizers, combining poultry manure and soluble or reactive phosphate, in the production of grains in corn culture and the residual effect for subsequent crops of beans and soybeans. The experiment was conducted in Sete Lagoas, MG, in 2015, using three fertilizers with sources of different phosphorus sources (triple super phosphate-STP, organomineral with STP and organomineral with Bayovar phosphate) applied at the doses of 65, 130, 195 and 260 kg•ha −1 of P 2 O 5 total, and compared to the control without phosphate fertilization. We evaluated the contents of foliar P, P accumulation in the grains, yields of corn grains, beans and soy, accumulated productivity and export of accumulated P of the three cultures. The three cultures assessed presented higher productivity when compared to the average of the factorial treatments that received phosphate fertilization relative to the control. Organomineral fertilizers increased grain production, obtaining average productivity equal to or greater than those obtained with the exclusive use of STP.

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Eficiência de adubos fosfatados associados ao enxofre elementar na cultura do milho

Cited by 9 publications

References 10 publications

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Influência do enxofre elementar adicionado em um resíduo da mineração visando à liberação de nutrientes no solo

Organomineral Phosphorus Fertilization in the Production of Corn, Soybean and Bean Cultivated in Succession

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