Avaliação agronômica da escória de siderurgia na cana-de-açúcar durante cinco ciclos de produção

Brassioli, Fabiano Barbiere; Prado, Renato de Mello; Fernandes, Francisco Maximino

doi:10.1590/s0006-87052009000200012

Cited by 15 publications

(12 citation statements)

References 12 publications

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“…The increase in pH observed after the second ratoon showed the capacity of silicate to correct acidity over time, which would be advantageous for this longduration crop, aside from supplying the plants with Si. Brassioli et al (2009) found that liming increased the cane yield, similarly to silicate. However, after the third harvest, the yield increase induced by silicate was greater.…”

Section: Resultsmentioning

confidence: 94%

“…According to Silveira et al (2003), the addition of silicate promoted an increase of 11 t ha -1 in the sugarcane yield of plant cane grown on a Rhodic Hapludox (sandy clay loam). Brassioli et al (2009) showed that silicate application provided the highest yield increase, more than lime in the third, fourth and fifth ratoon crops. However, only few studies have evaluated Si uptake at harvest or the recovery index of Si from the applied silicate (Khalid et al, 1978;Sousa et al, 2010), which is important to improve the sugarcane management in terms of Si fertilization.…”

Section: Introductionmentioning

confidence: 99%

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Silicate fertilization of tropical soils: silicon availability and recovery index of sugarcane

Camargo

Rocha

Korndörfer

2013

Rev. Bras. Ciênc. Solo

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SUMMARYSugarcane is considered a Si-accumulating plant, but in Brazil, where several soil types are used for cultivation, there is little information about silicon (Si) fertilization. The objectives of this study were to evaluate the silicon availability, uptake and recovery index of Si from the applied silicate on tropical soils with and without silicate fertilization, in three crops. The experiments in pots (100 L) were performed with specific Si rates (0, 185, 370 and 555 kg ha -1 Si), three soils (Quartzipsamment-Q, 6 % clay; Rhodic Hapludox-RH, 22 % clay; and Rhodic Acrudox-RA, 68 % clay), with four replications. The silicon source was Ca-Mg silicate. The same Ca and Mg quantities were applied to all pots, with lime and/or MgCl 2, when necessary. Sugarcane was harvested in the plant cane and first-and second-ratoon crops. The silicon rates increased soil Si availability and Si uptake by sugarcane and had a strong residual effect. The contents of soluble Si were reduced by harvesting and increased with silicate application in the following decreasing order: Q>RH>RA. The silicate rates promoted an increase in soluble Si-acetic acid at harvest for all crops and in all soils, except RA. The amounts of Si-CaCl 2 were not influenced by silicate in the ratoon crops. The plant Si uptake increased according to the Si rates and was highest in RA at all harvests. The recovery index of applied Si (RI) of sugarcane increased over time, and was highest in RA.Index terms: cultivar, nutrition, fertilization, monocotyledons.(

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Silicate fertilization of tropical soils: silicon availability and recovery index of sugarcane

Camargo

Rocha

Korndörfer

2013

Rev. Bras. Ciênc. Solo

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“…Correction of acidity with slag occurs similarly to the use of limestone. In addition to the decrease in acidity levels, Ca and Mg supply also occurs in soil [6,11,12], with positive effects for crops such as potatoes, rice, black oats, beans, soybeans, alfalfa, coffee, and sugarcane, among others, making steel slag a source capable of being used instead of limestone [11,13,[17][18][19][20][21]23].…”

Section: Steel Slag Modifying Soil Chemical Attributesmentioning

confidence: 99%

The Comprehensive Utilization of Steel Slag in Agricultural Soils

Deus¹,

Bertani²,

Meirelles³

et al. 2019

Recovery and Utilization of Metallurgical Solid Waste

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The use of metallurgical solid wastes such as steel slag, in agricultural activity, has become very important to contribute to reducing the accumulation of such wastes in the environment and to increase crop production. So, this chapter aims to emphasize the main aspects of the application of slags to soil chemical attributes as elevation of pH and neutralization of Al 3+ toxic in acid soils and increase nutrient content as phosphorus, calcium, magnesium, some micronutrients, and silicon. In addition, the advance in studies of the utilization of these residues in no-tillage systems in tropical soils will be discussed. Aspects related to monitoring the presence of heavy metals will be addressed.

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“…Limestone is the most used corrective in soil acidity neutralization. However, studies on the use of silicate correctives, such as steel slag, in agriculture show that they have high potential to provide soil chemical improvements, mainly by increasing pH and base saturation (Brassioli et al, 2009;Corrêa et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Nutrient accumulation and biomass production of alfafa after soil amendment with silicates

et al. 2014

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RESUMO Acúmulo de nutrientes e produção de biomassa de plantas de alfafa após correção do solo com silicatosPesquisas sobre o uso agronômico de corretivos à base de silicatos têm apontado o grande potencial desses insumos, no sentido de promover melhorias químicas do solo. Há poucas informações, porém, sobre as taxas de reatividade de suas frações granulométricas. O objetivo deste estudo foi verificar se a eficiência relativa de reatividade das frações granulométricas, obtidas experimentalmente, poderiam ser consideradas no cálculo do PRNT para prática da calagem, proporcionando adequado desenvolvimento de plantas de alfafa. Utilizaram-se seis tratamentos, que consistiram em duas escórias, aplicadas em duas doses, uma utilizando-se do PRNT medido experimentalmente e, a outra, do PRNT determinado em laboratório; calcário dolomítico e wollastonita, aplicados em uma dose, utilizando-se o PRNT determinado em laboratório. As doses dos corretivos foram calculadas a fim de elevar a saturação por bases a 80 %, considerando o PRNT experimental e de laboratório. Os tratamentos foram aplicados a dois solos: Latossolo Vermelho distrófico e Nitossolo Vermelho eutrófico. Os métodos de determinação de PRNT preconizados para calcários podem ser aplicados para escórias de siderurgia. A aplicação das escórias proporcionou ação corretiva do solo, com consequente maior acúmulo de Ca, P, e Si nas plantas de alfafa, favorecendo sua produção de matéria seca.Palavras-chave: escória de aciaria, acidez, PRNT, Medicago sativa L.. Received: 04/03/2013; Approved:11/02/2014 Studies on the use of silicate correctives in agriculture show that they have great potential to improve soil chemical characteristics, however, little information is available on the reactivity rates of their particle-size fractions. This study investigated whether the reactivity rates obtained experimentally could be considered in the calculation of ECC (effective calcium carbonate) for soil liming, promoting adequate development of alfalfa plants. Six treatments were evaluated in the experiment, consisting of two slag types applied in two rates. The experimental ECC was used to calculate one of the rates and the ECC determined in the laboratory was used to calculate the other. Rates of limestone and wollastonite were based on the ECC determined in laboratory. The rates of each soil acidity corretive were calculated to increase the base saturation to 80%. The treatments were applied to a Rhodic Hapludox and an Alfisol Ferrudalfs. The methods for ECC determination established for lime can be applied to steel slag. The application of slag corrected soil acidity with consequent accumulation of Ca, P, and Si in alfalfa, favoring DM production.

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Avaliação agronômica da escória de siderurgia na cana-de-açúcar durante cinco ciclos de produção

Cited by 15 publications

References 12 publications

Silicate fertilization of tropical soils: silicon availability and recovery index of sugarcane

Silicate fertilization of tropical soils: silicon availability and recovery index of sugarcane

The Comprehensive Utilization of Steel Slag in Agricultural Soils

Nutrient accumulation and biomass production of alfafa after soil amendment with silicates

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