Efeito da escória de siderurgia na química do solo e na absorção de nutrientes e metais pesados pela cana-de-açúcar

Prezotti, Luiz Carlos; Guarçoni, André

doi:10.1590/s0034-737x2012000400014

Cited by 9 publications

(8 citation statements)

References 9 publications

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“…Effects of slag on the increase of soil pH were also obtained by Corrêa et al (2007) and Prezotti & Martins (2012).…”

Section: Resultsmentioning

confidence: 96%

“…It is likely that the absorption rate of P was not sufficient to attend the initial metabolic demand of corn plants, leading Table 5: Heavy metal content in the soil as a function of increasing doses of steel slag and limestone using the Mehlich-1 extractor and estimated regression equations of the effect of increasing doses of steel slag and limestone on the levels of heavy metals in the soil Dose (t ha -1 ) 0 0. to the reduction of their contents in the tissues. Prezotti & Martins (2012) observed an increase in the content of P in the tissues of sugarcane plants at the end of the crop cycle when submitted to increasing doses of slag. Content of K in the aerial part of the corn plants decreased in relation to the zero dose with the doses of 0.5 to 4 t ha -1 of limestone, rising again at the two highest doses of the corrective, which resulted in the quadratic behavior of the regression equation (Table 7).…”

Section: Slag Effect R 2 Limestone Effect Rmentioning

confidence: 90%

“…The raise in base saturation (V%), the neutralization of the acidity and the availability of nutrients with the application of slag and limestone provided better growth of corn plants, reaching the maximum dry matter production of approximately 35 g at the dose equivalent to 7.0 t ha -1 of both materials (Figure 1). Prezotti & Martins (2012) obtained an increase in sugarcane yield (cane plant and ratoon at field level) with the application of steel slag at doses ranging from 0.5 to 40.0 t ha -1 .…”

Section: Slag Effect R 2 Limestone Effect Rmentioning

confidence: 97%

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Soil chemical characteristics, biomass production and levels of nutrient and heavy metals in corn plants according to doses of steel slag and limestone

et al. 2016

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Steel slag presents potential for neutralizing the soil acidity instead of limestone and for supplying nutrients for plants. The objective of this work was to study the effect of steel slag on soil chemical characteristics, biomass production, and contents of nutrients and of heavy metals on dry matter of corn plants. The levels of P, K, Na, Ca, Mg, Cu, Fe, Zn, Mn, Si, Cd, Cr, Pb, and Ni were determined in steel slag and limestone (for comparison purposes) and the growth of corn plants under increasing doses of slag and limestone (0 to 10 t ha-1) was evaluated. Steel slag presented higher levels of P, Fe, Zn, Mn, and Si when compared with limestone. No difference was found in the content of heavy metals of slag and limestone, except for Cr, which was higher in the slag. Limestone provided the greatest increase of soil pH over time. Slag increased the content of P, Si, and soil micronutrient, while limestone was more efficient in increasing the content of Mg. The levels of heavy metals in the soil increased with the application of slag, but they remained below critical level within agricultural parameters. Slag and limestone presented a similar effect on the increase of the initial production of corn biomass. The levels of heavy metals in dry matter of corn plants under increasing doses of slag and limestone were below the critical levels of the toxicity of these elements on most plants.

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“…Effects of slag on the increase of soil pH were also obtained by Corrêa et al (2007) and Prezotti & Martins (2012).…”

Section: Resultsmentioning

confidence: 96%

Section: Slag Effect R 2 Limestone Effect Rmentioning

confidence: 90%

Section: Slag Effect R 2 Limestone Effect Rmentioning

confidence: 97%

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Soil chemical characteristics, biomass production and levels of nutrient and heavy metals in corn plants according to doses of steel slag and limestone

et al. 2016

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“…However, steel slag, a by-product of steel production, has a similar corrective capacity (Prado et al, 2003;Ramos et al, 2006;Corrêa et al, 2009) and may be an alternative for agricultural areas close to steel production. Besides its acidity corrective capacity, slag may also increase Ca and Mg contents and base saturation, reducing the concentration of H+Al (Prado et al, 2003;Prezotti & Martins, 2012).…”

Section: Introductionmentioning

confidence: 99%

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Nunes

Júnior

Silva

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of the use of steel slag as a soil acidity corrective and of mycorrhizal fungi associated with phosphate fertilization on corn plants. The study was performed in a greenhouse, using 3-kg pots with a Typic Haplorthox, in a 4x5x2 factorial arrangement, with four acidity correction treatments (C1, correction with dolomitic limestone at a dose of 4 Mg ha-1; C2, correction with steel slag at a dose of 4 Mg ha-1; C3, correction with a 1:1 mixture of 2 Mg ha-1 dolomitic limestone and 2 Mg ha-1 steel slag; and C4, control, without pH correction), five phosphorus doses (0, 42, 95, 213, and 480 mg dm-3), and the presence or absence of two arbuscular mycorrhizal fungi (Rhizophagus clarus and Gigaspora margarita), with five replicates. Steel slag was efficient in correcting soil pH and providing Ca and Mg for the plants; therefore, it could replace limestone. The inoculation with R. clarus and G. margarita, associated with P doses of 42, 95, and 213 mg dm-3, improved the development of corn plants after 45 days, resulting in greater plant height, stem diameter, leaf area, and shoot and root dry matter.

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“…O não incremento nos teores de P, pode estar relacionado com os valores encontrados de pH no solo. De acordo com PREZOTTI & MARTINS (2012), o silicato tem papel importante na diminuição da adsorção de P em solos tropicais, visto que o íon silicato compete com o íon fosfato pelos mesmos sítios de adsorção na superfície dos minerais, tornando este último mais disponível às plantas.…”

Section: Tabela 1-unclassified

Fonte Alternativa De Potássio E Seu Efeito Nos Atributos Químicos De Um Latossolo Vermelho Distrófico Cultivado Com Cafeeiro Catuaí

Queiroz¹,

Figueiredo²,

Miranda³

et al. 2017

Enci Bio

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RESUMOA baixa fertilidade natural dos solos brasileiros e consequentemente a alta demanda por fertilizantes, torna-se um cenário importante na busca por fontes alternativas de nutrientes essenciais para o desenvolvimento das culturas. Assim, este ensaio teve como objetivo avaliar uma fonte alternativa de potássio e seu efeito em atributos químicos de um Latossolo Vermelho distrófico cultivado com cafeeiro, cultivar Catuaí. O experimento foi instalado e conduzido no IFTM, campus Uberlândia, no município de Uberlândia-MG. O delineamento experimental utilizado foi o de blocos ao acaso com cinco tratamentos e quatro repetições, totalizando 20 parcelas. Cada parcela foi constituída por seis plantas. Os tratamentos foram compostos por 5 doses da fonte fonolito (SiO 2 52 % -K 2 O-8%), sendo estas: 0, 100, 200, 300 e 400 kg/ha correspondentes a 0, 40, 80, 120 e 160 g/planta aplicadas na projeção da copa do cafeeiro. Foram avaliados o pH em água (1:2,5) do solo (0 a 20cm) aos 50 e 150 dias após a fertilização e os teores de P, Ca 2+ ; Mg 2+ , K + . Após 150 dias da aplicação do Fonolito obteve-se incremento nos valores de pH e nos teores de fósforo do solo, não sendo observada nenhuma alteração nos teores de potássio do solo, e demais atributos avaliados. PALAVRAS-CHAVE: Coffea arabica. Fertilizantes. Fontes potássicas. ALTERNATIVE SOURCE OF POTASSIUM AND THE EFFECT ON CHEMICAL ATTRIBUTES OF A DYSTROPHIC RED LATOSOL CULTIVATED WITH COFFEE ABSTRACTThe low natural fertility of Brazilian soils and consequently the great demand for fertilizers makes it important to search for alternative sources of essential elements for the development of crops. The high demand of potassium in agriculture and the reduced Brazilian mineral reserve, source of this nutrient, makes important the search for alternative sources of potassium. Thus, this research aimed to evaluate an alternative source of potassium and its effect on chemical attributes of a dystrophic Red Latosol cultivated with coffee, cultivar Catuaí. The experiment was installed and conducted at IFTM, campus Uberlândia, in the municipality of Uberlândia-MG. The

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Efeito da escória de siderurgia na química do solo e na absorção de nutrientes e metais pesados pela cana-de-açúcar

Cited by 9 publications

References 9 publications

Soil chemical characteristics, biomass production and levels of nutrient and heavy metals in corn plants according to doses of steel slag and limestone

Soil chemical characteristics, biomass production and levels of nutrient and heavy metals in corn plants according to doses of steel slag and limestone

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Fonte Alternativa De Potássio E Seu Efeito Nos Atributos Químicos De Um Latossolo Vermelho Distrófico Cultivado Com Cafeeiro Catuaí

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