Adsorção de fósforo, superfície específica e atributos mineralógicos em solos desenvolvidos de rochas vulcânicas do Alto Paranaíba (MG)

Neto, Fernando Cartaxo Rolim; Schaefer, C. E. G. R.; Costa, Liovando Marciano da; Corrêa, Marcelo Metri; Filho, Elpídio Inácio Fernandes; Ibraimo, M. M.

doi:10.1590/s0100-06832004000600003

Cited by 36 publications

(7 citation statements)

References 24 publications

(26 reference statements)

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“…The precipitation of SRP by Luvisol, Planosol, and Scheelite tailing refuted the hypothesis that the greatest SRP adsorption would be that of the natural adsorbent material with a higher clay content, indicating that the mineralogy of this clay fraction in addition to the content of exchangeable bases in the soil is more important than clay fraction content, as was reported by other studies (Rolim-Neto et al, 2004;Corrêa et al, 2011).…”

Section: Discussionsupporting

confidence: 79%

“…The presence of gibbsite in this fraction may contribute to the high efficiency of the tailings in SRP sorption. Gibbsite strongly retains phosphate (Rolim-Neto et al, 2004;Eriksson et al, 2016), so knowledge of the mineralogy of clay fraction is essential to understand the potential for SRP sorption by the natural adsorbent materials, even more than quantity. In semiarid regions, gibbsite plays a greater role in the maximum phosphorus sorption capacity of soils than iron oxides (Agbenin & Tiessen, 1994).…”

Section: Discussionmentioning

confidence: 99%

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Phosphorus sorption potential of natural adsorbent materials from a Brazil semiarid region to control eutrophication

et al. 2021

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Aim The aim of the present study was to evaluate the potential soluble reactive phosphorus (SRP) sorption of three natural P adsorbents (Luvisol, Planosol, and Scheelite tailing) from Brazil’s semiarid region. Methods The adsorption tests were done under pH 8 conditions with the natural adsorbents and Lanthanum-Modified Bentonite (LMB). The effect of humic substances on SRP sorption was also tested. For this, Luvisol and Planosol were incinerated to reduce their humic components, and new adsorption tests were done. The effect of adsorbents on water pH was also evaluated. Results The SRP sorption potential of the natural adsorbents was high at pH 8. Of the natural adsorbents, Luvisol achieved the highest maximum SRP adsorption capacity (Q) of 17.5 mg g-1, followed by Scheelite tailing (8.3 mg g-1) and Planosol (7.7 mg g-1). Scheelite tailing, Planosol and LMB increased the pH of the water. After treatment to reduce humic substances, Planosol showed a Q of 22.3 mg g-1 while Luvisol produced 11.1mg g-1. Reducing the amount of humic substances potentiated the sorption process in the Planosol. However, the isotherms of untreated Luvisol and treated Planosol have not reached equilibrium and therefore may be overestimated. Conclusions The precipitation process was probably the main sorption mechanism, being more expressive than adsorption. Scheelite tailing was the most promising material for eutrophic environments because it is alkaline, calcium-rich, and this capacity will probably remain high under anoxic conditions. It also has a small amount of organic matter and, consequently, contains less humic substances. The quality of the clay present in natural adsorbents was more important than quantity in the sorption process.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Phosphorus sorption potential of natural adsorbent materials from a Brazil semiarid region to control eutrophication

et al. 2021

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“…In another study, it was observed that the amount of available phosphorus in soil decreases gradually as a function of the number of grown crops and the removal of this nutrient by plants [ 20 ]. Besides the uptake by plants, it is argued that a decrease in available phosphorus in soil may be related to the low solubility of phosphorus compounds in soil and the formation of nonlabile compounds in the soil after application of the waste [ 21 ].…”

Section: Discussionmentioning

confidence: 99%

Chemical Attributes of Soil Fertilized with Cassava Mill Wastewater and Cultivated with Sunflower

Dantas

Rolim

Duarte

et al. 2014

The Scientific World Journal

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The use of waste arising from agroindustrial activities, such as cassava wastewater, has been steadily implemented in order to reduce environmental pollution and nutrient utilization. The aim of this study is that the changes in chemical properties of dystrophic red-yellow latosol (oxisol) were evaluated at different sampling times after reuse of cassava wastewater as an alternative to mineral fertilizer in the cultivation of sunflower, hybrid Helio 250. The experiment was conducted at the Experimental Station of the Agricultural Research Company of Pernambuco (IPA), located in Vitória de Santo Antão. The experimental design was randomized blocks with 6 × 5 subplots; six doses of cassava wastewater (0; 8.5; 17.0; 34.0; 68.0; and 136 m3 ha−1); and five sampling times (21, 42, 63, 84, and 105 days after applying the cassava wastewater), with four replications. Concentrations of available phosphorus and exchangeable potassium, calcium, magnesium and sodium, pH, and electrical conductivity of the soil saturation extract were evaluated. Results indicate that cassava wastewater is an efficient provider of nutrients to the soil and thus to the plants, making it an alternative to mineral fertilizers.

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“…Among the models, there is a preference for the Langmuir isotherm, because it allows to obtain the maximum soil phosphorus adsorption capacity (PAC) and the constant "k", related to the energy of this element binding to the soil (Novais & Smyth, 1999). As it turns, the PAC is strongly associated with the clay content and the type of mineral present in the soil (Rolim Neto et al, 2004;Simões Neto et al, 2009;Corrêa, Nascimento, & Tavares, 2011).…”

Section: Introductionmentioning

confidence: 92%

“…In tropical soils, clay minerals govern the sorption and adsorption mechanism of P, both supplying this nutrient to the plant and competing for P applied in phosphate fertilizers (Rolim Neto, Schaefer, Costa, Corrêa, Fernandes Filho, & Ibraimo, 2004). Several investigations have shown that goethite (Gt = α-FeOOH) and gibbsite (Gb = γ-Al(OH) 3 ) rich soils provide higher P-fixing power than hematite-governed soils (Hm = α-Fe 2 O 3 ) and, secondarily, kaolinite (Kt) (Broggi, Oliveira, F. J. Freire, M. B. G. S. Freire, & Nascimento, 2011;Barbieri et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Mineralogy and Maximum Phosphorus Adsorption Capacity in Soybean Development

Oliveira¹,

Silva²,

Souza³

et al. 2018

JAS

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The low natural fertility of tropical soils and the mineralogy almost dominated by iron and aluminum oxides limit the availability of phosphorus (P) to the plants, causing negative impacts on soybean yield. Objective was to evaluate the effect of phosphate fertilization on soils with different maximum phosphorus adsorption capacities (PAC) in soybean development. The experiment was carried out under greenhouse conditions, using Red-yellow Latosol (RYL) and a Typic Hapludalf (TH) soil as substrate. The analyses were performed by a completely randomized experimental design in a 5 × 2 factorial arrangement with three replications. The treatments consisted of 5 doses of P applied, corresponding to 0, 1, 6, 12, and 24% of PAC of each soil. In the soil, the mineralogy of the clay fraction (hematite, goethite, gibbsite and kaolinite) and crystallographic attributes were characterized. In the plant, we evaluated growth and pod production. The PAC of the soils ranged from 220 to 650 mg dm -3 with higher value in the RYL associated to clayey oxidic mineralogy and texture in relation to the TH of kaolinite origin and sandy texture, where the higher energy of adsorption observed was to TH. Phosphorus application from 16 to 21% of PAC, independently of the soil, promotes the same pattern of response with improvements in soybean development evidenced by increases in P content in plant tissue, plant height, root volume and aerial dry mass.

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Adsorção de fósforo, superfície específica e atributos mineralógicos em solos desenvolvidos de rochas vulcânicas do Alto Paranaíba (MG)

Cited by 36 publications

References 24 publications

Phosphorus sorption potential of natural adsorbent materials from a Brazil semiarid region to control eutrophication

Phosphorus sorption potential of natural adsorbent materials from a Brazil semiarid region to control eutrophication

Chemical Attributes of Soil Fertilized with Cassava Mill Wastewater and Cultivated with Sunflower

Mineralogy and Maximum Phosphorus Adsorption Capacity in Soybean Development

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