Atributos químicos de solos influenciados pela substituição do carbonato por silicato de cálcio

Souza, Renato Ferreira de; Faquin, Valdemar; Carvalho, Ruy Inácio Neiva de; Torres, Paulo Rogério Ferreira; Pozza, Adélia Aziz Alexandre

doi:10.1590/s0100-06832008000400020

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…This, in turn, led to highly reactive silicate soils. According to Souza et al (2008), soils with low levels of clay, organic matter, and water retention capacity show decreased interaction between silicate particles and the solid phase of the soil.…”

Section: Average Recovery Of Siliconmentioning

confidence: 99%

Effects of calcium and magnesium silicate on the absorption of silicon and nutrients in wheat

Sarto

Lana

Rampim

et al. 2019

SCA

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Wheat is a plant that accumulates silicon (Si). The application of silicon to the soil may influence the absorption of nutrients by the plant and, therefore, its nutritional balance. In this study, we aimed to evaluate the effects of calcium and magnesium silicate (CaSiO3/MgSiO3) on the ability of wheat (Triticum aestivum L.) to utilize silicon and absorb nutrients from soils collected in the state of Paraná, Brazil. The experiment was carried out in a greenhouse using 8-L plastic pots and three types of soil. Treatments were arranged in randomized blocks (3 × 5 factorial design): three soils [Rhodic Acrudox (Ox1), Rhodic Hapludox (Ox2), and Arenic Hapludult (Ult)], five silicate rates (0, 1, 2, 4, and 6 t ha–1 of calcium/magnesium silicate), and four replications were performed. The effects of calcium and magnesium silicate on the concentrations of Si, N, P, K+, Ca2+, Mg2+, S, Cu2+, Zn2+, Fe2+, and Mn2+ within leaves were evaluated. Silicon concentrations in wheat leaves and stems increased with increasing rates of calcium and magnesium silicate applied to the soil. Wheat shoots accumulated averages of 28.2% (Ox1), 60.61% (Ult), and 74.14% (Ox2) of the Si from the silicate applied to the soil. Silicate fertilization increased the amount of Ca+2 and Mg+2 within leaves and reduced the amount of Zn2+ and Mn2+ within leaves. Calcium and magnesium silicate prevented excessive amounts of Mn2+ from being absorbed by wheat, improving the balance in the absorption of this nutrient.

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Section: Average Recovery Of Siliconmentioning

confidence: 99%

Effects of calcium and magnesium silicate on the absorption of silicon and nutrients in wheat

Sarto

Lana

Rampim

et al. 2019

SCA

View full text Add to dashboard Cite

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Beneficial use of a by-product from the phosphate fertilizer industry in tropical soils: effects on soil properties and maize and soybean growth

Valle

Rodrigues²,

Ramos

et al. 2016

Journal of Cleaner Production

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Desenvolvimento da aveia branca e disponibilidade de fósforo em razão da aplicação de silicato de potássio

et al. 2011

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White oat development and phosphorus availability affected by potassium silicate applicationPotassium silicate application in soil can increase phosphorus availability and influence white oat growth. This work had the objective of evaluating the effects of silicate doses applied to the soil on the white oat growth and on soil P availability. The experimental design was completely randomized, with six replications, analyzed as a 2 x 4 factorial. Treatments consisted of two P doses (20 and 200 mg dm -3 of P 2 O 5 ) combined with four Si doses (0, 150, 300 and 450 mg dm -3 ), applied at sowing. Dry matter of leaves+stems, panicles and total shoot were evaluated right after harvest. P and Si contents were evaluated in grains and panicle straw, previously separated, as well as in leaves+stems. Concentrations of Si and P in soil after harvest were also determined. Fertilization with potassium silicate increases Si levels in soil and increases P availability. Dry matter of leaves+stems is increased by silicate whenever initial P levels are low. Even considering the highest P dose, silicate application increases P availability in soil, and the plant P uptake. Si contents in panicle straw, leaves+stems and grains are influenced by the higher availability of this element in soil. Desenvolvimento da aveia branca e disponibilidade de fósforo em razão da aplicação de silicato de potássio A aplicação de silicato de potássio pode aumentar a disponibilidade de fósforo no solo, além de influenciar no crescimento da aveia branca. Objetivou-se neste trabalho avaliar o efeito da aplicação de doses de silicato de potássio no solo no desenvolvimento da aveia branca e na disponibilidade de fósforo. O delineamento experimental foi inteiramente ao acaso, em esquema fatorial 2 x 4, com seis repetições. Os tratamentos foram 20 e 200 mg dm -3 de P 2 O 5 combinados com 0, 150, 300 e 450 mg dm -3 de Si, aplicados por ocasião da semeadura. Após a colheita, determinaramse a matéria seca de folhas + colmos, das panículas e o total da parte aérea. A palha das panículas foi separada para avaliação dos teores de P e Si nas folhas + colmos, grãos e palha das panículas. As concentrações de Si e P no solo foram avaliadas após colheita das plantas. A aplicação de silicato aumenta os teores de Si no solo e influencia na maior disponibilidade de fósforo. A matéria seca de folhas + colmos é incrementada pelo silicato quando os teores iniciais de P são baixos. Mesmo com a dose elevada de P, a aplicação de silicato aumenta a disponibilidade de P no solo e a absorção pelas plantas. Os teores de Si na palha das panículas, folhas + colmos e grãos são influenciados pela maior disponibilidade do elemento no solo. Palavras-chave:Avena sativa, silício, fosfato.

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Atributos químicos de solos influenciados pela substituição do carbonato por silicato de cálcio

Cited by 3 publications

References 10 publications

Effects of calcium and magnesium silicate on the absorption of silicon and nutrients in wheat

Effects of calcium and magnesium silicate on the absorption of silicon and nutrients in wheat

Beneficial use of a by-product from the phosphate fertilizer industry in tropical soils: effects on soil properties and maize and soybean growth

Desenvolvimento da aveia branca e disponibilidade de fósforo em razão da aplicação de silicato de potássio

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