Recuperação do fósforo residual do solo, derivado de um termofosfato magnesiano com diferentes granulometrias e do superfosfato simples granulado

Stefanutti, Ronaldo; Malavolta, E.; Muraoka, Takashi

doi:10.1590/s0103-90161995000200005

Cited by 5 publications

(7 citation statements)

References 3 publications

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“…As shown in Table 5, only the control was significantly different with the largest P dose at 75% CF. Despite the differences in the control, soil P concentrations were low compared to the values found by Stefanutti et al (1995), who reported concentrations greater than 24 mg L -1 leading to soil contamination problems. At 90 DAS, soil P levels were higher than the level determined by Stefanutti et al (1995).…”

Section: Phosphoruscontrasting

confidence: 63%

Combined pig slurry and mineral fertilization for corn cultivation

Prior

Sampaio

Nóbrega

et al. 2013

Braz. arch. biol. technol.

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Section: Phosphoruscontrasting

confidence: 63%

Combined pig slurry and mineral fertilization for corn cultivation

Prior

Sampaio

Nóbrega

et al. 2013

Braz. arch. biol. technol.

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“…Observa-se correlação positiva entre as doses de ARS com os níveis de P no solo, pois antes da semeadura os índices foram considerados baixos e passaram para a categoria média em todos os tratamentos com ARS, ao final do ciclo (STEFANUTTI et al, 1995). BERWANGER et al (2008) também observaram aumento nos níveis de fósforo no solo, em função do aumento de aplicação de doses de ARS.…”

Section: Resultsunclassified

“…DURIGON et al (2002) relataram que a quantidade de P absorvida em pastagem é muito pequena em relação à aplicada pela ARS, sendo apenas de 8 %. Desse modo, a concentração de P no solo com tempo de aplicação deve aumentar consideravelmente, o que foi observado por STEFANUTTI et al (1995), que encontraram, no primeiro ano de experimentação, usando ARS em solos agrícolas, aumento na quantidade de P disponível na camada de 0-10 cm de 242 % e 580 % com aplicação de 20 e 40 m 3 ha -1 , respectivamente, sendo classificados como altos (P >24 mg dm -3 ; CQFS-RS/SC, 1995).…”

Section: Resultsunclassified

Estudo da associação de água residuária de suinocultura e adubação mineral na cultura do milho e no solo

Prior¹,

Sampaio²,

Nóbrega³

et al. 2015

Eng. Agríc.

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RESUMO: O uso de água residuária em solo agrícola pode-se caracterizar como uma fonte alternativa de adubação, além de melhorar as condições edáficas do solo devido à matéria orgânica adicionada. Neste contexto, este trabalho teve por objetivo avaliar os efeitos na cultura do milho e em Latossolo Vermelho distroférrico típico, devido à aplicação de água residuária de suinocultura associada com adubação química. No experimento, utilizou-se de cinco doses de ARS (0; 112,5; 225; 337,5 e 450 m 3 ha -1 ) durante o ciclo do milho, combinadas com duas adubações químicas (50 e 75% da dose recomendada), para compor os respectivos tratamentos, com três repetições. Os parâmetros da cultura do milho avaliados foram: produtividade (PROD), altura de plantas (AP), teor de macronutrientes (N, P, K e Mg) e de micronutrientes (Fe, Zn, Cu e B). Os parâmetros de solo avaliados foram: conteúdo de matéria orgânica (MO), soma e saturação por bases (SB e V), pH e teores disponíveis de N, P, K, Cu, Zn, Fe e Mn. A partir dos resultados obtidos, concluiu-se que: na cultura do milho, a aplicação de água residuária da suinocultura é fator predominante no aumento da produtividade e na nutrição mineral em K, Mg, Fe, Cu e B, e insuficiente para N e P; no solo, de modo geral, a água residuária da suinocultura propiciou aumentos positivos nos parâmetros de P, Zn, Cu, pH e SB, negativos nos teores de K e Fe, e nenhum efeito nos parâmetros N, V, MO e Mn; os parâmetros P, Cu e Zn aumentaram significativamente os teores no solo ao longo do experimento, indicando a importância do fator tempo nesse tipo de estudo. PALAVRAS-CHAVE: reúso de água; resíduo animal, valorização agronômica. ESTUDY OF ASSOCIATION BETWEEN SWINE WASTEWATER AND CHEMICAL FERTILIZER IN CORN AND SOIL ABSTRACT:The use of wastewater in agricultural soil can be characterized as an alternative source of fertilizer, and improve soil conditions due to soil organic matter added. In this context, this study aimed to evaluate the effects on corn and in a Hapludox soil due to application of swine wastewater associated with chemical fertilizers. In the experiment, it was used five doses of swine wastewater (0, 112.5, 225, 337.5 and 450 m 3 ha -1 ) during the corn cycle, combined with two chemical fertilizer (50 and 75% of the recommended dose) to compose their treatments with three replicates. The parameters of maize crop were: productivity, plant height, macro nutrients (N, P, K and Mg) and micronutrients (Fe, Zn, Cu and B). The soil parameters were: organic matter, pH, N, P, K, sum of bases, base saturation, Cu, Zn, Fe and Mn. From the results it was concluded that: the culture of corn, the application of swine wastewater is the predominant factor in increasing productivity and mineral nutrition in K, Mg, Fe, Cu and B and insufficient for N and P; in the soil, generally, swine wastewater has positive increases in parameters of P, Zn, Cu, SB and pH, negative levels of K and Fe and no effect on the parameters N, V, MO and Mn; the time factor is extremely important in this type of study, for t...

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“…For the grain is that the meat-sources and have average geometric diameter of 605μm [16] while the superphosphate 1-2 mm [17], despite its higher specific surface, this unit is classified as a fertilizer of low solubility, with 24-30% P 2 O 5 solubility for phosphates in 2% citric acid [18]. Thus, combined with its smaller amount of soluble P, it is involved in the process of fixing to the ground, which can be permanent for most tropical soils acids.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, combined with its smaller amount of soluble P, it is involved in the process of fixing to the ground, which can be permanent for most tropical soils acids. This helps explain the variabil-ity of response of Tifton as the P roots absorbing solution of the soil in amounts proportional to their concentration [17]. However, being a slow release source of the gradual [19] its effects can be verified by more than five years [20.21,22].…”

Section: Resultsmentioning

confidence: 99%

Meat and Bone Meals in Agronomy Performance of Tifton Grass

Simões¹,

Cruz²,

Cruz³

et al. 2012

IJAF

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A major problem is tropical pasture conditions in acid soils of low fertility. In this context the condition of nutrition of forage plants has low availability of phosphorus (P). The present study aimed to evaluate the effect of two phosphate sources (meat and bone meals and superphosphate) in dry matter production of Tifton (Cynodon dactylon L.). The experiment was conducted from March to July 2011, in the experimental farm of UNIR, Rolim de Moura, RO. The experiment was carried out in buckets of 10 kg of soil. Treatments were the addition of increasing doses of P 2 O 5 (0, 100, 200 and 300 kg ha-1) plots with nitrogen fertilization (20 kg ha-1) in each section (30 days), there is still a witness (only N) and absolute control (no N and no P). The randomized blocks design was used with five replicates (3x2+2). Variable analysis, had different levels of production in relation to the cutting times can be attributed to the difference in solubility between the sources of P 2 O 5 studied. In terms of response in four sections, the production levels of dry matter generated by the meat and bones proved effective in relation to single super phosphate, ranging from 94%, 66% and 78% compared with the doses 100, 200 and 300 kg ha-1 , respectively. The meat and bone meal produced satisfactory answers in relation to dry matter production of Tifton, compared to conventional fertilization.

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Recuperação do fósforo residual do solo, derivado de um termofosfato magnesiano com diferentes granulometrias e do superfosfato simples granulado

Cited by 5 publications

References 3 publications

Combined pig slurry and mineral fertilization for corn cultivation

Combined pig slurry and mineral fertilization for corn cultivation

Estudo da associação de água residuária de suinocultura e adubação mineral na cultura do milho e no solo

Meat and Bone Meals in Agronomy Performance of Tifton Grass

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