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185. | | SOUZA, F. R. de; ROSA JUNIOR, E. J.; FIETZ, C. R.; BERGAMIN, A. C.; MELO, J. S. de; SANTANA, D. R. S. Índice S de um Latossolo Vermelho distroférrico submetido ao tráfego de trator agrícola e sistemas de manejo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 34., 2013, Florianópolis. Ciência do solo: para quê e para quem: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2013. Biblioteca(s): Embrapa Agropecuária Oeste. |
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189. | | TRINDADE NETO, R. B. da; CRUZ, C. R. S. da; BARBOSA, A. F.; XAVIER, F. A. da S.; SOUZA, L. D. Incorporação de cama de aviário e carvão vegetal aumenta a capacidade de retenção de água de um Latossolo Amarelo cultivado com abacaxizeiro. In: CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 15., 2021. Mulheres na ciência desafios, oportunidades e conquistas. Cruz das Almas, BA: Embrapa Mandioca e Fruticultura, 2021. 109 f. il. PDF. Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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192. | | DIECKOW, J.; BAYER, C.; CONCEIÇÃO, P. C.; ZANATTA, J. A.; MARTIN NETO, L.; MILORI, D. M. B. P.; SALTON, J. C.; MACEDO, M. C. M.; MIELNICZUK, J.; HERNANI, L. C. Land use, tillage, texture and organic matter stock and composition in tropical and subtropical brazilian soils. European Journal of Soil Science, Oxford, v. 60, p. 240-249, Apr. 2009. Issue 2. Biblioteca(s): Embrapa Gado de Corte. |
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Registro Completo
Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
11/12/2023 |
Data da última atualização: |
11/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 3 |
Autoria: |
SILVA, W. C. da; CASSOL, P. C.; NICOLOSO, R. da S.; MUMBACH, G. L.; DALL''ORSOLETTA, D. J.; GRANDO, D. L.; GATIBONI, L. C. |
Afiliação: |
WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages; PAULO CEZAR CASSOL, Universidade do Estado de Santa Catarina/Lages; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; GILMAR LUIZ MUMBACH, Universidade do Estado de Santa Catarina/Lages; DANIEL JOÃO DALL''ORSOLETTA, Demétrio Dall’Orsoletta Ensino Agroveterinário; DOUGLAS LUIZ GRANDO, Universidade Federal de Santa Maria; LUCIANO COLPO GATIBONI, North Carolina State University. |
Título: |
Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 47, ed. e0230049, 2023. |
DOI: |
https://doi.org/10.36783/18069657rbcs20230049 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed. MenosAbstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg ... Mostrar Tudo |
Palavras-Chave: |
Environmental pollution; P-thresholds; Swine manure. |
Thesagro: |
Conservação do Solo; Dejeto; Eliminação de Resíduo; Eutrofização; Fósforo; Poluição Ambiental; Suíno. |
Thesaurus NAL: |
Eutrophication. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159478/1/final10271.pdf
|
Marc: |
LEADER 02593naa a2200337 a 4500 001 2159478 005 2023-12-11 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.36783/18069657rbcs20230049$2DOI 100 1 $aSILVA, W. C. da 245 $aEstablishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.$h[electronic resource] 260 $c2023 520 $aAbstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed. 650 $aEutrophication 650 $aConservação do Solo 650 $aDejeto 650 $aEliminação de Resíduo 650 $aEutrofização 650 $aFósforo 650 $aPoluição Ambiental 650 $aSuíno 653 $aEnvironmental pollution 653 $aP-thresholds 653 $aSwine manure 700 1 $aCASSOL, P. C. 700 1 $aNICOLOSO, R. da S. 700 1 $aMUMBACH, G. L. 700 1 $aDALL''ORSOLETTA, D. J. 700 1 $aGRANDO, D. L. 700 1 $aGATIBONI, L. C. 773 $tRevista Brasileira de Ciência do Solo$gv. 47, ed. e0230049, 2023.
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