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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
17/12/2015 |
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Data da última atualização: |
17/12/2015 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
SANTOS, A. B. dos; STONE, L. F.; SILVA, S. C. da. |
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Afiliação: |
ALBERTO BAETA DOS SANTOS, CNPAF; LUIS FERNANDO STONE, CNPAF; SILVANDO CARLOS DA SILVA, CNPAF. |
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Título: |
Estratégia de irrigação para a cultura do arroz na Região Tropical. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2015. |
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Páginas: |
6 p. |
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Série: |
(Embrapa Arroz e Feijão. Comunicado técnico, 231). |
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ISSN: |
1678-961X |
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Idioma: |
Português |
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Conteúdo: |
Este documento visa facilitar o entendimento do leitor sobre a influência do manejo da irrigação na cultura de arroz irrigado na região tropical. |
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Palavras-Chave: |
Região Tropical. |
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Thesagro: |
Arroz; Irrigação; Manejo de água; Oryza sativa; Prática cultural. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/135791/1/CNPAF-ct231.pdf
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Marc: |
LEADER 00860nam a2200241 a 4500
001 2031885
005 2015-12-17
008 2015 bl uuuu u0uu1 u #d
022 $a1678-961X
100 1 $aSANTOS, A. B. dos
245 $aEstratégia de irrigação para a cultura do arroz na Região Tropical.$h[electronic resource]
260 $aSanto Antônio de Goiás: Embrapa Arroz e Feijão$c2015
300 $a6 p.
490 $a(Embrapa Arroz e Feijão. Comunicado técnico, 231).
520 $aEste documento visa facilitar o entendimento do leitor sobre a influência do manejo da irrigação na cultura de arroz irrigado na região tropical.
650 $aArroz
650 $aIrrigação
650 $aManejo de água
650 $aOryza sativa
650 $aPrática cultural
653 $aRegião Tropical
700 1 $aSTONE, L. F.
700 1 $aSILVA, S. C. da
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Tipo/Formato |
Classificação |
Cutter |
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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
11/12/2023 |
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Data da última atualização: |
11/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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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. |
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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. |
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Título: |
Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 47, ed. e0230049, 2023. |
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DOI: |
https://doi.org/10.36783/18069657rbcs20230049 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Environmental pollution; P-thresholds; Swine manure. |
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Thesagro: |
Conservação do Solo; Dejeto; Eliminação de Resíduo; Eutrofização; Fósforo; Poluição Ambiental; Suíno. |
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Thesaurus NAL: |
Eutrophication. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159478/1/final10271.pdf
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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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Embrapa Suínos e Aves (CNPSA) |
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