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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
05/01/2021 |
Data da última atualização: |
16/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ESPINDULA, M. C.; RODOVALHO, G. M.; MARCOLAN, A. L.; BARBERENA, I. M.; CIPRIANI, H. N.; ARAÚJO, L. F. B. de. |
Afiliação: |
MARCELO CURITIBA ESPINDULA, CPAF-RO; Giovana Menoncin Rodovalho, Programa de Pós-Graduação em Ciências Ambientais, Universidade Federal de Rondônia; ALAERTO LUIZ MARCOLAN, CPAF-RO; Iara Magalhães Barberena, Programa de Pós-Graduação em Ciências Ambientais, Universidade Federal de Rondônia; HENRIQUE NERY CIPRIANI, CPAF-RO; Larissa Fatarelli Bento de Araújo, Programa de Pós-Graduação em Ciências Ambientais, Universidade Federal de Rondônia. |
Título: |
Ammonia loss from protected urea in soil under different irrigation depths. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Acta Scientiarum, v. 43, e46764, 2021. |
ISSN: |
1807-8621 (Online) |
DOI: |
10.4025/actasciagron.v43i1.46764 |
Idioma: |
Inglês |
Conteúdo: |
This study presents an evaluation of the viability of using protected urea under different irrigation depths to reduce nitrogen losses caused by the volatilization of ammonia (NH3) under the conditions of the Southwestern Amazon. The study was carried out at the Experimental Station of Embrapa Rondônia, in the municipality of Porto Velho, Rondônia State, Brazil. The experiment was conducted in a Red-Yellow Latosol and arranged in a 5 x 6 factorial design consisting of a combination of five treatments (N sources) with six irrigation depths. The sources of N were as follows: 1) urea (45.5% N); 2) urea (44.3% N) + 0.15% copper and 0.4% boron; 3) urea (45% N) + NBPT; 4) urea (43% N) + sulfur (1%); and 5) control (without N). The irrigation depths were 0, 5, 10, 15, 20, and 25 mm. The results showed that, regardless of the use of urease inhibitors, an irrigation depth of 10 mm is suitable for incorporating urea into the soil and stabilizing N losses from NH3 volatilization. NBPT is the most efficient inhibitor under nonirrigated conditions. All N sources promote increases in the concentrations of nitric and ammonia nitrogen in the soil. In the first 15 days after fertilizer application, the highest concentrations of ammonium were in the 0 - 10 cm and 10 - 20 cm soil layers, and NBPT showed the highest ammonium content compared to that of the other sources in the 0 - 10 cm layer. The nitric nitrogen content in the soil was slightly influenced by the irrigation depth in the first 15 days after fertilizer application. However, the ammonia nitrogen content decreased exponentially with the increase in irrigation depth due to the movement of ammonia in the soil. MenosThis study presents an evaluation of the viability of using protected urea under different irrigation depths to reduce nitrogen losses caused by the volatilization of ammonia (NH3) under the conditions of the Southwestern Amazon. The study was carried out at the Experimental Station of Embrapa Rondônia, in the municipality of Porto Velho, Rondônia State, Brazil. The experiment was conducted in a Red-Yellow Latosol and arranged in a 5 x 6 factorial design consisting of a combination of five treatments (N sources) with six irrigation depths. The sources of N were as follows: 1) urea (45.5% N); 2) urea (44.3% N) + 0.15% copper and 0.4% boron; 3) urea (45% N) + NBPT; 4) urea (43% N) + sulfur (1%); and 5) control (without N). The irrigation depths were 0, 5, 10, 15, 20, and 25 mm. The results showed that, regardless of the use of urease inhibitors, an irrigation depth of 10 mm is suitable for incorporating urea into the soil and stabilizing N losses from NH3 volatilization. NBPT is the most efficient inhibitor under nonirrigated conditions. All N sources promote increases in the concentrations of nitric and ammonia nitrogen in the soil. In the first 15 days after fertilizer application, the highest concentrations of ammonium were in the 0 - 10 cm and 10 - 20 cm soil layers, and NBPT showed the highest ammonium content compared to that of the other sources in the 0 - 10 cm layer. The nitric nitrogen content in the soil was slightly influenced by the irrigation depth in the first 1... Mostrar Tudo |
Palavras-Chave: |
Amazônia Ocidental; Embrapa Rondônia; Irrigation depths; Latossolo Vermelho-Amarelo; Porto Velho (RO); Protected urea; Red-Yellow Latosol; Rondônia; South Western Amazon; Uréia protegida; Volatilização. |
Thesagro: |
Amônia; Campo Experimental; Irrigação; Nitrogênio; Perda; Uréia. |
Thesaurus Nal: |
Ammonium nitrogen; Demonstration farms; Urease inhibitors; Volatilization. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/219891/1/cpafro-18499.pdf
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Marc: |
LEADER 02969naa a2200457 a 4500 001 2128979 005 2021-12-16 008 2021 bl uuuu u00u1 u #d 022 $a1807-8621 (Online) 024 7 $a10.4025/actasciagron.v43i1.46764$2DOI 100 1 $aESPINDULA, M. C. 245 $aAmmonia loss from protected urea in soil under different irrigation depths.$h[electronic resource] 260 $c2021 520 $aThis study presents an evaluation of the viability of using protected urea under different irrigation depths to reduce nitrogen losses caused by the volatilization of ammonia (NH3) under the conditions of the Southwestern Amazon. The study was carried out at the Experimental Station of Embrapa Rondônia, in the municipality of Porto Velho, Rondônia State, Brazil. The experiment was conducted in a Red-Yellow Latosol and arranged in a 5 x 6 factorial design consisting of a combination of five treatments (N sources) with six irrigation depths. The sources of N were as follows: 1) urea (45.5% N); 2) urea (44.3% N) + 0.15% copper and 0.4% boron; 3) urea (45% N) + NBPT; 4) urea (43% N) + sulfur (1%); and 5) control (without N). The irrigation depths were 0, 5, 10, 15, 20, and 25 mm. The results showed that, regardless of the use of urease inhibitors, an irrigation depth of 10 mm is suitable for incorporating urea into the soil and stabilizing N losses from NH3 volatilization. NBPT is the most efficient inhibitor under nonirrigated conditions. All N sources promote increases in the concentrations of nitric and ammonia nitrogen in the soil. In the first 15 days after fertilizer application, the highest concentrations of ammonium were in the 0 - 10 cm and 10 - 20 cm soil layers, and NBPT showed the highest ammonium content compared to that of the other sources in the 0 - 10 cm layer. The nitric nitrogen content in the soil was slightly influenced by the irrigation depth in the first 15 days after fertilizer application. However, the ammonia nitrogen content decreased exponentially with the increase in irrigation depth due to the movement of ammonia in the soil. 650 $aAmmonium nitrogen 650 $aDemonstration farms 650 $aUrease inhibitors 650 $aVolatilization 650 $aAmônia 650 $aCampo Experimental 650 $aIrrigação 650 $aNitrogênio 650 $aPerda 650 $aUréia 653 $aAmazônia Ocidental 653 $aEmbrapa Rondônia 653 $aIrrigation depths 653 $aLatossolo Vermelho-Amarelo 653 $aPorto Velho (RO) 653 $aProtected urea 653 $aRed-Yellow Latosol 653 $aRondônia 653 $aSouth Western Amazon 653 $aUréia protegida 653 $aVolatilização 700 1 $aRODOVALHO, G. M. 700 1 $aMARCOLAN, A. L. 700 1 $aBARBERENA, I. M. 700 1 $aCIPRIANI, H. N. 700 1 $aARAÚJO, L. F. B. de 773 $tActa Scientiarum$gv. 43, e46764, 2021.
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Embrapa Rondônia (CPAF-RO) |
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Registros recuperados : 3 | |
3. | | BARBERENA, I. M.; ESPINDULA, M. C.; TORRES, J. D.; OLIVEIRA, B. G. de F.; FÁTIMA, A. de. Compostos orgânicos como alternativa para redução da perda de nitrogênio por volatilização. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 36., 2017, Belém, PA. Amazônia e seus solos: peculiaridades e potencialidades. Belém, PA: SBCS, 2017.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Rondônia. |
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Registros recuperados : 3 | |
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