Ammonia loss from protected urea in soil under different irrigation depths
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| Format: | Artículo científico |
| Language: | en |
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Universidade Estadual de Maringá
2021
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| _version_ | 1876479152884809728 |
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| author | Marcelo Curitiba Espindula |
| author_facet | Marcelo Curitiba Espindula |
| contents | Ammonia loss from protected urea in soil under different irrigation depths Marcelo Curitiba Espindula Giovana Menoncin Rodovalho Alaerto Luiz Marcolan Iara Magalhães Barberena Henrique Nery Cipriani Larissa Fatarelli Bento de Araújo Agrociencias Nitrogen CO(NH2)2 volatilization urease inhibitors South Western Amazon 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. 2021 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303067924016 https://www.redalyc.org/journal/3030/303067924016/ https://www.redalyc.org/journal/3030/303067924016/html/ https://www.redalyc.org/journal/3030/303067924016/303067924016.epub https://www.redalyc.org/journal/3030/303067924016/movil 10.4025/actasciagron.v43i1.46764 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.43 |
| format | Artículo científico |
| id | redalyc_303067924016 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Ammonia loss from protected urea in soil under different irrigation depths Marcelo Curitiba Espindula Agrociencias Nitrogen CO(NH2)2 volatilization urease inhibitors South Western Amazon Ammonia loss from protected urea in soil under different irrigation depths Marcelo Curitiba Espindula Giovana Menoncin Rodovalho Alaerto Luiz Marcolan Iara Magalhães Barberena Henrique Nery Cipriani Larissa Fatarelli Bento de Araújo Agrociencias Nitrogen CO(NH2)2 volatilization urease inhibitors South Western Amazon 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. 2021 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303067924016 https://www.redalyc.org/journal/3030/303067924016/ https://www.redalyc.org/journal/3030/303067924016/html/ https://www.redalyc.org/journal/3030/303067924016/303067924016.epub https://www.redalyc.org/journal/3030/303067924016/movil 10.4025/actasciagron.v43i1.46764 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.43 |
| title | Ammonia loss from protected urea in soil under different irrigation depths |
| topic | Agrociencias Nitrogen CO(NH2)2 volatilization urease inhibitors South Western Amazon |
| url | https://www.redalyc.org/articulo.oa?id=303067924016 https://www.redalyc.org/journal/3030/303067924016/ https://www.redalyc.org/journal/3030/303067924016/html/ https://www.redalyc.org/journal/3030/303067924016/303067924016.epub https://www.redalyc.org/journal/3030/303067924016/movil |