Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit
The use of urease inhibitors in irrigated systems decreases both soil ammonium (NH<sub>4</sub><sup>+</sup>) and nitrate (NO<sub>3</sub><sup>−</sup>) availability, and, thus, could be an easy tool to reduce N loss due to ammonia volatilization and NO<...
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MDPI AG
2021-07-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/11/7/684 |
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| author | Raúl Allende-Montalbán Diana Martín-Lammerding María del Mar Delgado Miguel A. Porcel José L. Gabriel |
| author_facet | Raúl Allende-Montalbán Diana Martín-Lammerding María del Mar Delgado Miguel A. Porcel José L. Gabriel |
| author_sort | Raúl Allende-Montalbán |
| collection | DOAJ |
| description | The use of urease inhibitors in irrigated systems decreases both soil ammonium (NH<sub>4</sub><sup>+</sup>) and nitrate (NO<sub>3</sub><sup>−</sup>) availability, and, thus, could be an easy tool to reduce N loss due to ammonia volatilization and NO<sub>3</sub><sup>−</sup> leaching. The main goal of this experiment was to assess the effect of urease inhibitors on N use efficiency, N losses, and their economic impact in a maize-wheat field experiment. In this study, 10 treatments were compared, combining the urea fertilizer with or without urease inhibitor, applied in one or two dressings, and under optimal or sub-optimal irrigation. A single application of urease inhibitor (IN<sub>1d</sub>), coupled with the conventional urea, helped to reduce the nitrate leaching risk both during the maize period (even when compared to the two dressing treatment) and after harvest. In addition, this improvement was achieved together with an increase in economic benefit, even when compared with the application of the same amount of regular urea split into two dressings. Under low water availability systems, the benefits of applying urease inhibitors increased with respect to the application of regular urea, making this technique a very promising strategy for adaptation to climate change in arid and semiarid regions. |
| first_indexed | 2024-03-10T09:48:58Z |
| format | Article |
| id | doaj.art-87fbc888c8484cf8a42071f505911c9d |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T09:48:58Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-87fbc888c8484cf8a42071f505911c9d2023-11-22T02:57:43ZengMDPI AGAgriculture2077-04722021-07-0111768410.3390/agriculture11070684Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water DeficitRaúl Allende-Montalbán0Diana Martín-Lammerding1María del Mar Delgado2Miguel A. Porcel3José L. Gabriel4Environment and Agronomy Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Ctra. de la Coruña km. 7,5, 28040 Madrid, SpainEnvironment and Agronomy Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Ctra. de la Coruña km. 7,5, 28040 Madrid, SpainEnvironment and Agronomy Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Ctra. de la Coruña km. 7,5, 28040 Madrid, SpainEnvironment and Agronomy Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Ctra. de la Coruña km. 7,5, 28040 Madrid, SpainEnvironment and Agronomy Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Ctra. de la Coruña km. 7,5, 28040 Madrid, SpainThe use of urease inhibitors in irrigated systems decreases both soil ammonium (NH<sub>4</sub><sup>+</sup>) and nitrate (NO<sub>3</sub><sup>−</sup>) availability, and, thus, could be an easy tool to reduce N loss due to ammonia volatilization and NO<sub>3</sub><sup>−</sup> leaching. The main goal of this experiment was to assess the effect of urease inhibitors on N use efficiency, N losses, and their economic impact in a maize-wheat field experiment. In this study, 10 treatments were compared, combining the urea fertilizer with or without urease inhibitor, applied in one or two dressings, and under optimal or sub-optimal irrigation. A single application of urease inhibitor (IN<sub>1d</sub>), coupled with the conventional urea, helped to reduce the nitrate leaching risk both during the maize period (even when compared to the two dressing treatment) and after harvest. In addition, this improvement was achieved together with an increase in economic benefit, even when compared with the application of the same amount of regular urea split into two dressings. Under low water availability systems, the benefits of applying urease inhibitors increased with respect to the application of regular urea, making this technique a very promising strategy for adaptation to climate change in arid and semiarid regions.https://www.mdpi.com/2077-0472/11/7/684sustainable cropping systemsnitrate leachingammonia volatilizationfertilizer management |
| spellingShingle | Raúl Allende-Montalbán Diana Martín-Lammerding María del Mar Delgado Miguel A. Porcel José L. Gabriel Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit Agriculture sustainable cropping systems nitrate leaching ammonia volatilization fertilizer management |
| title | Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit |
| title_full | Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit |
| title_fullStr | Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit |
| title_full_unstemmed | Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit |
| title_short | Urease Inhibitors Effects on the Nitrogen Use Efficiency in a Maize–Wheat Rotation with or without Water Deficit |
| title_sort | urease inhibitors effects on the nitrogen use efficiency in a maize wheat rotation with or without water deficit |
| topic | sustainable cropping systems nitrate leaching ammonia volatilization fertilizer management |
| url | https://www.mdpi.com/2077-0472/11/7/684 |
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