Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz
Agricultural challenge today is to maximize crop production reducing negative environmental impacts by efficiently use of resources and inputs. Objectives: i) to evaluate N2O emissions during a soybean-barley-maize rotation and their respective interperiods -chemical fallows (ChF) and cover crops (...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Asociación Argentina de la Ciencia del Suelo
2023
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| Online Access: | http://hdl.handle.net/20.500.12123/13835 http://www.ojs.suelos.org.ar/index.php/cds/article/view/740 |
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| author | Casanave Ponti, Sheila Mailén Videla, Cecilia del Carmen Rizzalli, Roberto Héctor Monterubbianesi, María Gloria García, Fernando Oscar Ortega, Facundo Miguel Andrade, Fernando Hector |
| author_browse | Andrade, Fernando Hector Casanave Ponti, Sheila Mailén García, Fernando Oscar Monterubbianesi, María Gloria Ortega, Facundo Miguel Rizzalli, Roberto Héctor Videla, Cecilia del Carmen |
| author_facet | Casanave Ponti, Sheila Mailén Videla, Cecilia del Carmen Rizzalli, Roberto Héctor Monterubbianesi, María Gloria García, Fernando Oscar Ortega, Facundo Miguel Andrade, Fernando Hector |
| author_sort | Casanave Ponti, Sheila Mailén |
| collection | INTA Digital |
| description | Agricultural challenge today is to maximize crop production reducing negative environmental impacts by efficiently use of resources and inputs. Objectives: i) to evaluate N2O emissions during a soybean-barley-maize rotation and their respective interperiods -chemical fallows (ChF) and cover crops (CC)-, and ii) to understand the relationships between N2O flow rates with soil mineral N content (Nmin), water-filled porous space (WFPS), and soil temperature (ST). N2O emissions were evaluated weekly under two management systems, ecological intensification (EI) and farmer current practices (FP). EI included higher N rates than FP, split N application, a cover crop (CC) after barley, among other management practices. Simultaneously to N2O emissions, Nmin, WFPS and ST were determined. The N2O fluxes were highest during crop periods (9-43, 6-61 and 4-104 μg N2O-N m-2 h-1, for soybean, barley and maize, respectively), intermediate during barley-maize interperiod (2-47 and 3-35 μg N2O-N m-2 h-1, for CC and ChF, respectively) and lowest during ChF of maize-soybean and soybean-barley interperiods (1-26 and 5-22 μg N2O-N m-2 h-1, respectively). Regression tree provided threshold splits for the effect of soil variables on emission rates: 7.4 mg N kg-1 for Nmin; 10.35 or 8.7°C for ST, depending on Nmin and WPFS values; 39.6 and 55.4 % for WPFS, both with high N. There were no significant differences in accumulated N2O emissions between management systems for the complete sequence (3050 and 3380 g N2O-N ha-1, for EI and FP, respectively). Yield-based N2O emissions for the complete sequence were lower for EI than for FP. EI decreased yield-scaled N2O emissions by 29% for soybean (p<0.05) and barley (ns) and by 30% for maize (p<0.05) compared with FP. In conclusion for the complete sequence, the EI system did not increase N2O emissions per unit area and reduced emissions per unit yield despite utilizing higher N rates and including a CC. |
| format | info:ar-repo/semantics/artículo |
| id | INTA13835 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Asociación Argentina de la Ciencia del Suelo |
| publisherStr | Asociación Argentina de la Ciencia del Suelo |
| record_format | dspace |
| spelling | INTA138352023-01-06T10:40:20Z Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz Casanave Ponti, Sheila Mailén Videla, Cecilia del Carmen Rizzalli, Roberto Héctor Monterubbianesi, María Gloria García, Fernando Oscar Ortega, Facundo Miguel Andrade, Fernando Hector Impacto Ambiental Rotación de Cultivos Métodos estadíscos Environmental Impact Crop Rotation Statistical Methods Agricultural challenge today is to maximize crop production reducing negative environmental impacts by efficiently use of resources and inputs. Objectives: i) to evaluate N2O emissions during a soybean-barley-maize rotation and their respective interperiods -chemical fallows (ChF) and cover crops (CC)-, and ii) to understand the relationships between N2O flow rates with soil mineral N content (Nmin), water-filled porous space (WFPS), and soil temperature (ST). N2O emissions were evaluated weekly under two management systems, ecological intensification (EI) and farmer current practices (FP). EI included higher N rates than FP, split N application, a cover crop (CC) after barley, among other management practices. Simultaneously to N2O emissions, Nmin, WFPS and ST were determined. The N2O fluxes were highest during crop periods (9-43, 6-61 and 4-104 μg N2O-N m-2 h-1, for soybean, barley and maize, respectively), intermediate during barley-maize interperiod (2-47 and 3-35 μg N2O-N m-2 h-1, for CC and ChF, respectively) and lowest during ChF of maize-soybean and soybean-barley interperiods (1-26 and 5-22 μg N2O-N m-2 h-1, respectively). Regression tree provided threshold splits for the effect of soil variables on emission rates: 7.4 mg N kg-1 for Nmin; 10.35 or 8.7°C for ST, depending on Nmin and WPFS values; 39.6 and 55.4 % for WPFS, both with high N. There were no significant differences in accumulated N2O emissions between management systems for the complete sequence (3050 and 3380 g N2O-N ha-1, for EI and FP, respectively). Yield-based N2O emissions for the complete sequence were lower for EI than for FP. EI decreased yield-scaled N2O emissions by 29% for soybean (p<0.05) and barley (ns) and by 30% for maize (p<0.05) compared with FP. In conclusion for the complete sequence, the EI system did not increase N2O emissions per unit area and reduced emissions per unit yield despite utilizing higher N rates and including a CC. El desafío de la agricultura actual es maximizar la producción agrícola reduciendo impactos ambientales negativos, optimizando la eficiencia de uso de recursos e insumos. Objetivos i) evaluar emisiones de N2O durante una rotación soja-cebada-maíz y sus respectivos interperíodos -barbechos químicos (ChF) y cultivos de cobertura (CC)-, y ii) comprender las relaciones entre emisión de N2O con N mineral (Nmin), espacio poroso lleno de agua (WFPS) y temperatura de suelo (ST). Las emisiones de N2O se evaluaron semanalmente bajo dos sistemas de manejo: intensificación ecológica (EI) y prácticas agrícolas actuales (FP). EI incluyó mayores tasas de N que FP, aplicación dividida de N, cultivo de cobertura (CC) después de la cebada, entre otras prácticas. Los flujos de N2O fueron mayores durante los cultivos (9-43, 6-61 y 4-104 μg N2O-N m-2h-1, para soja, cebada y maíz, respectivamente), intermedios durante el interperíodo cebada-maíz (2-47 y 3-35 μg N2O-N m-2h-1, para CC y CHF, respectivamente) y menor durante CHF de interperíodos maíz-soja y soja-cebada (1-26 y 5-22 μg N2O-N m-2h-1, respectivamente). El árbol de regresión proporcionó los siguientes umbrales: 7,4 mg N kg-1 para Nmin; 10.35 o 8.7°C para ST, dependiendo de los valores de Nmin y WPFS; 39.6 y 55.4 % para WPFS, ambos con alto N. No hubo diferencias significativas en emisiones acumuladas de N2O entre sistemas de manejo para la secuencia completa (3050 y 3380 g N2O-N ha-1, para EI y FP, respectivamente). Las emisiones de N2O totales a escala rendimiento fueron menores para EI que para FP, con una reducción de 29 % para soja (p<0,05) y cebada (ns) y en 30 % para maíz (p<0,05) en comparación con FP. En conclusión, para la secuencia completa, EI no aumentó las emisiones de N2O por unidad de área y redujo las emisiones por unidad de rendimiento, a pesar de utilizar tasas más altas de N e incluir un CC. EEA Balcarce Instituto de Patobiología Fil: Casanave Ponti, Sheila Mailén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Videla, Cecilia del Carmen. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Rizzalli, Roberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Monterubbianesi, María Gloria. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: García, Fernando Oscar. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Ortega, Facundo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Andrade, Fernando Héctor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. 2023-01-06T10:34:55Z 2023-01-06T10:34:55Z 2022-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13835 http://www.ojs.suelos.org.ar/index.php/cds/article/view/740 1850-2067 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Asociación Argentina de la Ciencia del Suelo Ciencia del Suelo 40 (2) : 208-226 (diciembre 2022) |
| spellingShingle | Impacto Ambiental Rotación de Cultivos Métodos estadíscos Environmental Impact Crop Rotation Statistical Methods Casanave Ponti, Sheila Mailén Videla, Cecilia del Carmen Rizzalli, Roberto Héctor Monterubbianesi, María Gloria García, Fernando Oscar Ortega, Facundo Miguel Andrade, Fernando Hector Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title | Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title_full | Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title_fullStr | Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title_full_unstemmed | Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title_short | Ecological intensification decreased yield-scaled N20 emissions in a soybean-barley- maize sequence = La intensificación ecológica redujo las emisiones de N2O a escala de rendimiento en una secuencia de soja-cebada-maíz |
| title_sort | ecological intensification decreased yield scaled n20 emissions in a soybean barley maize sequence la intensificacion ecologica redujo las emisiones de n2o a escala de rendimiento en una secuencia de soja cebada maiz |
| topic | Impacto Ambiental Rotación de Cultivos Métodos estadíscos Environmental Impact Crop Rotation Statistical Methods |
| url | http://hdl.handle.net/20.500.12123/13835 http://www.ojs.suelos.org.ar/index.php/cds/article/view/740 |
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