Combining cover crops and low nitrogen fertilization improves soil supporting functions
Background and aims: Cover crops may restore soil functions lost with single summer crop sequences enhancing soil organic carbon and nitrogen (SOC and SON) stocks. We investigated the effect of cover crops and low nitrogen (N) fertilization on SOC and SON and soil structure (pore size distribution a...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2019
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| Online Access: | https://link.springer.com/article/10.1007/s11104-019-04205-8 http://hdl.handle.net/20.500.12123/5622 https://doi.org/10.1007/s11104-019-04205-8 |
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| author | Restovich, Silvina Beatriz Andriulo, Adrian Enrique Armas- Herrera, Cecilia María Beribe, Maria Jose Portela, Silvina Isabel |
| author_browse | Andriulo, Adrian Enrique Armas- Herrera, Cecilia María Beribe, Maria Jose Portela, Silvina Isabel Restovich, Silvina Beatriz |
| author_facet | Restovich, Silvina Beatriz Andriulo, Adrian Enrique Armas- Herrera, Cecilia María Beribe, Maria Jose Portela, Silvina Isabel |
| author_sort | Restovich, Silvina Beatriz |
| collection | INTA Digital |
| description | Background and aims: Cover crops may restore soil functions lost with single summer crop sequences enhancing soil organic carbon and nitrogen (SOC and SON) stocks. We investigated the effect of cover crops and low nitrogen (N) fertilization on SOC and SON and soil structure (pore size distribution and aggregate stability), and connected changes with cover crop-related variables.
Methods: We used a six-year experiment with different winter cover crops in a maize-soybean rotation under no tillage with or without N fertilization of maize (32 kg ha−1).
Results: Most cover crops increased SOC (0.36 ± 0.23 Mg ha−1 yr.−1) and vetch also increased SON in the absence of N fertilization. With cover crops, N storage shifted from inorganic to more stable organic forms (SON and cover crop biomass). Cover crops except forage radish increased soil porosity favoring 300–60 μm macropores (0–10 cm depth). Soil aggregation at 0–5 cm depth was more stable with than without cover crops (43 and 25%, respectively). The effect of glomalin as aggregation agent was observed in the absence of N fertilization.
Conclusions: Increased N retention and input (in the case of vetch), combined with C input from cover crops, increased organic reserves and improved soil structure, enabling N fertilization reduction. |
| format | info:ar-repo/semantics/artículo |
| id | INTA5622 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| record_format | dspace |
| spelling | INTA56222019-08-12T18:32:49Z Combining cover crops and low nitrogen fertilization improves soil supporting functions Restovich, Silvina Beatriz Andriulo, Adrian Enrique Armas- Herrera, Cecilia María Beribe, Maria Jose Portela, Silvina Isabel Sistemas de Cultivo Plantas de Cobertura Suelo Gestión Ambiental Nitrógeno Fertilidad del Suelo Cropping Systems Cover Plants Soil Environmental Management Nitrogen Soil Fertility Cultivo de Cobertura Fertilización Nitrogenada Background and aims: Cover crops may restore soil functions lost with single summer crop sequences enhancing soil organic carbon and nitrogen (SOC and SON) stocks. We investigated the effect of cover crops and low nitrogen (N) fertilization on SOC and SON and soil structure (pore size distribution and aggregate stability), and connected changes with cover crop-related variables. Methods: We used a six-year experiment with different winter cover crops in a maize-soybean rotation under no tillage with or without N fertilization of maize (32 kg ha−1). Results: Most cover crops increased SOC (0.36 ± 0.23 Mg ha−1 yr.−1) and vetch also increased SON in the absence of N fertilization. With cover crops, N storage shifted from inorganic to more stable organic forms (SON and cover crop biomass). Cover crops except forage radish increased soil porosity favoring 300–60 μm macropores (0–10 cm depth). Soil aggregation at 0–5 cm depth was more stable with than without cover crops (43 and 25%, respectively). The effect of glomalin as aggregation agent was observed in the absence of N fertilization. Conclusions: Increased N retention and input (in the case of vetch), combined with C input from cover crops, increased organic reserves and improved soil structure, enabling N fertilization reduction. EEA Pergamino Fil: Restovich, Silvina Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Laboratorio Suelos; Argentina Fil: Andriulo, Adrián Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Laboratorio Suelos; Argentina Fil: Armas-Herrera, Cecilia María. Universidad de Zaragoza. Escuela Politécnica de Huesca; España Fil: Beribe, María José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Estadística; Argentina Fil: Portela, Silvina Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Laboratorio Suelos; Argentina 2019-08-12T18:25:29Z 2019-08-12T18:25:29Z 2019-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s11104-019-04205-8 http://hdl.handle.net/20.500.12123/5622 0032-079X 1573-5036 (Online) https://doi.org/10.1007/s11104-019-04205-8 eng info:eu-repo/semantics/restrictedAccess application/pdf Plant and Soil 440 (1-2) : 1-17 (July 2019) |
| spellingShingle | Sistemas de Cultivo Plantas de Cobertura Suelo Gestión Ambiental Nitrógeno Fertilidad del Suelo Cropping Systems Cover Plants Soil Environmental Management Nitrogen Soil Fertility Cultivo de Cobertura Fertilización Nitrogenada Restovich, Silvina Beatriz Andriulo, Adrian Enrique Armas- Herrera, Cecilia María Beribe, Maria Jose Portela, Silvina Isabel Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title | Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title_full | Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title_fullStr | Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title_full_unstemmed | Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title_short | Combining cover crops and low nitrogen fertilization improves soil supporting functions |
| title_sort | combining cover crops and low nitrogen fertilization improves soil supporting functions |
| topic | Sistemas de Cultivo Plantas de Cobertura Suelo Gestión Ambiental Nitrógeno Fertilidad del Suelo Cropping Systems Cover Plants Soil Environmental Management Nitrogen Soil Fertility Cultivo de Cobertura Fertilización Nitrogenada |
| url | https://link.springer.com/article/10.1007/s11104-019-04205-8 http://hdl.handle.net/20.500.12123/5622 https://doi.org/10.1007/s11104-019-04205-8 |
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