Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification
Soils under no tillage have experienced unfavorable changes, mainly due to current agricultural practices that consist in monocultures that leave little residue cover. The inclusion of grass as cover crops during the winter season could be a sustainable strategy to increase crop intensification in s...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/2905 https://www.sciencedirect.com/science/article/pii/S0167198718303817?via%3Dihub https://doi.org/10.1016/j.still.2018.04.014 |
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| author | Romaniuk, Romina Ingrid Beltran, Marcelo Javier Brutti, Lucrecia Noemi Costantini, Alejandro Oscar Bacigaluppo, Silvina Sainz Rozas, Hernan Rene Salvagiotti, Fernando |
| author_browse | Bacigaluppo, Silvina Beltran, Marcelo Javier Brutti, Lucrecia Noemi Costantini, Alejandro Oscar Romaniuk, Romina Ingrid Sainz Rozas, Hernan Rene Salvagiotti, Fernando |
| author_facet | Romaniuk, Romina Ingrid Beltran, Marcelo Javier Brutti, Lucrecia Noemi Costantini, Alejandro Oscar Bacigaluppo, Silvina Sainz Rozas, Hernan Rene Salvagiotti, Fernando |
| author_sort | Romaniuk, Romina Ingrid |
| collection | INTA Digital |
| description | Soils under no tillage have experienced unfavorable changes, mainly due to current agricultural practices that consist in monocultures that leave little residue cover. The inclusion of grass as cover crops during the winter season could be a sustainable strategy to increase crop intensification in sequences where soybean predominates, helping to maintain soil fertility, organic matter levels and enhance soil physical properties. The aim of this research was to evaluate the effects of 8 years of sustainable crop intensification (by increasing the proportion of cereals in crop rotations) on soil organic carbon, macro- and micronutrients associated with granulometric fractions of different lability in a Typic Argiudoll of the Rolling Pampa, Argentina. The experiment included two crop sequences commonly used in this area: soybean-soybean (S-S) and maize-soybean-wheat/soybean (M-S-W/S) combined with the inclusion of wheat (Triticum aestivum L.) as cover crop (CC) in winter. The intensification sequence indices (ISI) were 0.39, 0.69, 0.55 and 0.64 for S-S, S-CC-S, M-S-W/S and M-CC-S-W/S, respectively. The carbon measured in the coarse particulate fraction (Pcf) in the 0–5 cm soil depth was 3 times larger in S-CC-S than in S-S. Cropping intensity also modified N, S, P, Ca and Mn in the Pcf with no changes in Mg, K, Zn, Fe and Cu contents. Among the carbon fractions studied, only the carbon measured in the Pcf and the easy mineralizable carbon estimated by the soil respiration in the first soil layer (0–5 cm), were positively correlated with the ISI. In the present study, 8 years under sustainable crop intensification were sufficient to show changes in the mineral associated fraction (Maf). Increases in the C in the Maf in maize legume-based rotation, suggest SOC accumulation in more stable carbon pools. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2905 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA29052018-07-27T15:11:18Z Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification Romaniuk, Romina Ingrid Beltran, Marcelo Javier Brutti, Lucrecia Noemi Costantini, Alejandro Oscar Bacigaluppo, Silvina Sainz Rozas, Hernan Rene Salvagiotti, Fernando Oligoelementos Intensificación Explotación Agrícola Intensiva Plantas de Cobertura Cero-labranza Fracciones del Suelo Suelo Soil Separates Soil Zero Tillage Cover Plants Intensive Farming Intensification Trace Elements Carbono Orgánico del Suelo Región Pampena Soils under no tillage have experienced unfavorable changes, mainly due to current agricultural practices that consist in monocultures that leave little residue cover. The inclusion of grass as cover crops during the winter season could be a sustainable strategy to increase crop intensification in sequences where soybean predominates, helping to maintain soil fertility, organic matter levels and enhance soil physical properties. The aim of this research was to evaluate the effects of 8 years of sustainable crop intensification (by increasing the proportion of cereals in crop rotations) on soil organic carbon, macro- and micronutrients associated with granulometric fractions of different lability in a Typic Argiudoll of the Rolling Pampa, Argentina. The experiment included two crop sequences commonly used in this area: soybean-soybean (S-S) and maize-soybean-wheat/soybean (M-S-W/S) combined with the inclusion of wheat (Triticum aestivum L.) as cover crop (CC) in winter. The intensification sequence indices (ISI) were 0.39, 0.69, 0.55 and 0.64 for S-S, S-CC-S, M-S-W/S and M-CC-S-W/S, respectively. The carbon measured in the coarse particulate fraction (Pcf) in the 0–5 cm soil depth was 3 times larger in S-CC-S than in S-S. Cropping intensity also modified N, S, P, Ca and Mn in the Pcf with no changes in Mg, K, Zn, Fe and Cu contents. Among the carbon fractions studied, only the carbon measured in the Pcf and the easy mineralizable carbon estimated by the soil respiration in the first soil layer (0–5 cm), were positively correlated with the ISI. In the present study, 8 years under sustainable crop intensification were sufficient to show changes in the mineral associated fraction (Maf). Increases in the C in the Maf in maize legume-based rotation, suggest SOC accumulation in more stable carbon pools. Instituto de Suelos Fil: Romaniuk, Romina Ingrid. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Beltran, Marcelo Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Brutti, Lucrecia Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Costantini, Alejandro Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina. Universidad de Buenos Aires. Facultad de Agronomía, Cátedra de Edafología; Argentina Fil: Bacigaluppo, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros; Argentina Fil: Sainz Rozas, Hernan Rene. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros; Argentina 2018-07-27T15:01:10Z 2018-07-27T15:01:10Z 2018 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2905 https://www.sciencedirect.com/science/article/pii/S0167198718303817?via%3Dihub 0167-1987 https://doi.org/10.1016/j.still.2018.04.014 eng info:eu-repo/semantics/restrictedAccess application/pdf Pampa (general region) Elsevier Soil and tillage research 181 : 136-143. (September 2018) |
| spellingShingle | Oligoelementos Intensificación Explotación Agrícola Intensiva Plantas de Cobertura Cero-labranza Fracciones del Suelo Suelo Soil Separates Soil Zero Tillage Cover Plants Intensive Farming Intensification Trace Elements Carbono Orgánico del Suelo Región Pampena Romaniuk, Romina Ingrid Beltran, Marcelo Javier Brutti, Lucrecia Noemi Costantini, Alejandro Oscar Bacigaluppo, Silvina Sainz Rozas, Hernan Rene Salvagiotti, Fernando Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title | Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title_full | Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title_fullStr | Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title_full_unstemmed | Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title_short | Soil organic carbon, macro- and micronutrient changes in soil fractions with different lability in response to crop intensification |
| title_sort | soil organic carbon macro and micronutrient changes in soil fractions with different lability in response to crop intensification |
| topic | Oligoelementos Intensificación Explotación Agrícola Intensiva Plantas de Cobertura Cero-labranza Fracciones del Suelo Suelo Soil Separates Soil Zero Tillage Cover Plants Intensive Farming Intensification Trace Elements Carbono Orgánico del Suelo Región Pampena |
| url | http://hdl.handle.net/20.500.12123/2905 https://www.sciencedirect.com/science/article/pii/S0167198718303817?via%3Dihub https://doi.org/10.1016/j.still.2018.04.014 |
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