Mostrar el registro sencillo del ítem

resumen

Resumen
Agricultural systems of the Argentinean Pampas generally use rotations of summer crops under no-tillage and apply fertilization at rates that do not compensate nutrient exports with grain harvest, resulting in negative balances and soil fertility loss. However, the humid climate, long fallow periods and soil factors enhance nitrogen (N) and phosphorus (P) leaching, which has a negative impact on freshwater ecosystems. We propose to evaluate the effect of [ver mas...]
dc.contributor.authorPortela, Silvina Isabel
dc.contributor.authorReixachs, Carolina
dc.contributor.authorTorti, Maria Juliana
dc.contributor.authorBeribe, Maria Jose
dc.contributor.authorGiannini, Ana Paula
dc.date.accessioned2024-02-20T10:09:08Z
dc.date.available2024-02-20T10:09:08Z
dc.date.issued2024-01
dc.identifier.issn0167-8809
dc.identifier.otherhttps://doi.org/10.1016/j.agee.2024.108897
dc.identifier.urihttp://hdl.handle.net/20.500.12123/16692
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S016788092400015X
dc.description.abstractAgricultural systems of the Argentinean Pampas generally use rotations of summer crops under no-tillage and apply fertilization at rates that do not compensate nutrient exports with grain harvest, resulting in negative balances and soil fertility loss. However, the humid climate, long fallow periods and soil factors enhance nitrogen (N) and phosphorus (P) leaching, which has a negative impact on freshwater ecosystems. We propose to evaluate the effect of soil type and replacement of fallow periods with cover crops on drainage and N and P leaching. We used lysimeters containing two Mollisols of contrasting texture and porosity (a Typic Argiudoll and a Typic Hapludoll), and cultivated between 2014 and 2022 with a maize-soybean rotation with (M-CC-S) and without (M-S) cover crops under no tillage. The amount of drainage varied with rainfall (p<0.01), was similar between soils and higher in M-S than in M-CC-S during the intercropping period (148 vs 96 mm, p<0.05). The correlation between daily rainfall and drainage was higher for the Typic Argiudoll (r=0.46 and 0.42, for M-S and M-CC-S, respectively) than for the Typic Hapludoll (0.28 and 0.23 for M-S and M-CC-S, respectively) when considering same-day events, and it decreased for the Typic Argiudoll (r=0.31 and 0.26, for the M-S and M-CC-S, respectively) but not for the Typic Hapludoll (0.28 and 0.21 for the M-S and M-CC-S, respectively) with a 1-day lag between series. The amount of N and P lost through leaching varied with drainage (p<0.01). Cover crops reduced nitrate leaching to a greater extent in the Typic Hapludoll (from 30.4 to 3.3 kg ha−1 period−1) than in the Typic Argiudoll (from 17.6 to 2.0 kg ha−1 period−1) (p<0.05). Soil type modified P leaching in M-S (0.32 and 0.11 kg ha−1 period−1 for the Typic Argiudoll and the Typic Hapludoll, respectively) and M-CC-S had intermediate P leaching (0.17 and 0.16 kg P ha−1 period−1 for the Argiudoll and Hapludoll, respectively) (p<0.05). We conclude that: 1) water flows through different channels in each soil, the rapid flow of the Typic Argiudoll probably occurs through preferential flow channels (macropores) while the slower flow of the Typic Hapludoll is probably associated to matrix porosity, 2) P leaching is related to soil type (Typic Argiudoll > Typic Hapludoll) and drainage reduction by cover crops off-sets P leaching through macropores in the Typic Argiudoll, and 3) cover crops reduce N leaching, due to drainage reduction and N retention in cover crop biomass.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.relationinfo:eu-repograntAgreement/2019-PD-E2-I044-001, Interacción de agroecosistemas y napas freáticas: innovaciones tecnológicas y organizacionales para su manejo a diferentes escalas
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/es_AR
dc.sourceAgriculture, Ecosystems and Environment 364 : 108897. (April 2024)es_AR
dc.subjectMaízes_AR
dc.subjectMaizeeng
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectSueloes_AR
dc.subjectSoileng
dc.subjectPlantas de Coberturaes_AR
dc.subjectCover Plantseng
dc.subjectLixiviaciónes_AR
dc.subjectLeachingeng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.subjectFósforoes_AR
dc.subjectPhosphoruseng
dc.subjectDrenajees_AR
dc.subjectDrainageeng
dc.subject.otherCultivos de Coberturaes_AR
dc.subject.otherFilled-in lysimeterseng
dc.subject.otherPreferential Flow Pathseng
dc.subject.otherRegión Pampeana
dc.titleContrasting effects of soil type and use of cover crops on nitrogen and phosphorus leaching in agricultural systems of the Argentinean Pampases_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)es_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Portela, Silvina Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; Argentinaes_AR
dc.description.filFil: Reixachs, Carolina. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Escuela de Ciencias Agrarias, Naturales y Ambientales (ECANA); Argentinaes_AR
dc.description.filFil: Torti, María Juliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Calidad de Alimentos, Suelos y Agua; Argentinaes_AR
dc.description.filFil: Beribe, María José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Estadística; Argentinaes_AR
dc.description.filFil: Giannini, Ana Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelo; Argentinaes_AR
dc.subtypecientifico


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

common

Mostrar el registro sencillo del ítem

info:eu-repo/semantics/restrictedAccess
Excepto si se señala otra cosa, la licencia del ítem se describe como info:eu-repo/semantics/restrictedAccess