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Mostrando ítems 1-12 de 12
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Cover crop benefit bacteria and increase aggregate-associate soil C and N storage
Fontana, Marianela B.; Novelli, Leonardo Esteban; Sterren, María A.; Uhrich, Walter G.; Rondán, Guillermo A.; Barbagelata, Pedro Anibal; Benintende, Silvia M. (Elsevier, 2024-03)The aim of this study was to analyze the effect of four crop sequences with different aboveground biomass and crop residue biochemical composition on biological soil variables, fractions of soil organic matter, and soil ... -
Crop sequence and P fertilization effects on soil P fractions under no-tillage
Appelhans, Stefania Carolina; Novelli, Leonardo Esteban; Melchiori, Ricardo Jose; Gutierrez Boem, Flavio Hernán; Caviglia, Octavio (Springer, 2021-05-27)Increasing cropping intensity may affect phosphorus (P) recycling through crop residue inputs, which may differ in soils with different productivity, P adsorption capacity, and P fertilization level. In three crop sequences: ... -
Diversified crop sequences to reduce soil nitrogen mining in agroecosystems
Novelli, Leonardo Esteban; Caviglia, Octavio; Jobbagy Gampel, Esteban Gabriel; Sadras, Victor Oscar (Elsevier, 2022-10)Nitrogen (N) is the primary driver of increased global food supply, but has environmental consequences from both under- and over-fertilisation. While over-fertilisation and reactive nitrogen release onto the environment ... -
Does the fertilisation strategy affect the long-term legacy phosphorus dynamic?
Appelhans, Stefania Carolina; Novelli, Leonardo Esteban; Melchiori, Ricardo Jose; Barbagelata, Pedro Anibal (Elsevier, 2024-02)Phosphorus (P) imbalances in agricultural systems are a global problem because they have environmental and economic impacts, like eutrophication when there is a soil P surplus and low crop productivity in P deficient soils. ... -
Increased cropping intensity improves crop residue inputs to the soil and aggregate-associated soil organic carbon stocks
Novelli, Leonardo Esteban; Caviglia, Octavio; Piñeiro, Gervasio (Elsevier, 2017-01)Many South American agroecosystems are based mainly on soybean [Glycine max (L.) Merr.] as a sole crop in the year, which has increased concerns regarding soil conservation and ecosystems sustainability. The increase in ... -
Land use intensity and cropping sequence effects on aggregate stability and C storage in a Vertisol and a Mollisol
Novelli, Leonardo Esteban; Caviglia, Octavio; Wilson, Marcelo German; Sasal, Maria Carolina (2013)The relevant change in land use duemainly to the rapid expansion of soybean cropping towards areas traditionally occupied for livestock purposes or with native grasslands of South America may have negative consequences on ... -
Microbial activity effect on aggregate stability after residue addition in a Mollisol and a Vertisol in the Pampas, Argentina
Novelli, Leonardo Esteban; Hass, Walter L.; Benintende, Silvia M.; Caviglia, Octavio (Elsevier, 2020-12)Crop residue addition to the soil promotes an increase in microbial activity and, as a consequence, may improve soil aggregate stability. However, this effect may be different in soils with contrasting aggregation agents. ... -
Nitrógeno incubado en anaerobiosis y su relación con el nitrógeno orgánico en diferentes fracciones = Mineralizable nitrogen in anaerobiosis and its relationship with different organic n pools
Gregorutti, Viviana Carolina; Novelli, Leonardo Esteban; Melchiori, Ricardo Jose; Ormaechea, María Valeria; Caviglia, Octavio (Asociación Argentina de la Ciencia del Suelo, 2014-07)Los diagnósticos de fertilidad nitrogenada usualmente utilizados no contemplan el aporte de la fracción orgánica del suelo. El nitrógeno (N) incubado en anaerobiosis (Nan), al igual que otras fracciones lábiles del N puede ... -
Optimizing resource productivity in soybean-based sequences through long-term crop intensification
Crespo, Cecilia; Novelli, Leonardo Esteban; Wyngaard, Nicolás; Martínez, Roberto Dionisio; Barraco, Miriam Raquel; Gudelj, Vicente Jorge; Barbagelata, Pedro Anibal; Barbieri, Pablo (Elsevier, 2023-10)Context: Cropping systems based on a single crop per year, such as soybean monoculture, result in an inefficient use of available resources and low productivity, and are usually related with a negative environmental impact. ... -
¿Puede wepp mejorar la predicción de la erosión de suelos respecto a USLE? = May wepp improve soil erosion prediction compared to usle?
Gvozdenovich, Jorge Jesús; Pérez Bidegain, Mario; Novelli, Leonardo Esteban; Barbagelata, Pedro Anibal (Asociación Argentina de la Ciencia del Suelo, 2017)La degradación de los suelos por erosión hídrica afecta su potencial productivo. En el área agrícola argentina este problema está magnificado por la presencia de paisajes ondulados, lluvias intensas y elevada frecuencia ... -
Stover quality and soil organic carbon in long-term nitrogen-fertilized maize
Melchiori, Ricardo Jose; Novelli, Leonardo Esteban; Gregorutti, Viviana Carolina; Caviglia, Octavio (Alliance of Crop, Soil, and Environmental Science Societies, 2014-09)Nitrogen fertilization often increases maize (Zea mays L.) grain yield but reduces the C/N ratio of stover returned to the soil, which may affect the soil organic carbon (SOC) balance. This study evaluated the long-term ... -
Validación del generador climático cligen para precedir la erosión hídrica en el norte de la región pampeana, Argentina = Validation of cligen climate generator to predict water erosion in the Northern Argentinean Pampas Region
Gvozdenovich, Jorge Jesús; Pérez Bidegain, Mario; Barbagelata, Pedro Anibal; Novelli, Leonardo Esteban (Asociación Argentina de la Ciencia del Suelo, 2017)Las actividades agropecuarias están generalmente orientadas al aumento de los rendimientos de los cultivos, maximizando el uso del recurso suelo. En este escenario, el clima juega un rol muy importante. Por esto es necesario ...