Tillage and cropping effects on selected properties of an Argiudoll in Argentina

Chagas, Celio Ignácio; Santanatoglia, O. J.; Castiglioni, Mario; Marelli, H.

doi:10.1080/00103629509369325

Cited by 17 publications

(7 citation statements)

References 24 publications

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“…While C depletion can largely be explained by increasing cropping under conventional tillage, no-till not only seems to prevent C depletion but also to boost a long-term C gain in soils. This behavior can be confirmed through experimental results (Alvarez et al, 1999Alvarez, 2001;Chagas et al, 1995;Miglierina et al, 2000;Studdert and Echeverría, 2000).…”

Section: Across the Study Regionsupporting

confidence: 76%

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

Viglizzo

Frank

Bernardos

et al. 2006

Environ Monit Assess

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The generation of reliable updated information is critical to support the harmonization of socio-economic and environmental issues in a context of sustainable development. The agro-environmental assessment and management of agricultural systems often relies on indicators that are necessary to make sound decisions. This work aims to provide an approach to (a) assess the environmental performance of commercial farms in the Pampas of Argentina, and (b) propose a methodological framework to calculate environmental indicators that can rapidly be applied to practical farming. 120 commercial farms scattered across the Pampas were analyzed in this study during 2002 and 2003. Eleven basic indicators were identified and calculation methods described. Such indicators were fossil energy (FE) use, FE use efficiency, nitrogen (N) balance, phosphorus (P) balance, N contamination risk, P contamination risk, pesticide contamination risk, soil erosion risk, habitat intervention, changes in soil carbon stock, and balance of greenhouse gases. A model named Agro-Eco-Index was developed on a Microsoft-Excel support to incorporate on-farm collected data and facilitate the calculation of indicators by users. Different procedures were applied to validate the model and present the results to the users. Regression models (based on linear and non-linear models) were used to validate the comparative performance of the study farms across the Pampas. An environmental dashboard was provided to represent in a graphical way the behavior of farms. The method provides a tool to discriminate environmentally friendly farms from those that do not pay enough attention to environmental issues. Our procedure might be useful for implementing an ecological certification system to reward a good environmental behavior in society (e.g., through tax benefits) and generate a commercial advantage (e.g., through the allocation of green labels) for committed farmers.

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Section: Across the Study Regionsupporting

confidence: 76%

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

Viglizzo

Frank

Bernardos

et al. 2006

Environ Monit Assess

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“…For Mollisols, Novelli et al (2013) reported quite similar results with higher AS in more balanced crop sequences. Also, comparing monocultures of soybean and maize after 15 years under NT, Chagas et al (1995) found that AS in the topsoil was significantly lower in the soybean treatment. Bronick and Lal (2005) mentioned that maize crop residues possess important amount of phenols, a high C:N ratio and high organic carbon and carbohydrates that determines an increment on aggregates stability.…”

Section: Aggregates Tests and Managementmentioning

confidence: 91%

Influence of edaphic and management factors on soils aggregates stability under no-tillage in Mollisols and Vertisols of the Pampa Region, Argentina

Kraemer

Morrás²,

Fernández

et al. 2021

Soil and Tillage Research

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“…Agricultural management in the extensive Pampa and Chaco plains of Argentina relies on no‐till farming (source: Aapresid, http://www.aapresid.org.ar) that accounts for about 27 million hectares, with an increasing simplification in crop sequence based mainly on soybean monoculture (Durán, Morrás, Studdert, & Liu, ; Viglizzo et al., ). Several adverse effects have been associated with this simplification such as lower organic carbon (OC), lower aggregate stability, modification of soil porosity due to a diminution of its total volume, as well as higher bulk density and development of platy structures (Chagas, Santanatoglia, Castiglioni, & Marelli, ; Novelli, Caviglia, & Melchiori, ; Novelli, Caviglia, Wilson, & Sasal, ; Sasal, Andriulo, & Taboada, ). Hence, the way soils are used in agriculture can deeply modify their architecture constitution (Pierce, Fortin, & Staton, ) with significant consequences on the soil structure and the soil–water interactions (Castiglioni, Behrends Kraemer, & Morras, ; Raynaud & Nunan, ; Reynolds, Bowman, Drury, Tana, & Lu, ).…”

Section: Introductionmentioning

confidence: 99%

Analysis of nifH‐RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N₂‐fixing community depending on depth and agricultural use of soil

et al. 2017

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In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were retrieved from soil RNA. This dataset extends our knowledge about the structure and diversity of the functional diazotrophic communities in agricultural soils from Argentinean Pampas. Operational taxonomic unit (OTU)‐based analyses showed that nifH phylotypes related to Geobacter and Anaeromyxobacter (44.8%), Rhizobiales (29%), Cyanobacteria (16.7%), and Verrucomicrobiales (8%) are key microbial components of N2 fixation in soils associated with no‐till management and soil depth. In addition, quantification of nifH gene copies related to Geobacter and Cyanobacteria revealed that these groups are abundant in soils under maize–soybean rotation and soybean monoculture, respectively. The correlation of physicochemical soil parameters with the diazotrophic diversity and composition showed that soil stability and organic carbon might contribute to the functional signatures of particular nifH phylotypes in fields under no‐till management. Because crop production relies on soil‐borne microorganism's activities, such as free N2 fixation, the information provided by our study on the diazotrophic population dynamics, associated with the edaphic properties and land‐use practices, represents a major contribution to gain insight into soil biology, in which functionally active components are identified.

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Tillage and cropping effects on selected properties of an Argiudoll in Argentina

Cited by 17 publications

References 24 publications

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

Influence of edaphic and management factors on soils aggregates stability under no-tillage in Mollisols and Vertisols of the Pampa Region, Argentina

Analysis of nifH‐RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N₂‐fixing community depending on depth and agricultural use of soil

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Tillage and cropping effects on selected properties of an Argiudoll in Argentina

Cited by 17 publications

References 24 publications

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

A Rapid Method for Assessing the Environmental Performance of Commercial Farms in the Pampas of Argentina

Influence of edaphic and management factors on soils aggregates stability under no-tillage in Mollisols and Vertisols of the Pampa Region, Argentina

Analysis of nifH‐RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2‐fixing community depending on depth and agricultural use of soil

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Analysis of nifH‐RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N₂‐fixing community depending on depth and agricultural use of soil