Author
Santiago Javier Sarandón
Other affiliations: National University of La Pampa, Ceres
Bio: Santiago Javier Sarandón is an academic researcher from National University of La Plata. The author has contributed to research in topics: Agroecology & Tillage. The author has an hindex of 16, co-authored 99 publications receiving 966 citations. Previous affiliations of Santiago Javier Sarandón include National University of La Pampa & Ceres.
Topics: Agroecology, Tillage, Weed, Lolium multiflorum, Conventional tillage
Papers published on a yearly basis
Papers
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TL;DR: The results obtained would suggest that favourable weather conditions are likely to be more important than tillage practice and fertilizer treatments in decreasing FHB damage.
87 citations
TL;DR: It is concluded that tillage systems affect not only the abundance of arthropod fauna but also the proportion between different functional groups, and the consequences for soil quality are discussed later on.
79 citations
01 Jan 2002
TL;DR: Bejarano Avila et al. as discussed by the authors discuss the importance of volcar esfuerzos en pos de a agricultura sustentable that can satisfy the necesidades of presentes generaciones without comprometer the posibilidad de satisfaccion de las future generación.
Abstract: Actualmente ya no se discute la necesidad de volcar esfuerzos en pos de una agricultura sustentable que permita “satisfacer las necesidades de las presentes generaciones sin comprometer la posibilidad de satisfaccion de las futuras generaciones”. Sin embargo, en la practica, esto se ha quedado aun en una etapa declarativa, y no se ha hecho operativo el termino. Una de las razones de esta situacion es la dificultad de traducir los aspectos filosoficos e ideologicos de la sustentabilidad en la capacidad de tomar decisiones al respecto (Bejarano Avila, 1998). Las razones de esto son muy variadas, pero parte de la dificultad radica en los siguientes aspectos (Sarandon, 1998):
69 citations
TL;DR: In this article, the authors evaluate the risks involved when traditional agricultural management practices are applied to different ecological settings while the underlying ecological principles of those practices are not well understood, and suggest that traditional management practices may be ecologically sound when considered within their original ecological context, but may be inappropriate in new ecological settings.
66 citations
01 Jan 2009
TL;DR: In this paper, a methodology consisting in a series of steps leading to obtain a set of indicators to assess the sustainability of agroecosystems is proposed, which is necessary to provide technicians, agricultures, and politicians, reliable and understandable information on the impacts and costs of technology adoption.
Abstract: Despite its acceptance, sustainability has not been made operational, due, among other reasons, the difficulty of translating philosophical and ideological aspects in the ability to make decisions. This paper proposes a methodology consisting in a series of steps leading to obtain a set of indicators to assess the sustainability of agroecosystems. The use of simple and practical indicators is necessary to provide technicians, agricultures, and politicians, reliable and understandable information on the impacts and costs of technology adoption. The scope and limitations of this proposal are discussed.
64 citations
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TL;DR: Yield is usually more sink than source limited during seed filling in the three crops, though: interspecific variation exists in the magnitude of limitation, and intraspecific variability is larger in soybean than in cereals.
723 citations
TL;DR: The potential and limitations of conservation agriculture for low productivity, small-scale farming systems in Sub Saharan Africa and South Asia is discussed in this article. But, the authors highlight some research priorities for ecosystem services in conservational agriculture.
658 citations
TL;DR: Though most analyses of pathogen evolution in mixtures consider static costs of virulence to be the main mechanism countering selection for pathogen complexity, many other potential mechanisms need to be investigated.
Abstract: The usefulness of mixtures (multiline cultivars and cultivar mixtures) for disease management has been well demonstrated for rusts and powdery mildews of small grain crops. Such mixtures are more useful under some epidemiological conditions than under others, and experimental methodology, especially problems of scale, may be crucial in evaluating the potential efficacy of mixtures on disease. There are now examples of mixtures providing both low and high degrees of disease control for a wide range of pathosystems, including crops with large plants, and pathogens that demonstrate low host specificity, or are splash dispersed, soilborne, or insect vectored. Though most analyses of pathogen evolution in mixtures consider static costs of virulence to be the main mechanism countering selection for pathogen complexity, many other potential mechanisms need to be investigated. Agronomic and marketing considerations must be carefully evaluated when implementing mixture approaches to crop management. Practical difficulties associated with mixtures have often been overestimated, however, and mixtures will likely play an increasingly important role as we develop more sustainable agricultural systems.
600 citations
TL;DR: Five additional avenues that agronomic research could follow to strengthen the ecological intensification of current farming systems are proposed, assuming that progress in plant sciences over the last two decades provides new insight of potential use to agronomists.
433 citations
TL;DR: The need for increased sustainability of performance in cereal varieties, particularly in organic agriculture (OA), is limited by the lack of varieties adapted to organic conditions, and the needs for breeding are reviewed in the context of three major marketing types, global, regional, local, in European OA.
Abstract: The need for increased sustainability of performance in cereal varieties, particularly in organic agriculture (OA), is limited by the lack of varieties adapted to organic conditions. Here, the needs for breeding are reviewed in the context of three major marketing types, global, regional, local, in European OA. Currently, the effort is determined, partly, by the outcomes from trials that compare varieties under OA and CA (conventional agriculture) conditions. The differences are sufficiently large and important to warrant an increase in appropriate breeding. The wide range of environments within OA and between years, underlines the need to try to select for specific adaptation in target environments. The difficulty of doing so can be helped by decentralised breeding with farmer participation and the use of crops buffered by variety mixtures or populations. Varieties for OA need efficient nutrient uptake and use and weed competition. These and other characters need to be considered in relation to the OA cropping system over the whole rotation. Positive interactions are needed, such as early crop vigour for nutrient uptake, weed competition and disease resistance. Incorporation of all characteristics into the crop can be helped by diversification within the crop, allowing complementation and compensation among plants. Although the problems of breeding cereals for organic farming systems are large, there is encouraging progress. This lies in applications of ecology to organic crop production, innovations in plant sciences, and the realisation that such progress is central to both OA and CA, because of climate change and the increasing costs of fossil fuels.
377 citations