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In the Argentina Pampas, one of the most extensive agricultural areas in the temperate fringe of southern hemisphere, soil health is jeopardized mostly by the decline of physical and biological properties due to soil fragility and agricultural managements, even under No-tillage (NT). In this study, topsoil physical health of three Mollisols and one Vertisol under two agricultural managements with no-tillage (good and poor agricultural practices -GAP and PAP-, differing mostly in their cropping intensity -CI-) was evaluated by the indirect measurement of porosity features. Two types of pore features derived from soil water release curves (SWRC) of undisturbed samples at three depths (0.0–0.05, 0.05–0.010 and 0.010–0.20 m) were employed: a) pores size distribution (>1000, 300, 50 and < 50 µm) and b) pore volume density parameters: location (Dmode, Dmean and Dmedian) and shape (SD, Skewness and Kurtosis). Pore parameters were related to management variables, to clay mineralogy and to several soil physical and chemical properties allowing to i) evaluate the effects of cropping intensification on soil physical properties; ii) evaluate the effects of intrinsic and dynamics factors on the behaviour of pore variable; iii) build an optimal pore size frequency curve to assess soil health. Among all porosity features assessed, PMac>300 µm and Dmode showed close relationships with agricultural management variables and were positively related to a labile organic carbon fraction (POCc) and to the aggregates stability tests, regardless of the soil type. Thus, they both may be selected as sound indicators of physical health status of different pampean soils under NT cultivation. Particularly, in the PAP treatments and for the three depths evaluated, PMac>300 µm showed values below critical thresholds, highlighting the physical deterioration of soils subjected to this management. Cropping intensification expressed by the CI index was also strongly related with large pores and soil properties (i.e. organic carbon and aggregates stability). These results demonstrate that cropping intensification expressed by the CI index was effective to counteract compaction processes in a variety of soils of the Pampa region and must be seen as an important strategy to avoid porosity loss and to improve the benefits of NT. Fil: Kraemer, Filipe Behrends. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Manejo y Conservación de Suelos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Castiglioni, Mario Guillermo. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Conservación y Manejo de Suelos; Argentina Fil: Morras, Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Fernández, Patricia Lilia. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Manejo y Conservación de Suelos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Alvarez, Carina Rosa. Universidad de Buenos Aires. Facultad de Agronomía; Argentina

For agronomic, environmental, and economic reasons, the need for spatialized information about agricultural practices is expected to rapidly increase. In this context, we reviewed the literature on remote sensing for mapping cropping practices. The reviewed studies were grouped into three categories of practices: crop succession (crop rotation and fallowing), cropping pattern (single tree crop planting pattern, sequential cropping, and intercropping/agroforestry), and cropping techniques (irrigation, soil tillage, harvest and post-harvest practices, crop varieties, and agro-ecological infrastructures). We observed that the majority of the studies were exploratory investigations, tested on a local scale with a high dependence on ground data, and used only one type of remote sensing sensor. Furthermore, to be correctly implemented, most of the methods relied heavily on local knowledge on the management practices, the environment, and the biological material. These limitations point to future research directions, such as the use of land stratification, multi-sensor data combination, and expert knowledge-driven methods. Finally, the new spatial technologies, and particularly the Sentinel constellation, are expected to improve the monitoring of cropping practices in the challenging context of food security and better management of agro-environmental issues. Fil: Bégué, Agnès. Institut National de la Recherche Agronomique; Francia. Université Montpellier II; Francia Fil: Arvor, Damien. Centre National de la Recherche Scientifique; Francia Fil: Bellon, Beatriz. Institut National de la Recherche Agronomique; Francia. Université Montpellier II; Francia Fil: Betbeder, Julie. Institut National de la Recherche Agronomique; Francia Fil: de Abelleyra, Diego. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires; Argentina. Instituto de Clima y Agua; Argentina Fil: Ferraz, Rodrigo P. D.. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil Fil: Lebourgeois, Valentine. Institut National de la Recherche Agronomique; Francia Fil: Lelong, Camille. Institut National de la Recherche Agronomique; Francia Fil: Simões, Margareth. Universidade do Estado de Rio do Janeiro; Brasil. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil Fil: Verón, Santiago Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires; Argentina

El proyecto busca Identificar áreas con potencial para cultivos de cuatro especies agroindustriales en la provincia Tahuamanu que tiene una superficie de 2´031458 has, donde existe un buen capital de recursos naturales, y por donde pasa el proyecto vial más importante en la zona sur del país, como es la carretera Interoceánica. Los criterios utilizados como el clima (temperatura media, y precipitación), de balance hídrico (déficit y exceso hídrico), del suelo (profundidad efectiva, textura, pH, materia orgánica y drenaje) y de la fisiografía (altitud relativa y pendiente) son aquellos considerados los más determinantes y críticos para el crecimiento y desarrollo de especies como castaña (Bertholletia excelsa), copoazú (Theobroma grandiflorum), piña (Ananas comosus) y plátanos (Musa sp.), especies más importantes para provincia de Tahuamanu, vistos como potenciales para la implementación de sistemas de producción diversificados. El trabajo se complementó con revisión de información bibliográfica y encuesta a expertos.