23-25 junio 2009, Republica Checa
Más información: http://www.vumop.cz/essc/
Autor: AACS
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Soil Organic Matters
23-25 junio, United Kingdom
Más información: http://www.rothamsted.bbsrc.ac.uk/Research/SoilOrganicMatters/
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14th International Clay Conference
Castellaneta M., Italia, del 14 al 20 de junio de 2009
The Associazione Italiana per lo Studio delle Argille (AISA), on behalf of the Association Internationale pour l’Etude des Argiles (AIPEA), is pleased to invite you to the 14th International Clay Conference. The theme of the Conference, Micro et Nano: Scientiae Mare Magnum, provides a unique opportunity for mineralogists, soil scientists, physicists, geochemists, engineers, chemists and for many other specialists to share ideas and knowledge on the boundless world of micro and nanoparticles: The Mare Magnum of the Sciences!
Más información: http://www.14icc.org/
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Impresiones de la visita a la exhibición de suelos “Dig It! The Secrets of Soils” del Smithsonian’s National Museum of Natural History.
Por Martin Torres Duggan.
El autor es el secretario del comité de Fertilidad del Suelo y Nutrición Vegetal de la AACS y trabaja en Tecnoagro S.R.L.
Características de la exhibición y temas presentados
Desde julio de 2008 se esta llevando a cabo una exhibición de suelos en el Museo Americano de Historia Natural (Smithsonian Institution) en Washington DC. La exhibición denominada “Dig it!, The Secrets of Soil” estará funcionando hasta enero de 2010. El objetivo de este breve escrito es comentar mi experiencia durante la visita a la exhibición de suelos que realicé a mediados de marzo en el marco de un viaje efectuado a Washington DC.
La exhibición esta estructurada en 6 áreas temáticas. Cada sector contaba con material interactivo, videos, infografías, etc. que permitía a los visitantes vincularse con el mundo de los suelos de un modo muy atractivo y didáctico.
El tipo de vocabulario utilizado y los contenidos presentados permitía una adecuada comprensión de los temas para personas no especializadas en la temática. La exhibición se ubicaba adyacente a las salas de geología, gemas y minerales, con varios puntos en común con la exhibición de suelos y recomendables para visitar y recorrer con tiempo.A continuación de describe los tópicos abordados en cada sección de la exhibición de suelos:
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Informe jornada “Calidad de los laboratorios de análisis de suelo. Herramientas para su acreditación” del Comisión de Estandarización de la AACS
En el mes de octubre de 2008 se realizó una jornada sobre la calidad de los laboratorios de análisis de suelo en las instalaciones de la Bolsa de Comercio de Rosario.
El Ing. Ariel Soso, subgerente del Departamento Técnico y Gestión de la Calidad de dicha casa disertó sobre la norma ISO/IEC 17025 (IRAM 301) Requisitos generales para la competencia de los laboratorios de ensayo y calibración. Paralelamente realizó la comparación con la norma de gestión de la calidad (ISO 9001) y enriqueció los distintos capítulos de la norma con sus experiencias en la acreditación de varios ensayos que allí se realizan.
A continuación se presentó un resumen del documento de EURACHEM “The fitness for purpose of analitycal methods. A laboratory guide to method validation and related topics”. El mismo está centrado en los motivos que hacen necesaria la validación de una metodología y cómo puede realizarse sin necesidad de participar en interlaboratorios. -
Publicaciones de Argentinos en 2008
Alvarez, C., R. Alvarez, A. Sarquis. 2008. Residues decomposition and fate of nitrogen-15 in a wheat crop under different previous crops and tillage systems. Comm. Soil Sci. Plant Anal. 39: 574-586 Alvarez, R. 2008. Analysis of yield response variability to nitrogen fertilization in experiments performed in the Argentine Pampas. Comm. Soil Sci. Plant 39: 1235-1244. Aparicio, V., Costa, J.L., Zamora, M. 2008. Nitrate leaching assessment in a long term experiment under supplementary irrigation in humid Argentina. Agricultural Water management 65: 83-94. DOIU 10.1016/) agwat.2008.06.03 Apezteguia, H.P., Izaurralde R.C., Sereno R. 2008. Simulation study of soil organic matter dynamics as affected by land use and agricultural practices in semiarid Córdoba, Argentina. Soil & Tillage Research. DOI:10.1016/j.still.2008.07.016 Barbieri, P.A., H.E. Echeverría, H. R. Saínz Rozas. 2008. Presidedress Soil Nitrogen Test for No-Tillage Maize at Different Row Spacing. Agron J 100:1101-1105. DOI: 10.2134/agronj2007.0130 Barbieri, P.A., H.E. Echeverría, H. R. Saínz Rozas, F. H. Andrade. 2008. Nitrogen Use Efficiency in Maize as Affected by Nitrogen Availability and Row Spacing. Agron J 100(4): 1101-1105 Barbieri, P.A., Sainz Rozas, H., Echeverria, H.E. 2008. Time of nitrogen application affects nitrogen use efficiency of wheat in the humid pampas of Argentina. Canadian Journal of Plant Science. 88: 849-857. Bedmar, F, J. L. Costa, D. Gimenez. 2008. Column tracer studies in surface and subsurface horizons of two typic argiudolls. Soil Science 173:237-247. Bisigato, A.J., Lopez Laphitz, R.M., Carrera, A.L. 2008. Non-linear relationships between grazing pressure and conservation. Journal of arid environments. 72: 1464-1475. Bono, A., R. Alvarez, D.E. Buschiazzo, R. Cantet. 2008.Tillage effects on soil carbon balance in a semiarid agroecosystem. Soil Sci. Soc. Am. J. 72: 1140-1149 Borrelli, N., Osterrieth, M., Marcovecchio, J. 2008. Interrelations of vegetal cover, silicophytolith content and pedogenesis of Typical Argiudolls of the Pampean Plain, Argentina. Catena 75: 146-153. Botta, G.F., Rivero, D., Tourn, M. Bellora Melcon, F., Pozzolo, O., Nardon, G., Balbuena, R., Tolon Becerra, A., Rosatto, H., Stadler, S. 2008. Soil compaction produced by tractor with radial and cross-ply tyres in two tillage regimes. Soil & Tillage Research. 101. 44-51. Buschiazzo, D.E., Zobeck, T. 2008. Wind erosion prediction using WEQ, RWEQ and WEPS in an Entic Haplustoll of the Argentinean Pampas. Earth Surface and Landscape Processes. 33: 1839-1850 Busso, C.A.,A.I. Bolletta. 2008. Soil Phosphorus Concentration under the Canopy of Perennial Grasses of Different Successional Stages Exposed to Water Stress. Communications in Soil Science and Plant Analysis, 39 (17 & 18): 2768 – 2783 Bisigato, A.J., Lopez Laphitz, R.M., Carrera, A.L. 2008. Non-linear relationships between grazing pressure and conservation. Journal of arid environments. 72: 1464-1475. Bono, A., R. Alvarez, D.E. Buschiazzo, R. Cantet. 2008.Tillage effects on soil carbon balance in a semiarid agroecosystem. Soil Sci. Soc. Am. J. 72: 1140-1149 Borrelli, N., Osterrieth, M., Marcovecchio, J. 2008. Interrelations of vegetal cover, silicophytolith content and pedogenesis of Typical Argiudolls of the Pampean Plain, Argentina. Catena 75: 146-153. Carlier,E., Rovera,M.,Rossi Jaume.A., Rosas,S. 2008. Improvement of growth, under field conditions, of wheat inoculated with Pseudomonas Chlororaphis subsp aurantiaca SR1. World Journal Microbiology and Biotechnology. 24: 2653-2658. Carrera, A.L ., Bertiller, M.B., Larreguy, C. 2008. Leaf litterfall, fine-root production, and descomposition in shrublands with different canopy structure induce by grazing in the Patagonian monte. Plant and Soil. 311: 39-50 Civeira, G. y R.S. Lavado. 2008. Nitrate losses, nutrients and heavy metal accumulation from substrates assembled for urban soils reconstruction Journal of Environmental Management 88: 1619-1623 Chavez, W., A. Di Benedetto, G. Civeira, R.S. Lavado. 2008. Alternative soilless media for growing Petunia x hybrida and Impatiens wallerana: physical behavior, effect of fertilization and nitrate losses. Bioresource Technology. DOI 10.1016/j.biortech.2008.03.063 Chuvieco, E., Opazo, S., Sione, W., del Valle, H.F., Anaya, J., Di Bella, C., Cruz, I, Manzo, L., López, G., Mari, N., González-Alonso, F., Morelli, F., Setzer, A., Csisza,r I., Kanpandegi, J.A., Bastarrika, A., Libonati R. 2008. Global burned land estimation in Latin America using MODIS composite data. Ecological Applications 18(1):64-79. Ciampitti I.A., E. Ciarlo, M.E. Conti. 2008. Nitrous oxide emissions from soil during soybean (Glycine max (L.) Merrill) crop phonological stages and stubbles decomposition period. Biology and Fertility of Soils 44:581-588. Ciarlo, E., Conti, M., Bartoloni, N., Rubio, G. 2008. Soil N2O emissions and N2O/(N2O+N 2) ratio as affected by different fertilization practices and soil moisture. Biology and Fertility of Soils 44: 991-995. Ciarlo E., Conti M., Bartoloni N., Rubio G. 2008. The effect of moisture on nitrous oxide emissions from soil and the N2O/(N2O+N2) ratio under laboratory conditions. Biology and Fertility of Soils 43: 675-681. DOI 10.1007/s00374-006-0147-9. Covacevich, F., Echeverría, H.E. Receptivity of an Argentinean Pampas Soil to Arbuscular Mycorrhizal Glomus and Acaulospora Strains.World Journal of Agricultural Sciences 4 (6): 688-698 Dardanelli, M.S., Fernández, F.J., Espuny, M.R., Rodriguez, M.A., Soria, M.E., Gil Serrano, A.M., Okon, Y., Megías, M. 2008. Effect of Azospirillum brasilense coinoculated with Rhizobium on Phaseolus vulgaris flavonoids and Nod factorproduction under salt stress. Soil and Biochemistry. 40:175-180. Delgado J.A., M. Shaffer, C. Hu, R. Lavado, J. Cueto-Wong, P. Joosse, D. Sotomayor, W. Colon, R. Follett, S. DelGrosso, S, X. Li and H. Rimski-Korsakov. 2008. An Index Approach to Assess Nitrogen Losses to the Environment. Ecological Engineering 32: 108-120. Del Valle, H. F, C. M. Rostragno, F. R. Coronato, P. J. Bouza, P. D. Blanco. 2008. Sand dune activity in north-eastern Patagonia. Journal of Arid Environments 72: 411-422. Díaz-Zorita, M., J.H. Grove, E. Perfect. 2008. Impact of Soil Water Content and Core Sampler Diameter at Sampling for Dry Soil Fragment-Size Distributions. Communications in Soil Science and Plant Analysis, 39 (17 & 18): 2752 – 2767 Di Ciocco, C., C. Coviella, E. Penon, M. Diaz-Zorita y S. Lopez. 2008. Short communication. Biological fixation of nitrogen and N balance in soybean crops in the pampas region. Spanish J. Agric. Res. 6: 114-119 Diehl, P; Mazzarino, M.J and Fontenla, S. 2008. Plant limiting nutrients in Andean-Patagonian woody species: Effects of interannual rainfall variation, soil fertility and mycorrhizal infection. Forest Ecology and Management. Corrected Proof, Available online 14 March 2008. DOI:10.1016/j.foreco.2008.02.003 Diovisalvi, G.F., N.V., Studdert, G.A., Monterubbianesi, M.G. 2008. Soil organic C and N fractions under continuous cropping with contrasting tillage systems on Mollisols of the southeastern pampas. Soil & Tillage Research DOI:10.1016/j.still.2008.07.020 Ewel, J. ,Mazzarino, M.J. 2008. Competition from below for light and nutrients shifts productivity among tropical species. Proceedings of the National Academy of Sciences 105 (48): 18836-18841. Eyras, M.C., Defossé, G.E., Dellatorre, F. 2008. Seaweed compost as an amendment for horticultural soils in Patagonia, Argentina. Compost Science and Utilization 16: 119-124. Farley, K.A., Piñeiro, G., Palmer, S.M., Jobbágy, E.G., Jackson, R.B. 2008. Stream acidification and base cation losses with grassland afforestation. Water Resource Research. 44: 1-10. Fernandez R., A. Quiroga, E. Noellemeyer, D. Funaro, J. Montoya, B Hitzmann, N. Peinemann. 2008. A study of the effect of the interaction between site-specific conditions, residue cover and weed control on water storage during fallow. Agricultural Water Management. 95:1028-1040. Fernandez Cirelli, A., Ojeda , C., Castro, M. J. L. and Salgot, M. 2008. Surfactants in sludge-amended agricultural soils. Environmental Chemistry Letters. 6. 3: 135-148 . Ferrari A.E. y L.G. Wall. 2008. Co-inoculation of black locust with Rhizobium and Glomus on a desurfaced soil. Soil Science 173: 195-202. García, I., Mendoza, R. 2008. Relationships among soil properties, plant nutrition and arbuscular mycorrhizal fungi-plant symbioses in a temperate grassland along hydrologic, saline and sodic gradients. FEMS Microbiology Ecology. 63: 359-371 García, I., Mendoza, R., Pomar, M.C. 2008. Deficit and excess of soil water impact on plant growth of Lotus tenuis by affecting nutrient uptake and arbuscular mycorrhizal symbiosis. Plant and Soil. 304: 117-131 Golluscio RA; Faigón A; Tanke M. 2006. Spatial distribution of roots and nodules and d 15 N evidence of nitrogen fixation in Adesmia volckmanni; a Patagonian leguminous shrub. Journal of Arid Environments 67:328-335. González, A. M., Reginato, J.C., Tarzia, D.A. 2008. A free-boundary model for anaerobiosis in saturated soil aggregates. Soil Science 173: 758-767. Gutierrez Boem F.H., C.R Alvarez, M.J. Cabello, P.L. Fernández, A. Bono, P. Prystupa, M.A. Taboada. 2008. Phosphorus retention on soil surface of tilled and non-tilled soils. Soil Science Society of America Journal 72: 1158–1162. Hempel, M., Botté, S.E., Negrin, V.L., Chiarello, M.N., Marcovecchio, J.E. 2008. The role of the smooth cordgrass Spartina alterniflora and associated sediments in the heavy metal biogeochemical cycle within Bahía Blanca estuary salt marshes. Journal of Soils and Sediments 8: 289-297. Heredia O.S. y Fernández Cirelli, A. 2008. Groundwater chemical pollution risk. Assessment through a soil attenuation index. Environmental Geology 53: 1345-1351. Mendez, Mariano J.; Buschiazzo, Daniel E. 2008.Derivation of Plant Growth Coefficients for the Use in Wind Erosion Models in Argentina. Soil Science. 173(7):468-479. Mendez, M. Buschiazzo, D.E. 2008.Canopy and residue cover effects on wind erosion of an Haplustoll in a semiarid environment of Argentina. Soil Science. 173: 468-469. Miretzky, P. and Fernandez Cirelli, A. 2008. Phosphates for Pb immobilization in soils.” Environ Chem Lett, 6:121-131. Noellemeyer, E., Frank, F., Alvarez, C. Morazzo, G., Quiroga, A. 2008. Carbon contents and aggregation related to soil physical and biological properties under a land-use sequence in the semiarid region of central Argentina. Soil & Tillage Research. 99. 179-190. Oddino CM, Marinelli AD, Zuza M, March GJ .2008. Influence of crop rotation and tillage on incidence of brown root rot of peanut caused by Fusarium solani in Argentina Canadian journal of Plant Pathology: 30: 575-580 Ojeda,C., Castro, M.J.L., and Salgot, M. 2008. Surfactants in sludge-amended agricultural soils: a review A. Fernández Cirelli, Environmental Chemistry Letters 6: 135-148. Panebianco, J.E. Buschiazzo, D.E. 2008. Wind erosion predictions with the Wind Erosion Equation (WEQ) using different climatic factors. Land Degradation and Development 19: 36–44. Piccolo, G.A., Andriulo, A.E., Mary, B. 2008. Changes in soil organic matter under different land management in Misiones province (Argentina). Scientia Agricola 65: 290-297. Podio, N.S., Guzmán, C.A., Merites, J.M. 2008. Microbial community structure in a silty clay loam soil after fumigation with three broad spectrum fungicides. Journal of Environmental Science and Health Part B 43, 333-340. Rampoldi, E. A. Hang, S., and E. Barriuso. 2008. Glyphosate mineralization: Effect of Temperature and soybean and corn crop residues. Chilean J. Agric. Res., 68:13-20 Reussi Calvo, N., Echeverría, H., Sainz Rozas, H. 2008. Usefulness Foliar Nitrogen-Sulphur Ratio in Spring Red Wheat. Journal of Plant Nutrition 31 (9):1612-1623. Rodriguez, M.B., A. Godeas, R.S. Lavado. 2008. Soil acidity changes in bulk soil and maize rhizosphere in response to nitrogen fertilization. Communication in Soil Science and Plant Analysis 39: 2597-2607. Rubio, G., M.J. Cabello, F.H. Gutiérrez Boem, E. Munaro. 2008. Estimating available soil P increases after P additions in Mollisols. Soil Science Soc. Amer. J. 72:1721-1727 Sainz Rozas,H., P.A. Calviño, H.E. Echeverría, P.A. Barbieri, M. Redolatti. 2008. Contribution of Anaerobically Mineralized Nitrogen to the Reliability of Planting or Presidedress Soil Nitrogen Test in Maize. Agron J 100: 1020-1025. Salvagiotti, F., Cassman, K.G., Specht, J.E., Walters, D.T., Weiss, A., Dobermann, A., 2008. Nitrogen uptake, fixation and response to fertilizer N in soybeans: A review. Field Crops Research 108, 1-13. Salvagiotti, F., Miralles, D.J., 2008. Radiation interception, biomass production and grain yield as affected by the interaction of nitrogen and sulfur fertilization in wheat. European Journal of Agronomy 28, 282-290. Santamaría, R., Aguirre, M.E., Commegna, M.A. 2008. Effects of sunflowers hull incorporation on the distribution of water extractable elements in the soil. Agrochimica 52: 243-252. Semmartin M., L.A. Garibaldi, E.J. Chaneton. 2008. Grazing history effects on above- and below-ground litter decomposition and nutrient cycling in two co-occurring grasses. Plant and soil 303:177-189. Shoebitz, M., C.M. Ribaudo, M.A. Pardo, M.L. Cantore, L. Ciampi, J. A. Curá. Plant growth promoting properties of a strain of Enterobacter ludwigii isolated from Lolium perenne rhizosphere. Soil Biology and Biochemistry. DOI: 10.1016/jsoilbio.2007.12.31 Silvani V., S. Fracchia, L. Fernandez, M. Pergola, A. Godeas. 2008. A simple method to obtain endophytic microorganisms from field-collected roots. Soil Biology and Biochemistry. 40: 1259-1263. Taboada, M. A., O. A. Barbosa and D. J. Cosentino. 2008. Null creation of air-filled structural pores by soil cracking and shrinkage in silty loamy soils. Soil Science173, 130-142. Tittonell, P., Corbeels, M., van Wijk, M.T., Vanlauwe, B., Giller, K.E., 2008. Combining organic and mineral fertilizers for integrated soil fertility management in smallholder farming systems of Kenya – explorations using the crop-soil model FIELD. Agronomy Journal 100, 1511-1526. Tittonell, P., Shepherd, K.D., Vanlauwe, B., Giller, K.E., 2008. Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya – an application of classification and regression tree analysis. Agriculture Ecosystems and Environment 123, 137-150. Tittonell, P., Vanlauwe, B., Corbeels, M., Giller, K.E., 2008. Yield gaps, nutrient use efficiencies and responses to fertilisers by maize across heterogeneous smallholder farms in western Kenya. Plant and Soil 313, 19–37. Tognetti, C. ; Mazzarino, M.J.. F. Laos. 2008. Compost of municipal organic waste: effects of different management practices on degradability and nutrient release capacity. Soil Biology and Biochemistry 40: 2290–2296. Torri, S. I. y Lavado, R.S. 2008. Dynamics of Cd, Cu and Pb added to soil through different kinds of sewage sludge. Journal of Waste Management 28: 831-842. Torri, S.I. and R. S. Lavado. 2008. Zinc distribution in soils amended with different kinds of sewage sludge. Journal of Environmental Management. Corrected Proof, Available online. DOI:10.1016/j.jenvman .2007.07.026 Velasco, R. H., Juri Ayub, J., Sansone, U. 2008 .Analysis of radionuclide transfer factor from soil to plant in tropical and subtropical environments. Applied Radiation and Isotopes. 66:1759-1763. Velázquez S., M. Cabello, G. Irrazabal, A. Godeas. 2008. Acaulosporaceae from El Palmar Nacional Park, Entre Rios, Argentina. Mycotaxon. 103: 171-188 Vico, L. I., Acebal, S.G. 2008. Adsorption of manganese (II) from aqueous solutions by Na-sepiolite and Na-palygorskite. Agrochimica 52: 209-225. Vivanco J., G. Rubio. 2008. For the love of roots and rhizosphere. Ecology.89: 590–591. Villamil, M.B., Miguez, F.E., Bollero, G.A., 2008. Multivariate Analysis and visualization of Soil Quality Data for No-Till Systems. Journal of environmental Quality. 37:1-7. Zabaloy, M.C., Garland, J.L., Gómez, M.A. 2008. An integrated approach to evaluate the impacts of the herbicides glyphosate, 2,4-D and metsulfuron-methyl on soil microbial communities in the Pampas region, Argentina. Applied Soil Ecology 40: 1-12. Zabaloy M. C. , M.A. Gómez. 2008. Microbial Respiration in Soils of the Argentine Pampas after Metsulfuron Methyl, 2,4-D, and Glyphosate Treatments Communications in Soil Science and Plant Analysis, 39: 370–385. Zamuner, E., Picone, L., Echeverría, H. 2008. Organic and inorganic phosphorus in Mollisol soil under different tillage practices. Soil & Tillage Research 99: 131-138. Zubillaga, M.S., R.S. Lavado. 2008. Accumulation and Movement of Four Potentially Toxic Elements in Soils Throughout Five Years, During and After Biosolid Application. American J. of Environmental Sciences 4(6): 576-582. Zubillaga, M.S., E. Bressan and R.S. Lavado. 2008. Heavy Metal Mobility in Polluted Soils: Effect of Different Treatments. American Journal of Enviroinmental Sciences 4(6): 620-624.
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Taller sobre Compostaje: Tecnología para la producción y el medio ambiente.
Ciudad de Bariloche (RN), del 21 al 22 de Mayo de 2009
– La Comisión “Suelos y Medio Ambiente” de la AACS fue electa en el curso del XXI Congreso Argentino de la Ciencia del Suelo, llevado a cabo en Potrero de los Funes, San Luís, en el pasado mes de mayo de 2008.
– Está integrada por el Ing. Agr. Raúl S. Lavado, presidente; la Dra. María Julia Mazzarino, vicepresidente y la Dra. Patricia Satti y la Lic. Agustina Branzini, vocales. La Comisión tiene entre sus objetivos la organización del Taller sobre Compostaje: Tecnología para la producción y el medio ambiente, que se realizará en la ciudad de Bariloche (RN) en los días 21 y 22 de Mayo de 2009.– El temario del Taller es amplio pues se considerarán el proceso del compostaje, las experiencias de producción de compost a partir de distintos residuos, las características del compost, su uso en distintas actividades productivas y paisajísticas y en actividades relacionadas con el medio ambiente. Se atenderán también los procedimientos analíticos para caracterizar distintos compost y se tratará el futuro de este proceso en Argentina y sus aspectos legales.
– Para el Taller están siendo invitados los principales especialistas del tema de nuestro país, tanto de Universidades, INTA, como empresas. Asistirá especialmente invitada la Dra. Maria Teresa Hernández del CEBAS-CSIC de Murcia. El Taller está abierto a técnicos, usuarios, estudiantes, productores y servirá de base para estructurar un libro que abarque la producción y los temas analíticos, los usos agrícolas, paisajísticos y ambientales del compost y las perspectivas legales en la argentina. Este sería el primer material escrito de esta naturaleza publicado en el país. -
Simposio “Fertilidad 2009” Mejores Prácticas de Manejo para una Mayor Eficiencia en la Nutrición de Cultivos
Centro de Convenciones Metropolitano Alto Rosario Shopping – Av. Intendente Lamas 610, (2000) Rosario, 12 y 13 de Mayo de 2009.
Organización: IPNI Cono Sur y Fertilizar Asociación Civil
Colaboración especial: AACS, INTA, AAPRESID, CREA Sur de Santa Fe, Facultad de Ciencias Agrarias (UNR), Fundación Producir Conservando
Objetivo: Presentar y discutir información actualizada en el manejo de la fertilidad de suelos y fertilización de cultivos en el país y el exterior. Las presentaciones estarán a cargo de distinguidos profesionales nacionales y extranjeros.
Audiencia: Profesionales de actividad oficial y privada. Estudiantes avanzados de Agronomía.
Costo: $500 antes del 31 de Marzo; $650 a partir del 1 de Abril (Incluye publicación y café). Estudiantes de grado: $250 con presentación de libreta universitaria hasta el 9 de Marzo (cupo limitado).