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Propuesta de metodología para el desarrollo de modelos de labranza Parte II. Índices de caracterización fisicomecánica del suelo y desarrollo de un modelo de labranza
Keywords:
Propiedades físicas del suelo, Modelos de labranza, Resistencia del suelo, Porosidad total, Macroporosidad, Conductividad hidráulica, Densidad aparente (es)Soil physical properties, Tillage models, Soil resistance, Total porosity, Macroporosity, Hydraulic conductivity, Bulk density (en)
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Se presentó una propuesta para la elaboración de modelos de labranza que permite tomar decisiones sobre sistemas de preparación de suelos (incluyendo la opción de cero labranza) a partir de mediciones de la condición de éstos. Luego de seguir un plan de muestreo de diversos parámetros fisicomecánicos del suelo y de un proceso estadístico de correlación, se eligieron como variables representativas: la densidad aparente, el índice de cono, el contenido de humedad y la cohesión (caja de torsión, prueba in situ); tales parámetros no solo están bien relacionados entre sí, sino que además hacen posible estimar adecuadamente otras variables de interés como la porosidad total, la macroporosidad, la conductividad hidráulica y en general la resistencia del suelo, lo cual hace viable elegir métodos de remoción del suelo en función del estado inicial del mismo. En el caso probado se pudo verificar la posibilidad de establecer sistemas de reducción de labranza.
References
Ahuja, L. R. et al. “Evaluation of spatial distribution of hydraulic conductivity using effective porosity data”. Soil Science. Vol. 148., No. 6. Dec. 1989, pp.404-411.
Anazodo, U. G. N., Onwualju, A. P., Watts, K. C. “Evaluation of alternative tillage systems in the absence of herbicides for maize production in a savannah loamy sand”. Journal of Agricultural Engineering Research. Vol. 49., 1991, pp. 259 - 272.
Ayers, P. D. “Moisture and density effects on Soil shear strength parameters for coarse grained soils”. Transactions of the ASAE. Vol. 30., No. 5. Sep/Oct. 1987, pp. 1282-1287.
Ayers, P. D., Bowen, H. D. “Predicting soil density using cone penetration resistance and moisture profiles”. Transactions of the ASAE. Vol. 30., No. 5., Sep/Oct. 1987, pp. 1331-1336.
Ayers, P. D., Perumpral, J. V. “Moisture and density effect on cone index”. Transactions of the ASAE. Vol. 25., No. 5., 1982, pp. 1169-1172.
Bakhtin, P. U., et al. “Resistance of soils in the USSR to deformation and ploughing”. Ninth International Congress of Soil Science. Vol. 1., 1968, pp. 781-792.
Busscher, W. J., Sojka, R. E. “Enhancement of subsoiling effect on soil strength by conservation tillage”. Transactions of the ASAE. Vol. 30., No. 4. Jul./Aug. 1987, pp. 888-892.
Ekwue, E. I., Stone, R.J. “Organic matter effects on the strength properties of compacted agricultural soils”. Transactions of the ASAE. Vol. 38., No. 2. Mar/Apr. 1995, pp. 357-365.
Gill, W. R., Vandenberg, G. E. “Soil dynamics in tillage and traction”. Agricultural Handbook 316, USDA, 1967.
Greacen, E.L. “Water content and soil strength”. Journal of Soil Science. Vol. 11., No. 2., 1960, pp. 313-333.
Koolen, A. J., Kuipers, H. Agricultural Soil Mechanics. Springer-Verlag, Berlin. 1983.
Oni, K.C. “Traffic compaction and tillage effects on the performance of maize in sandy soil of Nigeria”. Agricultural Mechanization in Asia, Africa and Latin America. Vol. 22., No. 2., 1991, pp. 27-31.
Perumpral, J. V. “Cone penetrometer aplications: A review”. Transactions of the ASAE. Vol. 30., No. 4. Jul/Aug. 1987, pp. 939-944,
Quiroga, R. A. Influencia de las labranzas sobre propiedades de los suelos estrechamente relacionadas con la productividad. Estación Experimental Agrícola del INTA, Facultad de Agronomía de UNL Pampa, Argentina. sf, pp.1-18.
Schafer, R.L., et al. A rationale for modeling soil compaction behavior: an engineering mechanics approach”. Transactions of the ASAE. Vol. 34., No. 4. Jul/Aug. 1991, pp. 1609-1617.
Wells, L. G., Treesuwan, O. “The response of various soil strength to changing water content and bulk density”. Transactions of the ASAE. Vol. 23., No. 5., 1978, pp. 854-861.
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Copyright (c) 1999 Fernando Lozano Osorno, Bernardo Castillo Herrán
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