efectos de tratamientos de labranza sobre la resistencia a la penetración de un andisol effects of tillage treatments on penetration resistance on an andisol
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1992
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Abstract
Se evaluó el efecto sobre la resistencia a la penetración de cuatro implementos de labranza (arado de cinceles, arado de discos, rastrillo californiano y arado rotatorio) en un Andisol (Andic-Eutropept) serie Tibaitatá. Para las medidas, se utilizó un penetrómetro registrador digital. Los resultados mostraron que los tratamientos que involucraron arado rotatorio y arado de discos y rastrillo fueron los que causaron el mayor grado de aflojamiento del suelo. Sin embargo, dichos tratamientos fueron los más susceptibles a la compactación por pase de llantas. No se pudo concluir lo planteado por la literatura de que el fondo de surco de arado es una zona de alto<br />riesgo de compactación del subsuelo. La resistencia a la penetración resultó un buen indicador para evaluar efectos físicos sobre el suelo causarlos por implementos de labranza y él tránsito de maquinaria.
The effects on Cone Penetration Resistance caused by four tillage implements (chisel plow, disk plough, disk harrow and rotatiller) were assesed on an Andisol, using a digital penetrometer. The results showed the treatments using rota-tiller and those using disk plough and disk harrow caused<br />the maximun soilloosening. However those treatments were the most sensitive to compaction due to the traffic of tractor<br />wheels. This work did not present conclusive evidence that bottom of furrow made by disk plough is a place of high risk for subsoil cornpactlon. Cone penetration resistance looks like a good index to assess changes in physical properties of the soil caused by tillage operations and machinery traffic.
The effects on Cone Penetration Resistance caused by four tillage implements (chisel plow, disk plough, disk harrow and rotatiller) were assesed on an Andisol, using a digital penetrometer. The results showed the treatments using rota-tiller and those using disk plough and disk harrow caused<br />the maximun soilloosening. However those treatments were the most sensitive to compaction due to the traffic of tractor<br />wheels. This work did not present conclusive evidence that bottom of furrow made by disk plough is a place of high risk for subsoil cornpactlon. Cone penetration resistance looks like a good index to assess changes in physical properties of the soil caused by tillage operations and machinery traffic.
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| Authors | ;Jiménez Javier;Puentes Hamer;Leiva Fabio R. |
| Journal | Indian journal of pediatrics |
| Year | 1992 |
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| Keywords | Keywords not found |
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