Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content

Initial soil conditions, operational aspects, and tool shape affect the efficiency of soil decompaction. The objective of this study was to evaluate the performance of a winged scarifier as a function of soil compaction and edaphic water content. The experiment was carried out in a typical Hapludoll...

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Autores principales:	Cholaky,Carmen, Cisneros,José M, Balbuena,Roberto
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2010
Materias:	agricultural engineering winged scarifier bulk density water content compaction
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100016
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spelling	oai:scielo:S0718-583920100001000162018-10-01Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water ContentCholaky,CarmenCisneros,José MBalbuena,Roberto agricultural engineering winged scarifier bulk density water content compaction Initial soil conditions, operational aspects, and tool shape affect the efficiency of soil decompaction. The objective of this study was to evaluate the performance of a winged scarifier as a function of soil compaction and edaphic water content. The experiment was carried out in a typical Hapludoll. Treatments considered two soil compaction levels: high (HC) and low compaction (LC); and three soil water contents: wet (WS), humid (HS), and dry (DS) with 9, 14, and 19% gravimetric water content, respectively. A split-plot randomized block design was applied. Tractive effort, disturbed area, tillage depth, specific resistance, and power were evaluated. Results showed that tractive effort was 17% greater in HC than LC, and in both cases HS was greater than WS and DS. The specific resistance in HC was equal to 8, 9, and 11 N cm-2 in WS, HS, and DS, respectively, and 7, 8, and 7 N cm-2 in BC in similar soil water contents, respectively. Tillage depth was low and irregular only in HC-DS. Specific resistance was not an adequate indicator of overall work efficiency because it does not consider the final soil physical profile. Overall work efficiency in HC was greater under HS conditions, while in LC it was greater under HS and DS conditions.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.70 n.1 20102010-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100016en10.4067/S0718-58392010000100016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	agricultural engineering winged scarifier bulk density water content compaction
spellingShingle	agricultural engineering winged scarifier bulk density water content compaction Cholaky,Carmen Cisneros,José M Balbuena,Roberto Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
description	Initial soil conditions, operational aspects, and tool shape affect the efficiency of soil decompaction. The objective of this study was to evaluate the performance of a winged scarifier as a function of soil compaction and edaphic water content. The experiment was carried out in a typical Hapludoll. Treatments considered two soil compaction levels: high (HC) and low compaction (LC); and three soil water contents: wet (WS), humid (HS), and dry (DS) with 9, 14, and 19% gravimetric water content, respectively. A split-plot randomized block design was applied. Tractive effort, disturbed area, tillage depth, specific resistance, and power were evaluated. Results showed that tractive effort was 17% greater in HC than LC, and in both cases HS was greater than WS and DS. The specific resistance in HC was equal to 8, 9, and 11 N cm-2 in WS, HS, and DS, respectively, and 7, 8, and 7 N cm-2 in BC in similar soil water contents, respectively. Tillage depth was low and irregular only in HC-DS. Specific resistance was not an adequate indicator of overall work efficiency because it does not consider the final soil physical profile. Overall work efficiency in HC was greater under HS conditions, while in LC it was greater under HS and DS conditions.
author	Cholaky,Carmen Cisneros,José M Balbuena,Roberto
author_facet	Cholaky,Carmen Cisneros,José M Balbuena,Roberto
author_sort	Cholaky,Carmen
title	Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
title_short	Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
title_full	Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
title_fullStr	Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
title_full_unstemmed	Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content
title_sort	field performance of a winged scarifier as a function of soil compaction and water content
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100016
work_keys_str_mv	AT cholakycarmen fieldperformanceofawingedscarifierasafunctionofsoilcompactionandwatercontent AT cisnerosjosem fieldperformanceofawingedscarifierasafunctionofsoilcompactionandwatercontent AT balbuenaroberto fieldperformanceofawingedscarifierasafunctionofsoilcompactionandwatercontent
_version_	1714205280444612608

Field Performance of a Winged Scarifier as a Function of Soil Compaction and Water Content

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