Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol

In Brazilian agriculture, maize (Tea mays L.) is prominent because of its magnitude of grain production. However, soil compaction changes negatively the soil physical attributes, limiting the crop growth. This study aimed to evaluate physical attributes of a clayey Oxisol (Rhodic Hapludox) under no-...

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Autores principales:	Bergamin,Anderson C, Vitorino,Antonio C.T, Souza,Fabio R, Venturoso,Luciano R, Bergamin,Luara P.P, Campos,Milton C.C
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2015
Materias:	Correlation no-tillage physical attributes tractor traffic Tea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400013
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spelling	oai:scielo:S0718-583920150004000132018-10-01Relationship of soil physical quality parameters and maize yield in a Brazilian OxisolBergamin,Anderson CVitorino,Antonio C.TSouza,Fabio RVenturoso,Luciano RBergamin,Luara P.PCampos,Milton C.C Correlation no-tillage physical attributes tractor traffic Tea mays In Brazilian agriculture, maize (Tea mays L.) is prominent because of its magnitude of grain production. However, soil compaction changes negatively the soil physical attributes, limiting the crop growth. This study aimed to evaluate physical attributes of a clayey Oxisol (Rhodic Hapludox) under no-tillage, and the relationships between these attributes with maize yield in the Midwest region of Brazil. Besides this, indicators of soil physical quality when subjected to levels of compaction were determined. A randomized complete block design was applied with five replicates. Treatments were induced levels of compaction: a reference condition that reflects 8 yr of no-tillage (NT); no-tillage with additional compaction by tractor traffic in one (NT-1), two (NT-2), four (NT-4), and six passes (NT-6). There was significant correlation (P < 0.01) between all physical attributes of the studied soil. Maize yield was positively correlated to macroporosity (r = 0.41), and negatively to penetration resistance (r = -0.42), geometric mean diameter (r = -0.51), and mean weighted diameter (r = -0.53). The index of emergence speed, stem diameter, plant height, grain mass, and grain yield decreased as soil compaction increased. The physical attributes evaluated, especially the resistance to penetration and soil macroporosity, reveal the level of soil compaction and can be used as soil physical quality indicators.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.75 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400013en10.4067/S0718-58392015000400013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Correlation no-tillage physical attributes tractor traffic Tea mays
spellingShingle	Correlation no-tillage physical attributes tractor traffic Tea mays Bergamin,Anderson C Vitorino,Antonio C.T Souza,Fabio R Venturoso,Luciano R Bergamin,Luara P.P Campos,Milton C.C Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
description	In Brazilian agriculture, maize (Tea mays L.) is prominent because of its magnitude of grain production. However, soil compaction changes negatively the soil physical attributes, limiting the crop growth. This study aimed to evaluate physical attributes of a clayey Oxisol (Rhodic Hapludox) under no-tillage, and the relationships between these attributes with maize yield in the Midwest region of Brazil. Besides this, indicators of soil physical quality when subjected to levels of compaction were determined. A randomized complete block design was applied with five replicates. Treatments were induced levels of compaction: a reference condition that reflects 8 yr of no-tillage (NT); no-tillage with additional compaction by tractor traffic in one (NT-1), two (NT-2), four (NT-4), and six passes (NT-6). There was significant correlation (P < 0.01) between all physical attributes of the studied soil. Maize yield was positively correlated to macroporosity (r = 0.41), and negatively to penetration resistance (r = -0.42), geometric mean diameter (r = -0.51), and mean weighted diameter (r = -0.53). The index of emergence speed, stem diameter, plant height, grain mass, and grain yield decreased as soil compaction increased. The physical attributes evaluated, especially the resistance to penetration and soil macroporosity, reveal the level of soil compaction and can be used as soil physical quality indicators.
author	Bergamin,Anderson C Vitorino,Antonio C.T Souza,Fabio R Venturoso,Luciano R Bergamin,Luara P.P Campos,Milton C.C
author_facet	Bergamin,Anderson C Vitorino,Antonio C.T Souza,Fabio R Venturoso,Luciano R Bergamin,Luara P.P Campos,Milton C.C
author_sort	Bergamin,Anderson C
title	Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
title_short	Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
title_full	Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
title_fullStr	Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
title_full_unstemmed	Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol
title_sort	relationship of soil physical quality parameters and maize yield in a brazilian oxisol
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400013
work_keys_str_mv	AT bergaminandersonc relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol AT vitorinoantonioct relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol AT souzafabior relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol AT venturosolucianor relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol AT bergaminluarapp relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol AT camposmiltoncc relationshipofsoilphysicalqualityparametersandmaizeyieldinabrazilianoxisol
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Relationship of soil physical quality parameters and maize yield in a Brazilian Oxisol

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