Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation

Competition between weeds and crops results in a lower availability of some resources to crop species, which causes deficiencies, such as water and nutritional deficiencies and low light quality or quantity. The aims of this study were to evaluate the effects of Urochloa brizantha (Hochst. ex A. Ric...

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Autores principales:	Rodrigues,Orismario L, Galvão,João Carlos C, Ferreira,Evander A, Silva,Daniel V, Santos,Marcia V, Ferreira,Lino R, Pereira,Rosana C, Felipe,Rafael S
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Atrazine competition fertilizing intercropping nicosulfuron Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300002
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spelling	oai:scielo:S0718-583920140003000022018-10-01Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivationRodrigues,Orismario LGalvão,João Carlos CFerreira,Evander ASilva,Daniel VSantos,Marcia VFerreira,Lino RPereira,Rosana CFelipe,Rafael S Atrazine competition fertilizing intercropping nicosulfuron Zea mays Competition between weeds and crops results in a lower availability of some resources to crop species, which causes deficiencies, such as water and nutritional deficiencies and low light quality or quantity. The aims of this study were to evaluate the effects of Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster, cv. Xaraes (brachiaria) emergence times comparing with corn (Zea mays L.), in addition to the fertilization and application of different nicosulfuron and atrazine herbicides levels, on the physiological characteristics of intercropped species. The physiological characteristics Brachiaria plants that were treated with herbicides were negatively affected. The emergence time of Brachiaria plants in comparison with corn altered the physiological characteristics of both. The Brachiaria plants that emerged before corn presented higher photosynthetic and transpiration rates and reduced the intensity of these characteristics in corn. Thus, the Brachiaria plants that emerged before the corn crop presented a higher physiological efficiency, and they were more competitive than the weeds that emerged during other seasons.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.3 20142014-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300002en10.4067/S0718-58392014000300002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Atrazine competition fertilizing intercropping nicosulfuron Zea mays
spellingShingle	Atrazine competition fertilizing intercropping nicosulfuron Zea mays Rodrigues,Orismario L Galvão,João Carlos C Ferreira,Evander A Silva,Daniel V Santos,Marcia V Ferreira,Lino R Pereira,Rosana C Felipe,Rafael S Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
description	Competition between weeds and crops results in a lower availability of some resources to crop species, which causes deficiencies, such as water and nutritional deficiencies and low light quality or quantity. The aims of this study were to evaluate the effects of Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster, cv. Xaraes (brachiaria) emergence times comparing with corn (Zea mays L.), in addition to the fertilization and application of different nicosulfuron and atrazine herbicides levels, on the physiological characteristics of intercropped species. The physiological characteristics Brachiaria plants that were treated with herbicides were negatively affected. The emergence time of Brachiaria plants in comparison with corn altered the physiological characteristics of both. The Brachiaria plants that emerged before corn presented higher photosynthetic and transpiration rates and reduced the intensity of these characteristics in corn. Thus, the Brachiaria plants that emerged before the corn crop presented a higher physiological efficiency, and they were more competitive than the weeds that emerged during other seasons.
author	Rodrigues,Orismario L Galvão,João Carlos C Ferreira,Evander A Silva,Daniel V Santos,Marcia V Ferreira,Lino R Pereira,Rosana C Felipe,Rafael S
author_facet	Rodrigues,Orismario L Galvão,João Carlos C Ferreira,Evander A Silva,Daniel V Santos,Marcia V Ferreira,Lino R Pereira,Rosana C Felipe,Rafael S
author_sort	Rodrigues,Orismario L
title	Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
title_short	Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
title_full	Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
title_fullStr	Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
title_full_unstemmed	Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation
title_sort	physiologic characteristics of corn and urochloa brizantha (hochst. ex a. rich.) r.d. webster in intercropping cultivation
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300002
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Physiologic characteristics of corn and Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster in intercropping cultivation

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