Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation

The use of urease inhibitors and irrigation are management options to increasing the efficiency of top-dressed urea by reducing NH3 volatilization. The purpose of this study was to evaluate the productive performance and N recovery of 'BRS 254' wheat plants without irrigation after applyin...

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Autores principales:	Espindula,Marcelo C, Campanharo,Marcela, Dias,Jairo R. M, Rocha,Valterley S, Souza,Moacil A. de, Menoncin,Giovana
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2016
Materias:	Triticum aestivum nitrogen fertilization nitrogen recovery volatilization of NH3
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200014
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spelling	oai:scielo:S0718-162020160002000142016-10-07Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigationEspindula,Marcelo CCampanharo,MarcelaDias,Jairo R. MRocha,Valterley SSouza,Moacil A. deMenoncin,Giovana Triticum aestivum nitrogen fertilization nitrogen recovery volatilization of NH3 The use of urease inhibitors and irrigation are management options to increasing the efficiency of top-dressed urea by reducing NH3 volatilization. The purpose of this study was to evaluate the productive performance and N recovery of 'BRS 254' wheat plants without irrigation after applying urea or urea+NBPT [N-(n-butyl)thiophosphoric triamide] as the top dressing. The experiment was carried out in Viçosa, MG, Brazil, between May and September of 2008 using a complete randomized block design with a 2×6+1 factorial arrangement of the following treatments: 1) urea or urea+NBPT, 2) six periods without irrigation (0, 48, 96, 144, 192 or 240 h after applying the top-dressing fertilizer), and 3) a control without N; there were four replications. The data were subjected to an analysis of variance (P≤0.05). The mean values of the treatments with urea or urea+NBPT were compared by Tukey's test (P≤0.05), and the effects of the periods without irrigation were analyzed by a regression (P≤0.05). The results of the study show that NBPT did not lead to agronomic advantages for the wheat crop under the study conditions, and the absence of irrigation after urea application as the top dressing led to less N utilization by the wheat plants.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.43 n.2 20162016-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200014en10.4067/S0718-16202016000200014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Triticum aestivum nitrogen fertilization nitrogen recovery volatilization of NH3
spellingShingle	Triticum aestivum nitrogen fertilization nitrogen recovery volatilization of NH3 Espindula,Marcelo C Campanharo,Marcela Dias,Jairo R. M Rocha,Valterley S Souza,Moacil A. de Menoncin,Giovana Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
description	The use of urease inhibitors and irrigation are management options to increasing the efficiency of top-dressed urea by reducing NH3 volatilization. The purpose of this study was to evaluate the productive performance and N recovery of 'BRS 254' wheat plants without irrigation after applying urea or urea+NBPT [N-(n-butyl)thiophosphoric triamide] as the top dressing. The experiment was carried out in Viçosa, MG, Brazil, between May and September of 2008 using a complete randomized block design with a 2×6+1 factorial arrangement of the following treatments: 1) urea or urea+NBPT, 2) six periods without irrigation (0, 48, 96, 144, 192 or 240 h after applying the top-dressing fertilizer), and 3) a control without N; there were four replications. The data were subjected to an analysis of variance (P≤0.05). The mean values of the treatments with urea or urea+NBPT were compared by Tukey's test (P≤0.05), and the effects of the periods without irrigation were analyzed by a regression (P≤0.05). The results of the study show that NBPT did not lead to agronomic advantages for the wheat crop under the study conditions, and the absence of irrigation after urea application as the top dressing led to less N utilization by the wheat plants.
author	Espindula,Marcelo C Campanharo,Marcela Dias,Jairo R. M Rocha,Valterley S Souza,Moacil A. de Menoncin,Giovana
author_facet	Espindula,Marcelo C Campanharo,Marcela Dias,Jairo R. M Rocha,Valterley S Souza,Moacil A. de Menoncin,Giovana
author_sort	Espindula,Marcelo C
title	Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
title_short	Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
title_full	Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
title_fullStr	Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
title_full_unstemmed	Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
title_sort	yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200014
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Yield and nitrogen recovery of wheat plants subjected to urea application with or without a urease inhibitor in the absence of irrigation

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