Yield and chemical composition of massai grass fertilized with nitrogen

Abstract Nitrogen fertilization, in addition to increasing biomass production, can also positively influence the chemical composition of a forage plant. The aim of this research was to evaluate the yield and chemical composition of Megathyrsus maximus cv. Massai grass under five nitrogen fertilizati...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lopes,Marcos N., Cândido,Magno J. D., Pompeu,Roberto C. F. F., da Silva,Rodrigo G., de Lacerda,Claudivan Feitosa, Maranhão,Theyson Duarte
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal 2020
Materias:	Crude protein forage biomass Megathyrsus maximus neutral detergent fiber nitrogen fertilization
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000200069
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S2452-57312020000200069
record_format	dspace
spelling	oai:scielo:S2452-573120200002000692020-09-21Yield and chemical composition of massai grass fertilized with nitrogenLopes,Marcos N.Cândido,Magno J. D.Pompeu,Roberto C. F. F.da Silva,Rodrigo G.de Lacerda,Claudivan FeitosaMaranhão,Theyson Duarte Crude protein forage biomass Megathyrsus maximus neutral detergent fiber nitrogen fertilization Abstract Nitrogen fertilization, in addition to increasing biomass production, can also positively influence the chemical composition of a forage plant. The aim of this research was to evaluate the yield and chemical composition of Megathyrsus maximus cv. Massai grass under five nitrogen fertilization levels (0, 150, 300, 450 and 600 mg N dm−3 soil, equivalent to 0, 300, 600, 900 and 1,200 kg ha−1 year−1, respectively) and during growth cycles (establishment and regrowth cycles) in a greenhouse. A completely randomized design with split-plot arrangement was adopted in which the five nitrogen levels were the plots and the cycles were the subplots. The total forage biomass increased with the nitrogen fertilization levels in the three growth cycles (28.4 g pot−1, 32.0 g pot−1 and 29.8 g pot−1 for establishment, regrowth 1 and regrowth 2, respectively, at the level of 600 mg N dm−3), and it was reduced from establishment to regrowth at lower N levels. The dry matter content was not affected by the N levels. However, this content presented higher values at the regrowth cycle in comparison to the establishment cycle. The crude protein (CP) content increased (7.0% CP at the level of 600 mg N dm−3), while the neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemicellulose (HEM) contents all decreased at higher N levels, with the highest CP content being observed at the establishment, and the opposite occurring for NDF, ADF and HEM. Nitrogen fertilization provides positive responses on yield and chemical composition of massai grass.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería ForestalInternational journal of agriculture and natural resources v.47 n.2 20202020-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000200069en10.7764/ijanr.v47i2.2068
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Crude protein forage biomass Megathyrsus maximus neutral detergent fiber nitrogen fertilization
spellingShingle	Crude protein forage biomass Megathyrsus maximus neutral detergent fiber nitrogen fertilization Lopes,Marcos N. Cândido,Magno J. D. Pompeu,Roberto C. F. F. da Silva,Rodrigo G. de Lacerda,Claudivan Feitosa Maranhão,Theyson Duarte Yield and chemical composition of massai grass fertilized with nitrogen
description	Abstract Nitrogen fertilization, in addition to increasing biomass production, can also positively influence the chemical composition of a forage plant. The aim of this research was to evaluate the yield and chemical composition of Megathyrsus maximus cv. Massai grass under five nitrogen fertilization levels (0, 150, 300, 450 and 600 mg N dm−3 soil, equivalent to 0, 300, 600, 900 and 1,200 kg ha−1 year−1, respectively) and during growth cycles (establishment and regrowth cycles) in a greenhouse. A completely randomized design with split-plot arrangement was adopted in which the five nitrogen levels were the plots and the cycles were the subplots. The total forage biomass increased with the nitrogen fertilization levels in the three growth cycles (28.4 g pot−1, 32.0 g pot−1 and 29.8 g pot−1 for establishment, regrowth 1 and regrowth 2, respectively, at the level of 600 mg N dm−3), and it was reduced from establishment to regrowth at lower N levels. The dry matter content was not affected by the N levels. However, this content presented higher values at the regrowth cycle in comparison to the establishment cycle. The crude protein (CP) content increased (7.0% CP at the level of 600 mg N dm−3), while the neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemicellulose (HEM) contents all decreased at higher N levels, with the highest CP content being observed at the establishment, and the opposite occurring for NDF, ADF and HEM. Nitrogen fertilization provides positive responses on yield and chemical composition of massai grass.
author	Lopes,Marcos N. Cândido,Magno J. D. Pompeu,Roberto C. F. F. da Silva,Rodrigo G. de Lacerda,Claudivan Feitosa Maranhão,Theyson Duarte
author_facet	Lopes,Marcos N. Cândido,Magno J. D. Pompeu,Roberto C. F. F. da Silva,Rodrigo G. de Lacerda,Claudivan Feitosa Maranhão,Theyson Duarte
author_sort	Lopes,Marcos N.
title	Yield and chemical composition of massai grass fertilized with nitrogen
title_short	Yield and chemical composition of massai grass fertilized with nitrogen
title_full	Yield and chemical composition of massai grass fertilized with nitrogen
title_fullStr	Yield and chemical composition of massai grass fertilized with nitrogen
title_full_unstemmed	Yield and chemical composition of massai grass fertilized with nitrogen
title_sort	yield and chemical composition of massai grass fertilized with nitrogen
publisher	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312020000200069
work_keys_str_mv	AT lopesmarcosn yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen AT candidomagnojd yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen AT pompeurobertocff yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen AT dasilvarodrigog yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen AT delacerdaclaudivanfeitosa yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen AT maranhaotheysonduarte yieldandchemicalcompositionofmassaigrassfertilizedwithnitrogen
_version_	1714207469942603776

Yield and chemical composition of massai grass fertilized with nitrogen

Ejemplares similares