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| Skonieski,Fernando Reimann; Viégas,Julio; Martin,Thomas Newton; Nörnberg,José Laerte; Meinerz,Gilmar Roberto; Tonin,Tiago João; Bernhard,Priscila; Frata,Marcela Tostes. |
| ABSTRACT The objective of this study was to determine the effect of Azospirillum brasilense inoculation and different nitrogen (N) rates applied as topdressing on the productivity of a maize crop and the nutritional value of maize silage. Two experiments were conducted in the 2012/2013 and 2013/2014 harvests. Treatments were distributed in a randomized block design in a factorial arrangement, which consisted of two maize hybrids (AS 1572 and Defender) coupled with nitrogen rates (0, 60, 120, 240, and 480 kg ha-1), inoculated or uninoculated with A. brasilense. Inoculated seeds were treated with the A. brasilense strains Ab-V5 and Ab-V6. Inoculation with A. brasilense showed interaction with the hybrids, agricultural years, and nitrogen rates for the maize... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diazotrophic bacteria; Morphological composition; Nitrogen fertilization; Nutritional value; Silage yield. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000900722 |
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| Santos, Manoel Eduardo Rozalino; Universidade Federal de Viçosa; Fonseca, Dilermando Miranda da; Universidade Federal de Viçosa; Gomes, Virgilio Mesquita; Universidade Federal de Viçosa; Balbino, Eric Márcio; Universidade Federal de Viçosa; Magalhães, Marcela Azevedo; Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista .Júlio de Mesquita Filho (UNESP). |
| O experimento foi realizado para avaliar o número de perfilhos, a massa de forragem e de seus componentes morfológicos em pastos de Brachiaria decumbens cv. Basilisk durante o diferimento da pastagem. Os tratamentos foram quatro períodos de diferimento (18, 46, 74 e 121 dias), a partir de 8/3/2004. O delineamento foi em blocos casualizados com duas repetições. Foram determinados os números de perfilhos vegetativos (PV), reprodutivos (PR) e mortos (PM), bem como as massas de lâmina foliar verde (MLV), colmo verde (MCV) e forragem morta (MFM). Durante o período de diferimento houve redução no número de PV (de 1.491 para 944 perfilhos m-2). Os números de PR e PM não foram influenciados pelo período de diferimento e suas médias foram 211 e 456 perfilhos m-2,... |
| Tipo: Pesquisa de campo |
Palavras-chave: Forragicultura e Pastagens Brachiaria decumbens; Composição morfológica; Densidade populacional de perfilho; Massa de forragem Pastagem e forragicultura Brachiaria decumbens; Forage mass; Morphological composition; Tiller population density. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7922 |
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| Andrade,Carlos Mauricio Soares de; Garcia,Rasmo; Valentim,Judson Ferreira; Pereira,Odilon Gomes. |
| This study was carried out to evaluate the productivity, utilization and sward structure of a mixed massaigrass (Panicum maximum x P. infestum, cv. Massai) and forage peanut (Arachis pintoi Ac 01) pasture, intermittently stocked at three daily herbage allowance levels (9.0, 14.5 and 18.4% of live weight). In each grazing cycle, dry matter (DM) accumulation rates, defoliation intensity (%), grazing depth (%) and grazed horizon (cm) were evaluated. The structure of massaigrass tussocks was characterized in both dry and rainy seasons by measuring its pre-grazing morphological composition and post-grazing height and density (tussocks/m). Pastures submitted to higher herbage allowance (HA) levels showed higher productivity, but were less efficiently utilized.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachis pintoi; Defoliation intensity; Grazing depth; Legume; Morphological composition; Western Amazon. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000200003 |
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| Campana, Ludmila Lacerda; Modesto, Elisa Cristina; Barros, Ana Carolina Carvalho de; Zanella, Pablo Gilliardi; Carvalho, Carlos Augusto Brandão de; Camargo Filho, Sérgio Traballi. |
| The ingestive behavior of crossbred heifers grazing on stargrass pasture was managed at two levels of light interception and two levels of post-grazing residual height. The experiment was conducted at Pesagro (Seropédica, Rio de Janeiro State) between April 2012 and January 2013. The grazing (GT), rumination (RT) and idling (IT) times were evaluated every 10 minutes throughout a 24-hour period. Forage samples were collected for the analysis of chemical composition and for leaf:stem ratio determination. Dry bulb, wet bulb and black globe temperatures were evaluated every hour along with the relative humidity, during grazing to characterize the environment and calculate the Black Globe Humidity Index (BGHI). The mean grazing time (6 hours) was inversely... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BGHI; Cynodon nlemfuensis; Grazing; Idling; Morphological composition; Rumination. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24787 |
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| Cab Jiménez, Francisco Enrique. |
| El presente estudio se realizó de noviembre de 2005 a octubre de 2006, en Isla, Veracruz con clima cálido subhúmedo,. El objetivo fue determinar el rendimiento de forraje, tasa de crecimiento (TC), componentes morfológicos (CM, conformados por hoja, tallo y material muerto), composición botánica (CB), peso por tallo (PT), densidad y dinámica de aparición y muerte de tallos, de tres gramíneas en monocultivo y asociadas con la leguminosa Arachis pintoi. Se establecieron parcelas de 10 x 12 m de B. dictyoneura, B. brizantha cv. Toledo y el híbrido B. ruziziensis x B. brizantha cv. Mulato en monocultivo y asociados con A. pintoi y se pastorearon con ganado bovino cada 30 días. Los tratamientos se distribuyeron en un diseño de bloques completos al azar con... |
| Tipo: Tesis |
Palavras-chave: Brachiaria; Asociación de gramínea-leguminosa; Rendimiento de materia seca; Composición morfológica; Densidad y peso de tallos; Gramineae-legume association; Dry matter yield; Morphological composition; Stalk density and weight. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1650 |
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| Santos, Manoel Eduardo Rozalino; Colegiado de Zootecnia, Universidade Federal do Vale do São Francisco; Fonseca, Dilermando Miranda da; Universidade Federal de Viçosa; Gomes, Virgilio Mesquita; Universidade Federal de Viçosa; Pimentel, Róberson Machado; Universidade Federal de Viçosa; Albino, Ronan Lopes; Universidade Federal de Viçosa; Silva, Simone Pedro da; Universidade Federal de Viçosa. |
| The experiment was conducted to evaluate Brachiaria decumbens cv. Basilisk at different sites of the same pasture featuring varying grazing intensities (under grazed, properly grazed and overgrazed). The pasture was managed under continuous stocking using 200-kg cattle and grass height kept at about 25 cm. The randomized block design was used, with three replications. Sward height (38.0 cm) and extended plant height (85.2 cm) were greater at the under grazed site. The falling index was lower at the properly grazed site (1.28). At the under grazed site, the masses of green leaf blade (3442 kg ha-1 DM), green stem (8370 kg ha-1 DM), green forage (11812 kg ha-1 DM) and total forage (14137 kg ha-1 DM) were higher when compared to the overgrazed and properly... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.04.00-8 Brachiaria decumbens; Morphological composition; Falling index; Continuous stocking; Tiller size. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11801 |
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| Pereira,Lilian Elgalise Techio; Paiva,Adenilson José; Silva,Sila Carneiro da; Caminha,Fábio Olegário; Guarda,Vitor Del'Álamo; Pereira,Priscila de Mesquita. |
| Acceleration of the growth rhythm of plants using nitrogen fertiliser alters the rates of physiological processes like growth and senescence and may cause significant changes in sward structure, interfering with plant and animal responses. The objective of this experiment was to evaluate sward structure of marandu palisadegrass (Brachiaria brizantha) maintained at 30 cm under continuous stocking and subjected to contrasting rhythms of growth from January 2007 to April 2008. These were generated using or not nitrogen fertiliser, and comprised four experimental treatments as follows: control (non-fertilised), 150, 300 and 450 kg ha-1 of N. Acceleration of the growth rhythm of plants was associated with increases in leaf and stem bulk density, and resulted in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbage bulk density; Morphological composition; Grazing management; Nitrogen. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500006 |
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