Produção animal em capim papuã (Brachiaria plantaginea (Link) Hitchc) submetido a níveis de nitrogênio

Martins, Jorge Dubal; Restle, João; Barreto, Ismar Leal

doi:10.1590/s0103-84782000000500025

Cited by 16 publications

(30 citation statements)

References 2 publications

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“…In his work, the highest accumulate rate production was 150 kg DM/ha/day with 459 kg of N/ha, a similar value when compared to this work (147 kg/DM/day), but now using 200 kg of N/ha instead of 459 kg of N/ha. Martins et al (2000), working with B. plantaginea, found a linear increase in the accumulate rate as the nitrogen level increased from 17.74 to 56.58 kg DM/ha/day, reaching a total forage production of 4,657 and 8,753 kg of DM/ha, respectively to the level of 0 and 200 kg of N/ha. Dry matter production increased 20.48 kg DM to each kg of N applied on B. plantaginea pasture.…”

Section: Resultsmentioning

confidence: 96%

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Dynamic of a papuã pasture under two grazing intensities and two nitrogen levels

et al. 2010

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-This work aimed to evaluate the effects of grazing intensities and nitrogen fertilization levels on the dynamics of a Brachiaria plantaginea pasture. The experiment was laid out as a random block design, in a 3 × 2 factorial scheme, composed of three nitrogen levels (0, 200 and 400 kg/ha nitrogen in urea form) and two grazing intensities termed low mass (LM; forage mass of 1500 kg of DM/ha) and high mass (HM; forage mass of 3000 kg of DM/ha) in a continuously stocked swards with two replications. Animals used were half-blood Boer goats averaging five months old and 21 kg body weight (BW) for adjustment of the target forage mass. Real forage mass, average height of the plants and animal stocking rates were of 2,567 and 3,862 kg DM/ha; 23.6 and 31.2 cm and 2,804 and 2,089 kg BW/ha respectively for low and high mass. Accumulation rate was of 100, 147 and 132 kg DM/ha/day and total production 13,659; 19,834 and 17,820 kg DM/ha, respectively to the 0, 200 and 400 kg N/ha. There were no differences on pasture yield among grazing intensities suggesting that higher stocking rates can be used. The level of 200 kg N/ha promotes the best response on papuã grass pastures. Papuã grass shows high yield, good production distribution during the plant cycle and excellent nutritional value.Key Words: Brachiaria plantaginea, forage production, forage nutritive value, forage sward, reseeding, stocking rate Dinâmica de uma pastagem de capim-papuã sob duas intensidades de pastejo e dois níveis de nitrogênio RESUMO -Objetivou-se avaliar a influência da intensidade de pastejo e dos níveis de abubação nitrogenada sobre a dinâmica de uma pastagem de Brachiaria plantaginea. O delineamento experimental adotado foi o de blocos ao acaso, em esquema fatorial 3 × 2, composto de três níveis de adubação nitrogenada (0, 200 e 400 kg/ha de nitrogênio na forma de ureia) e duas intensidades de pastejo (1.500 e 3.000 kg de MS/ha, respectivamente, para as massas baixa e alta em pastejo com lotação contínua e taxa de lotação variável), totalizando seis tratamentos, cada um com duas repetições. Foram utilizados caprinos meio-sangue Boer com 5 meses de idade e peso médio de 21 kg de peso vivo (PV) para ajuste das massas de forragem preconizadas. A massa de forragem real, a altura média das plantas e a carga animal foram de 2.567 e 3.862 kg de MS/ha; 23,6 e 31,2 cm; e 2.804 e 2.089 kg de PV/ha respectivamente para as massas baixa e alta. A taxa de acúmulo foi de 100, 147 e 132 kg de MS/ha/dia e a produção total, de 13.659, 19.834 e 17.820 kg de MS/ha, respectivamente para as doses de 0, 200 e 400 kg de N/ha. Não houve diferença na produtividade da pastagem entre as intensidades de pastejo, logo maior carga animal pode ser utilizada. O nível de 200 kg de N/ha promove a melhor resposta em pastagens de capim-papuã. O capimpapuã tem alta produtividade, boa distribuição da produção ao longo do ciclo e excelente valor nutricional.Palavras-chave: Brachiaria plantaginea, carga animal, estrutura da pastagem, produção de forragem, ressemeadura natural,...

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Section: Resultsmentioning

confidence: 96%

“…High growth rate in a short period of time allows great accumulation of dry matter that needs to be quickly consumed under the risk of decreasing nutritive value and sward quality (Martins et al, 2000). On the other hand, an even production along the pasture cycle reduces the need of animal put and take, a technique disliked by the farmers.…”

Section: Resultsmentioning

confidence: 99%

Dynamic of a papuã pasture under two grazing intensities and two nitrogen levels

et al. 2010

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“…169, Art. 1140, 2011 No entanto no Rio Grande do Sul, os pesquisadores tem se detido à trabalhos envolvendo produção forrageira e animal em pastagens tropicais submetidas a diferentes doses de nitrogênio (LANÇANOVA et al, 1988;MARTINS et al, 2000;HERINGER & MOOJEN, 2002), diferentes tipos de adubos (NEUMANN et al, 2005) e com o uso de suplementação SANTOS et al, 2005;LEITE, 2006;ROMAN et al, 2008).…”

Section: Dinâmica De Espécies Tropicais No Sul Do Brasilunclassified

“…Apresenta elevada produção de massa verde/ha, com boas características qualitativas (MARTINS et al, 2000), o que o torna altamente promissor como forrageira, principalmente em áreas com rotação de lavoura e pecuária.…”

Section: Características Do Capim-papuãunclassified

Cattle breeding in summer grassland in southern Brazil – a review

Osmari¹,

Argenta²,

Paula³

et al. 2015

Pubvet

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“…These studies used an average of 64 kg N/ha with a stocking rate of 2370.3 kg body weight/ha. However, in this species, additional studies on the use of N fertilization are still needed (Martins et al 2000, Adami et al 2010, Sartor et al 2014. Changes in production and nutritive value of forage can happen by the N use and, as well, an increase in the stocking rate, allowing a greater number of beef heifers to reach the required development for mating at a young age, affecting the economic feasibility of the rearing activity.…”

Section: Introductionmentioning

confidence: 99%

Sward structure and nutritive value of Alexandergrass fertilized with nitrogen

Salvador

Pötter

Rocha

et al. 2016

An. Acad. Bras. Ciênc.

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This experiment evaluated forage production, sward structure, stocking rate, weight gain per area and nutritive value of forage as grazed by beef heifers on Alexandergrass (Urochloa plantaginea (Link) Hitch) pasture fertilized with nitrogen (N): 0; 100; 200 or 300 kg of N/ha. The experiment was a completely randomized design following a repeated measurement arrangement. The experimental animals were Angus heifers with initial age and weight of 15 months and 241.5±5 kg, respectively. The grazing method was continuous, with put-and-take stocking. N utilization, regardless of the level, increase by 25% the daily forage accumulation rate and the weight gain per area by 23%. The level of 97.2 kg N/ha leads to a higher leaf blade mass and increases by 20% the leaf:stem ratio. Alterations in sward structure changes the nutritive value of forage as grazed. The utilization of 112.7 kg of N/ha allows the highest stocking rate (2049.8 kg of BW/ha), equivalent to 7.5 heifers per hectare.

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Produção animal em capim papuã (Brachiaria plantaginea (Link) Hitchc) submetido a níveis de nitrogênio

Cited by 16 publications

References 2 publications

Dynamic of a papuã pasture under two grazing intensities and two nitrogen levels

Dynamic of a papuã pasture under two grazing intensities and two nitrogen levels

Cattle breeding in summer grassland in southern Brazil – a review

Sward structure and nutritive value of Alexandergrass fertilized with nitrogen

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