Aspectos qualitativos e produção de biomassa em pastos de aveia e azevém cultivados puros ou consorciados e submetidos a pastejo leniente

Guzatti, Gabriela Cristina; Duchini, Paulo Gonçalves; Sbrissia, André Fischer; Filho, Henrique Mendonça Nunes Ribeiro

doi:10.1590/1678-4162-8103

Cited by 9 publications

(8 citation statements)

References 18 publications

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“…The present study and Guzatti et al (2015) demonstrated that there were no significant biomass production losses due to intraspecific competition in the consortia relative to the monocultures. Nevertheless, the botanical compositions of the various treatments were not determined.…”

Section: Acta Scientiarum Animal Sciencessupporting

confidence: 57%

“…Nevertheless, the botanical compositions of the various treatments were not determined. Guzatti et al (2015) studied a consortium consisting of only two species and indicated that the leaf area index (LAI) remained constant through changes in tiller densities. Duchini, Guzatti, Ribeiro Filho, and Sbrissia (2014) tested grazed a ryegrass-black oat mixtures and monocultures and found that, over time, consortia maintains a constant LAI in response to changes in soil fertility requirements and climate.…”

Section: Acta Scientiarum Animal Sciencesmentioning

confidence: 99%

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<b>Production and chemical composition of grasses and legumes cultivated in pure form, mixed or in consortium

Tambara

Sippert

Jauris

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. The objective of this study was to assess the edible biomass and chemical composition of forages grown on pure form, as a grass mix, and in grass-legume consortia. The following species were tested: white oats (Avena sativa), black oats (Avena strigosa), ryegrass (Lolium multiflorum), forage peanut (Arachis pintoi), white clover (Trifolium repens), and red clover (Trifolium pratense). The experiment consisted of sixteen treatments arranged in a completely randomized design. The parameters measured were total dry matter (PMST), neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude protein (CP). No significant differences in PMST were found among the consortia (p > 0.05). Only the pure cultivated white clover (p > 0.05) was comparable to the consortia in terms of biomass production. The three legumes had the lowest average NDF values (p > 0.05), based on their contributions to the total NDF content of the consortia along the cuts. The ADF content increased for all treatments during the cuts. The results indicate that in pasture, legumes increase protein content, and forage consortia increase both the pasture production and the grazing period. Their chemical composition is adequate for boosting livestock production in pastures.Keywords: Arachis pintoi, Avena sp., fiber, Lolium multiflorum, protein, Trifolium sp.Produção e composição bromatológica de gramíneas e leguminosas cultivadas de forma estreme, misturadas ou em consórcio RESUMO. Objetivou-se avaliar a produção de biomassa e a composição bromatológica ao longo do ciclo produtivo de forrageiras cultivadas de forma estreme, misturadas ou consorciadas. Foram utilizadas as seguintes espécies: aveia branca (Avena sativa), aveia preta (Avena strigosa), azevém (Lolium multiflorum), amendoim forrageiro (Arachis pintoi), trevo branco (Trifolium repens) e trevo vermelho (Trifolium pratense). As forrageiras foram cultivadas em 16 tratamentos em delineamento inteiramente casualizado, sendo analisados a produção de matéria seca total (PMST) e os teores de fibra em detergente neutro (FDN), fibra em detergente ácido (FDA) e proteína bruta (PB). Quanto à PMST, não foram constatadas diferenças (p > 0,05) entre os consórcios, sendo apenas o cultivo estreme de trevo branco comparável (p < 0,05) aos consórcios em biomassa produzida. Em relação ao FDN, as três leguminosas isoladas apresentaram os menores valores (p > 0,05) na média geral, ficando evidente a sua contribuição no teor de FDN dos consórcios ao longo dos cortes. O teor de FDA aumentou no decorrer dos cortes para todos os tratamentos. Os resultados indicam que a inclusão de leguminosas aumenta os teores proteicos, e os consórcios de forrageiras aumentam a produção de pastagem e o período de pastejo, com composição bromatológica adequada para potencializar a produção animal a pasto.

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Section: Acta Scientiarum Animal Sciencessupporting

confidence: 57%

Section: Acta Scientiarum Animal Sciencesmentioning

confidence: 99%

<b>Production and chemical composition of grasses and legumes cultivated in pure form, mixed or in consortium

Tambara

Sippert

Jauris

et al. 2017

Acta Sci. Anim. Sci.

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“…These results corroborate with Martin et al (2012), which found a wide variation in biomass yield among 36 maize genotypes for silage. Sorghum in the consortium can positively influence biomass yield (Table 1), in some cases, the consortium of plants belonging to different functional groups and/or distinct growth habits promotes biomass production values higher than the monoculture (Guzatti et al, 2015;Duchini et al, 2018a;Duchini et al, 2018b;Grace et al, 2018). This advantage in the association of conservative resource plants (e.g., sorghum) with demanding plants in fertility (e.g., maize) was presented by Cruz et al, (2002); the authors expose that the strategic association of these plant groups promotes a better use of the agricultural inputs used (e.g., N-P-K), besides impacting a greater conversion of atmospheric carbon into forage biomass.…”

Section: Forage Productionmentioning

confidence: 99%

“…It exhibits rapid establishment, resistance to water deficit, and, compared to other cultures, presents low requirements of soil fertility (Bogdan, 1977), being an excellent alternative for tropical climate regions, where there are low levels of natural fertility (Santos et al, 2018). Despite being a culture of broad aptitude, the potential of sorghum is little explored because it is considered a minor crop; although there are cultivars for forage, soil cover, grain yield and silage (Ribeiro et al, 2015, Ribeiro et al, 2017.…”

Section: Introductionmentioning

confidence: 99%

Does intercropping maize with forage sorghum effect biomass yield, silage bromatological quality and economic viability?

Rezende

Golin

Abreu

et al. 2020

RSD

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Maize and forage sorghum crops have a relevant economic importance in Midwest Brazil and there is a need for more information for their intercropping as a strategy for the farmers to reduce inputs. The objective of this work is evaluate if forage sorghum and maize intercropping effects agronomic traits, the bromatological characteristics of silage from the consortium at different times of silo openings, and the economic viability of all crop systems. This experiment was carried on in the field with seven treatments, consisting of monoculture and intercropping of corn and sorghum hybrids. Monoculture of sorghum Agri 001 and maize Agri 320, as well as in maize Agri 320, Agri 340 and Agri 104 intercropped with sorghum Agri 001 had the highest biomass yield. Intercropped maize did not have lodging, reduction in height, nor decrease in the first ear height in relation to the intercropped plants. Maize hybrids intercropped with sorghum led to a better fermentation pattern of silages, reducing ammonia concentrations. However, due the higher contents of NDF and the lower TDN contents of sorghum, nutritional values of intercropped silages were generally smaller than when they were composed only with maize. It was observed that the monoculture of sorghum Agri 001 for silage showed a higher profit compared to the other treatments.

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“…is based on lengthening the period of pasture usage. The early growth and shorter vegetative period of black oat crops can be offset by the later production peak of ryegrass, which is known for its natural reseeding (Duchini et al, 2016;Guzatti et al, 2015) and resistance to disease. Optimization of pasture production, however, depends on both efficient grazing management and supplementation strategies.…”

Section: Introductionmentioning

confidence: 99%

Herbage production, botanical and plant-part composition of mixed black oat (Avena strigosa Scherb.) annual ryegrass (Lolium multiflorum Lam.) pastures under different management strategies

et al. 2019

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Mixing annual ryegrass and black oat can improve forage production in subtropical and temperate areas with integrated crop-livestock systems. Thus, we evaluated the forage production dynamics of mixed annual ryegrass-black oat pastures under different management strategies based on canopy height and supplement level. Pastures were continuously stocked with Boer goats at two grazing heights (12 or 21 cm); animals received or did not receive energy supplements (0 and 15 g kg-1 of body weight). These treatments were applied using a factorial scheme (2 × 2) and randomized block design with three replications. We evaluated the herbage accumulation rate (kg of DM h-1 day-1) using the exclusion cage technique, herbage mass (HM, kg of DM ha-1) using the double sampling technique, and botanical and plant-part composition (%) of destructive samplings. Supplementation had no effect on the parameters measured (P ≤ 0.05). Annual ryegrass become the predominant species during the experimental period and mainly at the lowest canopy height. Total herbage production during the 131 days of pasture utilization was 10,280 kg of DM ha-1. The herbage accumulation rate was similar between the two canopy heights; however, it varied throughout experimental period. Leaf lamina mass was lower in treatments 12 cm up to 102 after sowing; after that, they were equivalent. At the end of the study, herbage mass was 2720 kg DM ha-1 with the 21-cm treatment and 2170 kg DM ha-1 with the 12-cm treatment. It is recommended to maintain mixed annual ryegrass-black oat pastures at 12 cm in height. Reasons are discussed throughout the text.

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Aspectos qualitativos e produção de biomassa em pastos de aveia e azevém cultivados puros ou consorciados e submetidos a pastejo leniente

Cited by 9 publications

References 18 publications

<b>Production and chemical composition of grasses and legumes cultivated in pure form, mixed or in consortium

<b>Production and chemical composition of grasses and legumes cultivated in pure form, mixed or in consortium

Does intercropping maize with forage sorghum effect biomass yield, silage bromatological quality and economic viability?

Herbage production, botanical and plant-part composition of mixed black oat (Avena strigosa Scherb.) annual ryegrass (Lolium multiflorum Lam.) pastures under different management strategies

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