Sward structural characteristics and herbage accumulation of Piatã palisade grass (Brachiaria brizantha) in a crop–livestock–forest integration area

Crestani, Steben; Mascheroni, Jorge Daniel Caballero; Geremia, Eliana Vera; Carnevalli, Roberta Aparecida; Mourão, Gérson Barreto; Silva, Sila Carneiro da

doi:10.1071/cp16341

Cited by 11 publications

(10 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The lesser HM in the LF system was likewise associated with the least overall HBD. Because HBD is affected by the leaf:stem ratio and tiller density (Pedreira, Pedreira, & Silva, ; Sbrissia & da Silva, ), both of which are affected by light environment, the attenuation of photosynthetically active radiation (PAR) reaching the grass canopy in silvopastoral systems may have reduced HBD (do Nascimento et al, ; Crestani et al, ; Geremia et al, ).…”

Section: Discussionmentioning

confidence: 99%

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

Carvalho

Domiciano

Mombach

et al. 2019

Grass and Forage Science

View full text Add to dashboard Cite

To meet the global demand for animal protein, sustainable intensification of existing livestock systems may be possible, especially through integration of livestock with crops or forestry. Thus, our objective was to compare forage production and animal performance in grass monoculture and integrated systems in the Brazilian Amazon biome. The four systems were (a) livestock (L) with Marandu palisadegrass {Brachiaria brizantha (Hochst. ex A. Rich.) R. D. Webster} as monoculture, (b) palisadegrass pastures integrated with eucalyptus trees (Eucalyptus urograndis; hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S. T. Blake) arranged in three‐row groves with groves spaced 30 m apart (livestock–forestry; LF), (c) palisadegrass after two years of crops (crop–livestock; CL) and (d) palisadegrass after two years of crops with single rows of eucalyptus trees spaced 37 m apart (crop–livestock–forestry; CLF). From July 2016 to July 2017, all experimental units were continuously stocked using a variable stocking rate. Greater herbage accumulation (HA) occurred in CL and CLF in comparison with L and LF (21,310, 24,050, 19,500 and 18,890 kg DM/ha respectively). The gain per hectare of L, LF and CL (average of 932 kg ha–1) was less than CLF (1,190 kg ha–1). Average daily gain was similar among systems (0.69 kg/day). We conclude that integrated systems can support similar (LF or CL) or greater (CLF) levels of animal production than palisadegrass monocultures while increasing diversity of outputs, thereby providing a greater range of viable systems for livestock production in the Brazilian Amazon biome.

show abstract

Section: Discussionmentioning

confidence: 99%

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

Carvalho

Domiciano

Mombach

et al. 2019

Grass and Forage Science

View full text Add to dashboard Cite

show abstract

“…A plasticidade fenotípica baseia-se na estratégia que as plantas possuem em alterar sua morfologia, características bioquímicas e fisiológicas decorrentes das variações ambientais (VALLADARES et al, 2016). Algumas das respostas ao sombreamento decorrem do alongamento do entrenó, afinamento do colmo, folhas mais delgadas, prejudicando também a biomassa do sistema radicular, comparativamente a plantas que se desenvolvem no PS (PACIULLO et al, 2016;CRESTANI et al, 2017).…”

Section: Revisão Bibliográfica 21 Ambiente Luminosounclassified

“…No entanto, durante a estação chuvosa houve redução de 31% na produção de forragem sob o mesmo sombreamento (Tabela 2). Segundo Crestani et al (2017), a produção de forragem em áreas sombreadas quando há baixa densidade de árvores (338 árvores/ha) é maior do que em áreas com alta densidade de árvores (714 árvores/ha) comparadas com PS. Kimura et al (2018), observaram redução de 70% na produção de forragem do Panicum virgatum L. cultivada em sistema silvipastoril, com 49% de redução da luz.…”

Section: Implicações Do Sombreamento Em Sistemas Silvipastorisunclassified

“…Dentre os principais mecanismos, estão: aumento da área foliar específica (AFE) a fim de aumentar a exposição das folhas à luz solar (SANTOS et al, 2016;GOMES et al, 2019;GOMES et al, 2020a) e aumento do índice de área foliar (IAF) (GOMES et al, 2020a;GOMES et al, 2020b); redução na densidade populacional de perfilhos (DPP) priorizando a sobrevivência das plantas (PACIULLO et al, 2016;GOMES et al, 2020b); mudanças na arquitetura do dossel, como redução no ângulo da folhagem (CRESTANI et al, 2017) e alongamento de colmo de modo a interceptar mais luz LOPES et al, 2017a). Ressalta-se que esses mecanismos são inerentes à cada espécie e dependem do grau de redução na RFA.…”

Section: Introductionunclassified

See 1 more Smart Citation

Efeito Do Ambiente Luminoso Em Forrageiras De Clima Tropical Em Sistemas Silvipastoris

Santos

Gomes

Ximenes³

et al. 2020

NAT

View full text Add to dashboard Cite

Alterações no ambiente luminoso provocam mudanças adaptativas nas plantas, na tentativa de manter o seu crescimento e desenvolvimento. Objetivou-se com esta revisão investigar e descrever o efeito do ambiente luminoso no crescimento e desenvolvimento de forrageiras de clima tropical em sistemas silvipastoris. A compreensão da influência do ambiente luminoso e, das mudanças biológicas que as diferentes intensidades do sombreamento podem causar nas forrageiras de clima tropical, possibilita fundamentar as alterações metabólicas das respostas das plantas na tentativa de se manterem persistentes em sistemas sombreados. A partir disso, entender quais são os níveis aceitáveis de radiação para que os sistemas de produção sombreados não entrem em colapso é fundamental para que tomadas de decisões sejam realizadas no tempo hábil do ciclo biológico das espécies vegetais. Em sistemas silvipastoris, a redução da luz incidente em forrageiras de clima tropical provoca alterações como aumento da área foliar específica, redução na densidade populacional de perfilhos e na relação raízes: parte aérea da planta. Cada espécie ou cultivar apresenta características adaptativas específicas ao sombreamento com a finalidade de aproveitar os recursos disponíveis em tecidos fotossintéticos e de suporte. No entanto, ainda assim o sombreamento intenso (>40%) afeta negativamente a produção forrageira de acordo com a variabilidade climática. Palavras-chave: adaptação morfofisiológica; fotossíntese; luz; plantas C4. EFFECT OF THE LIGHT ENVIRONMENT IN TROPICAL CLIMATE FORAGES IN SILVOPASTORAL SYSTEMS ABSTRACT: Changes in the light environment cause adaptive changes in plants, to maintain their growth and development. The aim of this review is to investigate and describe the light environment effect on the growth and development of tropical forages in silvopastoral systems. The understanding of the influence of the light environment and the biological changes that different shading intensities can cause in tropical forages, makes it possible to substantiate the metabolic alterations of plant responses to remain persistent in shaded systems. From this, understanding what are the acceptable levels of radiation so that the systems do not collapse is essential for decision-making to be carried out in a timely manner in the plant's biological cycle. In silvopastoral systems, a light incidence reduction on tropical forages causes changes such as an increase in the leaf area index, reduction in the tiller population density, and shoot: root ratio. Each species or cultivar has adaptive characteristics specific to shading to take advantage of the resources available in photosynthetic and support tissue. However, even so, the intense shading (> 40%) negatively affects forage production according to climatic variability. Keywords: morphophysiological adaptation; photosynthesis; light; C4 plants.

show abstract

“…The effects of this component can be contrasting. For instance, on the one hand, shading may offer a higher comfort to animals (Karvatte et al, 2016), and on the other hand, it may hinder pasture development (Crestani et al, 2017). However, few studies seek to understand the influence of trees in ICLF on soil chemical attributes in the area adjacent to the row of trees, i.e.…”

Section: Introductionmentioning

confidence: 99%

Soil Chemical Attributes in Response to Tree Distance and Sun-Exposed Faces After the Implantation of an Integrated Crop-Livestock-Forestry System

et al. 2018

View full text Add to dashboard Cite

The use of trees in integrated crop-livestock-forestry systems (ICLF) allows diversifying production, increasing profitability per area, and providing a higher animal comfort. However, the influence of tree component on soil chemical attributes in this system is still little studied. This study aimed to assess the effect of trees and sun-exposed faces to solar radiation on soil nutrient availability at different distances of tree rows in an integrated crop-livestock-forestry system. This study was carried out in the northern Mato Grosso State, Brazil, in the Cerrado - Amazon Forest transition region in an ICLF with the tree component formed by three eucalyptus rows. The assessment carried out in the second year of ICLF implantation considered the effect of tree distances (3, 6, 10, and 15 m) on two sun-exposed faces to solar radiation (north and south) on the main soil chemical attributes. Soil sampling was performed at depths of 0-0.05, 0.05-0.10, 0.10-0.20, and 0.20-0.30 m. The results indicated a homogeneity of the average nutrient contents obtained in the north and south-exposed faces, as well as in the comparison of the same distances in both assessed sun-exposed faces. Effects of trees on soil chemical attributes were verified only when an isolated analysis was carried out in the north-exposed face for K and Al contents. For these attributes, the increased distance in the row was associated with a reduction in their contents in the more superficial and deeper layers, respectively. Trees do not significantly affect soil nutrient availability in the first years of ICLF implantation in systems with homogeneity of solar radiation incidence in the sun-exposed faces although there may be discrete nutrient reductions with the distance of trees.

show abstract

Sward structural characteristics and herbage accumulation of Piatã palisade grass (Brachiaria brizantha) in a crop–livestock–forest integration area

Cited by 11 publications

References 42 publications

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

Efeito Do Ambiente Luminoso Em Forrageiras De Clima Tropical Em Sistemas Silvipastoris

Soil Chemical Attributes in Response to Tree Distance and Sun-Exposed Faces After the Implantation of an Integrated Crop-Livestock-Forestry System

Contact Info

Product

Resources

About