Role of woody perennials in animal agroforestry

Torres, Filemón

doi:10.1007/bf00596354

Cited by 44 publications

(24 citation statements)

References 47 publications

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“…O sucesso desses sistemas depende de alguns fatores, como a identificação de espécies tolerantes ao sombreamento e a adoção de práticas de manejo que assegurem a sua produtividade e persistência no subbosque (TORRES, 1982;WONG e STÜR, 1993).…”

Section: Introductionunclassified

Produção forrageira de gramíneas cultivadas sob luminosidade reduzida

et al. 1999

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RESUMO -O objetivo deste trabalho foi avaliar a influência de três níveis de sombreamento artificial (0,30 e 60%) sobre a produção de matéria seca, a concentração de nitrogênio e as características morfológicas de seis espécies de gramíneas forrageiras tropicais (Andropogon gayanus, cv. Planaltina, Brachiaria brizantha, cv. Marandu, B. decumbens, Melinis minutiflora, Panicum maximum, cv. Vencedor, e Setaria anceps, cv. Kazungula). Foi usado delineamento em blocos ao acaso, com parcelas subdivididas e quatro repetições; nas parcelas foram distribuídos os níveis de sombreamento e nas subparcelas, as espécies forrageiras. Os resultados demonstram que o sombreamento influenciou a produção de matéria seca, a concentração de N e as características morfológicas das espécies avaliadas. A produção forrageira foi influenciada diferencialmente pelo sombreamento. A produção de matéria seca do P. maximum, cv. Vencedor foi 19,72% maior à sombra moderada que a pleno sol. A produção de S. anceps, cv. Kazungula, entretanto, não foi influenciada pelo sombreamento. As demais espécies tiveram decréscimo da produção de matéria seca com a redução da luminosidade. Em todas as espécies, houve aumento da concentração de N e redução do teor de matéria seca da forragem, que se tornou mais suculenta à sombra. As características morfológicas não apresentaram comportamento padrão, variando conforme a espécie avaliada.Palavras-chave: alterações morfológicas, nitrogênio, sombreamento artificial Grass Forages Production Cultivated under Light ReductionABSTRACT -The objective of this work was to evaluate the influence of three levels of artificial shade (0, 30 and 60%) on dry matter production, nitrogen content and morphological characteristics of six forage grasses (Andropogon gayanus cv. Planaltina, Brachiaria brizantha cv. Marandu, B. decumbens, Melinis minutiflora, Panicum maximum cv. Vencedor and Setaria anceps cv. Kazungula). A randomized block design, with split plots and four replicates, was used; the shading levels were allotted to the plots and the species to the split plots. The results showed that shading affected the production of dry matter, the nitrogen content and the morphological characteristics of the evaluated species. The production of forage was differentially affected by the shade. The dry matter production of P. maximum cv. Vencedor was 19.72% higher, at moderate shade than in broad daylight. The forage production of S. anceps cv. Kazungula, however, was not affected by the shade. The dry matter production of other species decreased with the reduction of the light. In all species there was an increase of N content and reduction of the content of dry matter of the forage, which became juicier in the shade. The morphological characteristics did not show a standard behavior, which varied according to the studied specie.

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Section: Introductionunclassified

Produção forrageira de gramíneas cultivadas sob luminosidade reduzida

et al. 1999

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“…Cuando las gotas de lluvia son interceptadas por los diferentes estratos del sistema, una parte del agua se evapora a la atmósfera, otra parte cae a la superficie del suelo, otra parte queda retenida en el follaje y tronco, y el resto es canalizado hacia el suelo a través del eje principal del tallo y se infiltra en el área más cercana a la base del árbol [72], prolongando la fase vegetativa de las gramíneas asociadas a los árboles [73]. Unido a lo anterior, se evidencia un mantenimiento de caudales y conservación de las fuentes hídricas, debido a que las diversas estructuras vegetales retienen partículas, reduciendo la sedimentación y permitiendo un escurrimiento del agua hacia las fuentes [74].…”

Section: Diversificación Delunclassified

PROPIEDADES FÍSICO-MECÁNICAS DE LA MADERA DE URACO(Ocotea brevipetiolata van der Werff),MUNICIPIO DE SIBUNDOY, PUTUMAYO

Gordo

Giraldo²,

Ramos³

2017

BSAA

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“…An example of a complementary effect is deferred grazing; by having browse feed available during a time of seasonal shortage, other areas of land can be relieved of grazing pressure and given an opportunity to consolidate. Another complementary effect is the increased growth of herbaceous species growing amongst browse plants due to shelter or shade effects [15,44].…”

Section: Economic Valuementioning

confidence: 99%

Trees and shrubs as sources of fodder in Australia

Lefroy¹,

Dann

Wildin³

et al. 1992

The Role of Trees in Sustainable Agriculture

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Abstract. Experience with browse plants in Australia is briefly reviewed in terms of their forage value to animals, their economic value to the landholder and their ecological contribution to landscape stability. Of the cultivated species only two have achieved any degree of commercial acceptance (Leucaena leucocephala and Chamaecytisus palmensis). Both of these are of sufficiently high forage value to be used as the sole source of feed during seasonal periods of nutritional shortage. Both are also leguminous shrubs that establish readily from seed. It is suggested that a limitation in their present use is the reliance on stands of single species which leaves these grazing systems vulnerable to disease and insects. Grazing systems so far developed for high production and persistence of cultivated species involve short periods of intense grazing followed by long periods of recovery. Similar management may be necessary in the arid and semi-arid rangelands where palatable browse species are in decline.

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Role of woody perennials in animal agroforestry

Cited by 44 publications

References 47 publications

Produção forrageira de gramíneas cultivadas sob luminosidade reduzida

Produção forrageira de gramíneas cultivadas sob luminosidade reduzida

PROPIEDADES FÍSICO-MECÁNICAS DE LA MADERA DE URACO(Ocotea brevipetiolata van der Werff),MUNICIPIO DE SIBUNDOY, PUTUMAYO

Trees and shrubs as sources of fodder in Australia

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