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| Registros recuperados: 27 | |
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| ORTIZ,Daniel; MORENO,Flavio; DÍEZ,Maria Claudia. |
| ABSTRACT In the Amazon region, agroforestry systems (AFSs) are recommended as a sustainable production alternative for local communities. A common component in Amazonian AFSs are tropical fruit trees, which can form the canopy or grow in the understory. In this study, we evaluated the effect of high radiation on photosynthesis, growth and seedling survival of four Amazonian fruit-tree species: Theobroma cacao, Eugenia stipitata, Inga edulis and Psidium guajava. Growth, chlorophyll fluorescence, gas exchange, and leaf pigments were measured in seedlings of each species grown for 12 months inside shade houses with low (8%), medium (30%) and high relative illumination (100%). Eugenia stipitata and T. cacao had the lowest acclimation capacity to high solar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acclimation; Agroforestry systems; Carotenoids; Chloroplasts; Photosystem II. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100001 |
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| Peixoto,M.R.S.; Lourenço Junior,J.B.; Faturi,C.; Garcia,A.R.; Nahúm,B.S.; Lourenço,L.F.H.; Meller,L.H.; Oliveira,K.C.C.. |
| The influence of the diet on the quality of buffalo (Bubalus bubalis) carcasses of crossbred Murrah and Mediterranean, concentrate fed on traditional (corn/soybean) or on agro-industrial residues (palm oil and coconut cakes) was studied. The animals were sacrificed in a slaughterhouse, and physical and physical-chemical analyses in the carcasses were carried out after 24 hours, and instrumental color and texture analyses of the Longissimus dorsi were carried out 48 hours after cooling. The animals supplemented with palm oil cake had better carcass conformation and fat trim, and differences (P<0.05) in the percentage of fat in the carcass fat thickness and coverage were observed. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Buffalo; Feed efficiency; Agroforestry systems; Oil palm cake; Coconut cake. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400034 |
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| ARAUJO FILHO, J. A. de; CARVALHO, F. C. de. |
| Neste trabalho esta sendo proposto o desenvolvimento de alternativas tecnologicas que permitam o manejo sustentado da vegetacao da caatinga, com o objetivo de evitar a degradacao ambiental e promover a recuperacao da produtividade agricola e pecuaria em niveis economicos e ecologicos. A manipulacao da vegetacao, atraves do raleamento, do rebaixamento, do raleamento-rebaixamento e do enriquecimento, pode aumentar a disponibilidade de forragem em ate 800% e a producao animal em ate 1500%. A sustentabilidade da producao agricola em condicoes tropicais sera obtida com sua fixacao, substituindo-se as praticas atuais de manejo da pecuaria, tais como o banco rocado. O manejo da vegetacao da caatinga com vistas a obtencao de produtos nao madereiro, ainda e... |
| Tipo: Folhetos |
Palavras-chave: Código florestal; Sistema agrossilvipastoril; Slash and burn agriculture; Woody plant; Agrosilvopastoral systems; Agroforestry systems; Agricultura sustentável; Desenvolvimento sustentável; Caatinga; Vegetação nativa; Planta lenhosa; Lenha; Cultivo em faixa; Plantio; Agrossilvicultura; Cultivo migratório; Fuelwood; Sustainable agriculture; Semiarid soils; Alley cropping; Sustainable development; Shifting cultivation; Brazil. |
| Ano: 1997 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514827 |
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| Suárez,Leonardo Rodríguez; Josa,Yuli Tatiana Paladines; Samboni,Erika Judith Astudillo; Cifuentes,Karla Dayana Lopez; Bautista,Ervin Humprey Durán; Salazar,Juan Carlos Suárez. |
| Abstract: The objective of this work was to evaluate the soil macrofauna and the bioindicator taxonomic groups associated with different land uses in the Colombian Amazon. Twelve agroforestry arrangements were studied and compared with to the native forest and pasture. For each land use, six monoliths were randomly selected and divided into four layers (litter, and 0-10, 10-20, and 20-30 cm soil depths). The variables considered in the analysis of land use effects were: individuals per square meter, order richness, Shannon’s diversity index, and Pielou’s evenness index. The greatest values for soil macrofauna density and diversity occurred in the forest, in contrast with the pasture. The principal component analysis distinguished land use according to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroforestry systems; Bioindicators; Richness; Soil macrofauna. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201383 |
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| Tonini,Helio; Magalhães,Ciro Augusto de Souza; Faria Neto,Austeclínio Lopes de. |
| Abstract: The objective of this work was to determine indicator methods that help to establish the first thinning age of trees to be used in crop-livestock-forest integration systems based on the relationships between eucalyptus growth and soybean and corn production. The experiment followed a completely randomized block design, with four replicates and three production systems (crop monoculture, forest planting monoculture, and crop-forest integration). The percentage of entries and Veiga’s methods, as well as the target growth rates, were assessed to set the thinning age to be adopted for integration systems. The percentage of entries method, the age of the maximum mean annual volume increase, or tree age when diameter growth stagnation occurs did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroforestry systems; Land equivalent ratio; Percentage of entries method; Veiga’s method. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102507 |
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| Santos,Marcia Vitoria; Ferreira,Evander Alves; Cruz,Priscila Junia Rodrigues da; Ribeiro,Victor Hugo Vidal; Alencar,Brenda Thaís Barbalho; Cabral,Cássia Michelle; Francino,Dayana Maria Teodoro; Aspiazú,Ignácio. |
| Abstract: The objective of this work was to evaluate the effects of different arrangements of eucalyptus plants on the morphoanatomical characteristics of leaf blades of 'Marandu' grass [(Urochloa brizantha (Syn. Brachiaria brizantha)] plants cultivated in agrosilvopastoral systems. The experiment was set in field conditions in a randomized complete block design with four replicates, in which the plots were represented by planting spacings of eucalyptus (12x2 and 12x4 m), and the subplots, by the distance between 'Marandu' grass and eucalyptus rows (6, 4, and 2 m). A control was added, composed by 'Marandu' grass cultivated in full sun. Variables of the leaf anatomy of 'Marandu' grass were evaluated for shading interference by trees. The distance of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urochloa brizantha; Agroforestry systems; Forest-livestock-crop integration; Morphoanatomical characteristics. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201320 |
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| Registros recuperados: 27 | |
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