|
|
|
Registros recuperados: 25 | |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
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: Circular Técnica (INFOTECA-E) |
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 |
| |
|
| |
|
|
Chitsondzo, Clemencia Carlos Eduardo; Silva, Ivan Crespo. |
This study was carried out in order to characterize and evaluate the home gardens in Machipanda, Manica Province (Mozambique). Interviews were conducted at 37 heads of households. The results were analyzed using descriptive statistics. To facilitate information understanding and analysis, they were grouped into a SWOT Matrix, so that its components: strengths, weaknesses, opportunities and threats in relation to the backyards studied, were highlighted. The backyards were mostly irregular, with an area ranging from 400-5,000 m2 with average of 770.27 m2. In the home gardens it was found that 90% practiced agrossilvipastoril system and 10% practiced agroforestry system. Twenty-four tree species belonging to 17 botanic families were identified. The most... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroforestry systems; Family gardens; Subsistence farming; Agrobiodiversity Engenharia Florestal Sistemas agroflorestais; Hortas familiares; Agricultura de subsistência; Agrobiodiversidade. |
Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/413 |
| |
|
|
Cosenza, Diogo Nepomuceno; Oliveira Neto, Silvio Nolasco de; Jacovine, Laércio Antônio Gonçalves; Rodrigues, Caroline Ribeiro; Rode, Rafael; Soares, Vicente Paulo; Leite, Helio Garcia. |
Por se tratar de uma atividade complexa, os estudos de viabilidade econômica de sistemas agroflorestais (SAFs) exigem maior esforço para avaliação. Dentre os motivos estão a maior quantidade de elementos a serem considerados, a necessidade de prever os efeitos das interações entre as diferentes espécies consorciadas e a dificuldade de valorar os benefícios ambientais do sistema. Dessa forma, o objetivo deste trabalho foi analisar e sintetizar os principais métodos de avaliação econômica descritos na literatura. Através dele é possível determinar quais itens devem ser computados na análise e como atribuir valores a eles para definir as principais receitas e custos do projeto. Ainda, podem ser traçados os principais métodos de análise econômica e de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Florestal Análise econômica; Sistemas agroflorestais; Gestão de projetos Economic analysis; Agroforestry systems; Project management. |
Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1218 |
| |
|
| |
|
|
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 |
| |
|
|
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 |
| |
|
| |
|
|
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 |
| |
|
|
Machado,M.S.; Ferreira,L.R.; Oliveira Neto,S.N.; Moraes,H.M.F.; Gonçalves,V.A.; Felipe,R.S.. |
The aim of this study was to evaluate the effect of different crown diameters on the early growth of eucalyptus intercropped with Brachiaria decumbens in a silvopastoral system. The experiment was conducted in a B. decumbens established pasture, where hybrid eucalyptus urograndis (clone GG100) was planted, spaced 8 x 3 m. A randomized block design was used, with six replicates. Treatments consisted of five crown diameters (0.0, 1.0, 1.5, 2.0, and 3.0 m) surrounding the eucalyptus plants. Five weeding hoes were performed throughout the experiment, according to the different crown diameters, aiming to maintain the eucalyptus plants free from B. decumbens interference. At 90, 180, 270, and 360 DAP, the height and the diameter of the eucalyptus plants were... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroforestry systems; Weed competition; Control ranges. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400011 |
| |
Registros recuperados: 25 | |
|
|
|