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| Pereira,Thiago Torres Costa; Almeida,Ivan Carlos Carreiro; Oliveira,Fábio Soares de; Schaefer,Carlos Ernesto Gonçalves Reynaud; Pinheiro,Leandro de Souza; Matuk,Fernanda Ayaviri. |
| ABSTRACT: Currently, the Brazilian savanna (Cerrado) represents the main agricultural area of the country, comprising a great variety of landscapes and soils, geological formations and vegetation patterns, as well as the major watershed. We studied the hydropedology and morphometry of a representative catchment (Frutal river), on a high tableland (Chapada) in the Triângulo Mineiro region, Brazil, describing the soil-water-landscape relationships to understand land use and water resources. To this end, we applied physical, chemical, micromorphological, and morphometric methods. When dry, compaction was observed in well-structured Ferralsols (Latossolos) with medium texture under intensive agriculture, reducing the water recharge capacity. The soil carbon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhodic Ferralsols; Gleysols; Hydromorphic savannas; Veredas. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100503 |
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| Oliveira,Ermelinda Maria Mota; Ruiz,Hugo Alberto; Alvarez V,Víctor Hugo; Ferreira,Paulo Afonso; Costa,Fernanda Oliveira; Almeida,Ivan Carlos Carreiro. |
| Nutrients are basically transported to the roots by mass flow and diffusion. The aim of this study was to quantify the contribution of these two mechanisms to the acquisition of macronutrients (N, P, K, Ca, Mg, and S) and cationic micronutrients (Fe, Mn, Zn, and Cu) by maize plants as well as xylem exudate volume and composition in response to soil aggregate size and water availability. The experiment was conducted in a greenhouse with samples of an Oxisol, from under two management systems: a region of natural savanna-like vegetation (Cerradão, CER) and continuous maize under conventional management for over 30 years (CCM). The treatments were arranged in a factorial [2 x (1 + 2) x 2] design, with two management systems (CER and CCM), (1 + 2) soil sifted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerradão; Continuous maize; Soil water potential. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200005 |
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| Lana,Rogério de Paula; Camardelli,Maíra Machado Leal; Queiroz,Augusto César de; Rodrigues,Marcelo Teixeira; Eifert,Eduardo da Costa; Miranda,Eloísio Nunes; Almeida,Ivan Carlos Carreiro. |
| Objetivou-se, neste experimento, verificar os efeitos da adição de óleo de soja e/ou de extrato etanólico de própolis na alimentação de cabras leiteiras sobre o consumo, a digestibilidade de nutrientes, a produção e composição do leite e alguns parâmetros de fermentação ruminal. Foram utilizadas dezesseis cabras Alpinas (quatro fistuladas no rúmen). Os animais foram alocados em quatro quadrados latinos 4x4, em arranjo fatorial 2x2 dos tratamentos. Foram adicionados ao concentrado 0 ou 120 g de óleo de soja e 0 ou 10 mL de extrato etanólico de própolis/animal/dia (30% p/v de própolis bruta moída em solução alcoólica a 70% em água). As dietas foram isoprotéicas, com 11,5% de PB, e compostas de 67% de silagem de milho e 33% de concentrado à base de fubá de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caprinos; Digestibilidade; Leite; Óleo de soja; Rúmen. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982005000200035 |
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