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| Nascimento,Clístenes Williams Araújo do; Fontes,Renildes Lúcio Ferreira; Melicio,Adilson César Fortes Dias. |
| The knowledge of the chemical forms of copper in soils and the relationships of these forms with soil copper availability are important for predicting the copper behavior in the soil-plant system. The present work studies the influence of liming on the available contents of copper as well as on the forms of copper fractions in six types of Oxisols. Soil samples, with and without liming, received copper at rates of 0.0, 20.0 and 40.0 mg dm-3 and remained incubated for 30 days. Then, available copper was extracted with Mehlich-1, Mehlich-3, DTPA and EDTA solutions, and analyzed by atomic absorption spectrophotometry. Additionally, soil samples were extracted in a sequential procedure to determine Cu in fractions of soil, as follows: exchangeable-Cu fraction,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fractioning; Micronutrients; Soil analysis. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100025 |
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| Hygino, Bruna; Alcalde, Claudete Regina; Diaz, Tatiana Garcia; Olivo, Paula Martins; Santos, Geraldo Tadeu dos; Silva, Caroline Isabela da. |
| This study was performed to characterize feed used in diets for Saanen goats. The feedstuffs were: Tifton 85 hay (Cynodon spp.), soybean meal, ground corn, soybean hulls, ground ear corn and dried cassava residue. Contents were determined for dry matter, ash, crude protein, ether extract, neutral detergent fiber, acid detergent fiber, physically effective fiber and lignin, and organic matter, total carbohydrates and non-fiber carbohydrates were estimated. Carbohydrates were divided into fractions A + B1 (rapidly degradable), B2 (potentially degradable) and C (non-degradable); and the protein in fractions A (soluble), B1 (rapid ruminal degradation), B2 (intermediate degradation), B3 (slow degradation) and C (indigestible). To determine the gas production an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.03.02-8 byproduct; Fractioning; Gas production; Goats; Ruminal degradation.. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28705 |
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