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| Registros recuperados: 280 | |
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| Moraes,Eduardo Henrique Bevitori Kling de; Paulino,Mário Fonseca; Moraes,Kamila Andreatta Kling de; Valadares Filho,Sebastião de Campos; Lazzarini,Isis; Monnerat,João Paulo Ismério dos Santos; Couto,Victor Rezende Moreira; Souza,Marcos Gonçalves de. |
| The objective of this study was to determine requirements of calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na) for grazing zebu bovines. The experiment area was composed of Brachiaria decumbens paddocks. Twenty-seven non-castrated animals, with initial live weight of 311.0 kg and at an average age of 14 months were used. Three animals were slaughtered, after adaptation period, so they were used as control for estimates of empty body weight and initial body composition of animals in the experiment. Out of the 24 remaining animals, four were sent to the maintenance group with restrict grazing time to limit energy intake close to the maintenance level. The other 20 animals were distributed in four treatments: mineral mixture,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macro minerals; Pasture; Requirement; Zebu cattle. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200023 |
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| Lubowski, Ruben N.; Vesterby, Marlow; Bucholtz, Shawn; Baez, Alba; Roberts, Michael J.. |
| This publication presents the results of the latest (2002) inventory of U.S. major land uses, drawing on data from the Census, public land management and conservation agencies, and other sources. The data are synthesized by State to calculate the use of several broad classes and subclasses of agricultural and nonagricultural land over time. The United States has a total land area of nearly 2.3 billion acres. Major uses in 2002 were forest-use land, 651 million acres (28.8 percent); grassland pasture and range land, 587 million acres (25.9 percent); cropland, 442 million acres (19.5 percent); special uses (primarily parks and wildlife areas), 297 million acres (13.1 percent); miscellaneous other uses, 228 million acres (10.1 percent); and urban land, 60... |
| Tipo: Report |
Palavras-chave: Land use; Land-use change; Agricultural land; Nonagricultural land; Cropland; Forest-use land; Forestland; Pasture; Rangeland; Rural residential land; Special uses; Urban land; Land Economics/Use. |
| Ano: 2006 |
URL: http://purl.umn.edu/7203 |
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| PRIMAVESI, A. C.; PRIMAVESI, O.; GODOY, R.. |
| Em experimento com delineamento de blocos ao acaso e quatro repetições, conduzido na Embrapa Rondônia, em Porto Velho, empregando-se a metodologia de diagnóstico o por subtracao, procurou-se determinar os nutrientes limitantes no solo (Latossolo Amarelo) sob pastagem degradada de B. Brizantha cv. Marandu. Os niveis e os adubos, utilizandos no tratamento completo foram (em kg/ha): 120 de N (ureia), 100 de P2O5 (superfosfato triplo) 100 k2O (cloreto de potassio) 50 de S (enxofre elementar) e 30 de FTE-BR 12, alem da calagem (calcario dolomitico - PRNT 60%)visando lelvar a saturacao de bases a 40%. Os resultados indicam que os principais nutrientes limitantes ao crescimento da parte aerea da graminea foram o N,P,K e S, enquanto que na composição química da... |
| Tipo: Separatas |
Palavras-chave: Amazônia Ocidental; Fertilizacao; Nutrientes limitantes; Pastagenm; Pasture; Fertility.; Nutrients.. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/45091 |
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| SOUZA FILHO, A. P. da S.; PIMENTEL, D. M.; MEIRELLES, P. R. de L.. |
| Com o advento do período de estiagem, 3 a 4 meses, que anualmente ocorre no Amapá, as pastagens nativas que compõem as extensas áreas de campo cerrado ficam bastantes secas, induzindo os pecuaristas que ocupam estas áreas a lançarem mão do uso do fogo, como prática de manejo, visando principalmente, eliminar o material morto resultante da estiagem e melhorar a qualidade da forragem produzida nos primeiros meses da estação chuvosa. Porém a utilização indiscriminada do fogo como se vem verificando na região, pode estar contribuindo decisivamente para a diminuição da potencialidade destas pastagens, reduzindo o vigor e a frequência de gramíneas desejaveis e ensejando o aparecimento de espécies indesejaveis, geralmente mais resistente ao fogo. |
| Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Brasil; Amapá; Pasture; Management.; Cerrado; Manejo; Pastagem.; Brazil; Savannas.. |
| Ano: 1986 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341787 |
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| Taylor, Philip Eugene. |
| Interest in Management Intensive Grazing (MIG) of dairy cattle has increased during the last 2 decades. Most dairy producers utilizing MIG were former confinement or non-intensive pasture operations while the others started their operation with MIG. While research publications tout the financial and other benefits of MIG, often comparing them to non-MIG dairies, and anecdotal evidence in popular farm press has shown MIG in a favorable light, comparing a MIG dairy farm to itself before and after the management switch has not been a subject of research scrutiny. Knowing the potential impact of a switch to MIG prior to making a management decision to do so would be a significant piece of information for a dairy farm to understand if contemplating such a... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Dairy; Grazing; Economics; Pasture; Management; Farm; Farm Management; Livestock Production/Industries; Production Economics; Q10; Q12; Q19. |
| Ano: 2009 |
URL: http://purl.umn.edu/56008 |
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| Gonzalez,Helenice de Lima; Velho,Ione Maria Pereira Haygert; Silva,Marcelo Abreu da; Medeiros,Renato Borges de; Paim,Nilton Rodrigues; Nörnberg,José Laerte. |
| This study was carried out to evaluate the effect of the use of supplementation in pasture cultivated with Avena strigosa (black oats), Lolium multiflorum (ryegrass) and Vicia sativa L. (common vetch) on the composition and somatic cells count (SCC) of Jersey cow milk. Eight cows of the Jersey breed were separated by milk production, lactation period and live weight and were randomly blocked into two homogeneous groups (one with supplementation and other only on pasture), in a randomized complete design. Both groups were allowed to pasture for about 7 hours per day in a rotational grazing system in strips, with a one-day occupation period. The supplemented group was fed daily with 8 kg of supplement made of soy bean meal, soy shells, calcium limestone and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk composition; Pasture; Somatic cells count. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001000018 |
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| Rita,Joice Cleide de Oliveira; Gama-Rodrigues,Antonio Carlos; Gama-Rodrigues,Emanuela Forestieri; Zaia,Francisco Costa; Nunes,Danielle Aparecida Duarte. |
| In unfertilized, highly weathered tropical soils, phosphorus (P) availability to plants is dependent on the mineralization of organic P (Po) compounds. The objective of this study was to estimate the mineralization of total and labile Po in soil size fractions of > 2.0, 2.0-0.25 and < 0.25 mm under leguminous forest tree species, pasture and "capoeira" (secondary forest) in the 0-10 cm layer of a Red-Yellow Latosol after 90 d of incubation. The type of vegetation cover, soil incubation time and soil size fractions had a significant effect on total P and labile P (Pi and Po) fraction contents. The total average Po content decreased in soil macroaggregates by 25 and 15 % in the > 2.0 and 2.0-0.25 mm fractions, respectively. In contrast,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bowman's extraction method; Leguminous forest tree species; Pasture; Capoeira (secondary forest). |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500010 |
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| Registros recuperados: 280 | |
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