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| Registros recuperados: 63 | |
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| Costa, Jose Augusto Brunoro; Ponciano, Niraldo Jose; Souza, Paulo Marcelo de. |
| O objetivo deste trabalho foi comparar a forma de avaliação da qualidade da cana-de-açúcar nos estados do Rio de Janeiro, São Paulo e Espírito Santo. O sistema de pagamento de cana pelos açúcares totais recuperáveis – ATR, implantado em São Paulo foi adotado pelos demais estados, mas a dinâmica da adequação dos parâmetros deve ser reavaliada frequentemente. No estado do Rio de Janeiro, para a maior parte das comparações, a quantidade de ATR na cana foi inferior, indicando o menor valor no preço da tonelada de cana de fornecedores. -------------------------------------------The objective of this study was to compare the quality evaluation of sugar cane in Rio de Janeiro, São Paulo and Espírito Santo states. The sugar cane payment system by recoverable total... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agroindústria canavieira; Pagamento de cana; Açúcares totais recuperáveis; Cana-de-açúcar; Perdas industriais; Sugar cane agro-industry; Sugar cane payment; Recoverable total sugar; Sugar cane; Industrial lost; Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/109987 |
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| Pereira,Gener Tadeu; Souza,Zigomar Menezes de; Teixeira,Daniel De Bortoli; Montanari,Rafael; Marques Júnior,José. |
| The sampling scheme is essential in the investigation of the spatial variability of soil properties in Soil Science studies. The high costs of sampling schemes optimized with additional sampling points for each physical and chemical soil property, prevent their use in precision agriculture. The purpose of this study was to obtain an optimal sampling scheme for physical and chemical property sets and investigate its effect on the quality of soil sampling. Soil was sampled on a 42-ha area, with 206 geo-referenced points arranged in a regular grid spaced 50 m from each other, in a depth range of 0.00-0.20 m. In order to obtain an optimal sampling scheme for every physical and chemical property, a sample grid, a medium-scale variogram and the extended Spatial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simulation; Geostatistics; Sugar cane. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500002 |
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| Vargas-Villamil,Luis Manuel; Ku-Vera,Juan Carlos; Vargas-Villamil,Felipe; Medina-Peralta,Salvador; Avila-Vales,Eric José; Aranda-Ibañez,Emilio Manuel; Avendaño-Reyes,Leonel. |
| The objective of this study was to use the Turix model (a new mechanistic dynamic model that can be used for feed evaluation under tropical conditions), along with in situ and in vitro sugar cane experimental data from a previous study, to evaluate sugar cane kinetics through estimation of three parameters associated with ruminal bacterial growth: kM,SmL, the substrate uptake; kLM, the bacterial growth from intermediate metabolite; and Y VFAP,FS, the products related to volatile fatty acid yield. Values of these parameters for the whole sugar cane and its neutral detergent fiber (NDF) and acid detergent fiber (ADF) fractions were: a) kM, SmL, 16.20, 50.47 and 21.97 mL h-1 (mg M)-1 ; b) kLM, 96.00, 543.00 and 1,680.00 h-1 ; and, 1.02, 0.40 and 0.23 g g-1 ,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Model fitting; Parameter estimation; Ruminant; Simulation; Sugar cane. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400009 |
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| Menezes,Adriana Morato; Louvandini,Helder; Esteves,Geisa Isilda Ferreira; Dalcin,Luciana; Canozzi,Maria Eugênia Andrighetto; Barcellos,Júlio Otávio Jardim; McManus,Concepta. |
| The objective of this study was to evaluate performance and biometrics of lambs fed different sources of forage. Twenty-four six-month-old Santa Inês female lambs were randomly allocated to four experimental diets and housed in individual stalls. They weighed on average 26.35±0.20 kg. The diets were coast cross hay (HAY), cassava hay (CAS), dehydrated by-product of pea crop (PEA) and saccharin (SAC). The diets were formulated with the same amount of protein and energy with fixed levels of forage (60%) and concentrate (40%). Adaptation to the diet took 7 days, with 45 days on experiment. Weights and biometric measurements were obtained every fortnight and feed intake three times a week. Rights half-carcasses were weighed and sectioned into retail cuts, rib,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass; Cassava; Hay; Pea; Sheep; Sugar cane. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600007 |
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| Pegoraro,Rodinei Facco; Moreira,Cristiano Gonçalves; Dias,Daniel Gonçalves; Silveira,Thiago Correa. |
| ABSTRACT The implementation of conservationist systems of cultivation, with less soil turning and a greater deposition of plant residue, has increased the stocks of C and N in soil and humic substances, but may reduce the quality of the organic matter (SOM). The aim of this study was to evaluate the storage of carbon and nitrogen in plant residue, humic substances and soil at three depths (0-0.2, 0.2-0.4 and 0.4-0.6 m) and under five systems of cultivation: an old banana plantation (14 years cultivation), renovated banana plantation (renewed 1.5 years earlier), sugarcane plantation (two years cultivation), pasture (three-year-old Colonial grass), crotalaria juncea (cultivated yearly for five years) and native forest, as a reference of a natural semi-arid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vegetable residue; Crotalaria; Banana plantation; Sugar cane. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400574 |
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| Nicolella,Gilberto; Perez Filho,Archimedes; Souza,Manoel Dornelas de; Ferracini,Vera Lúcia. |
| The use of simulation models is probably the most efficient means for predicting the behavior of pesticides in the soil-plant-water system. The CMLS (Chemical Movement in Layered Soils) simulation model for predicting the fate of pesticides was used for studying the behavior of tebuthiuron, a herbicide used in sugar cane crops, from a sampling grid with 111 sampling points 200 m apart from one another and encompassing three types of soil: Ustic Quartzipsamment, Rhodic Hapludox and Typic Hapludox, all with medium and clay textures. The 373 points assessed by the simulator, generated from samples coming from the original grid and through the geostatistical methods of variography and ordinary kriging, returned the depth values reached by the herbicide after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbasin; Sugar cane; Tebuthiuron; Variography; Kriging. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100010 |
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| Oliveira,Júlio César Martins de; Reichardt,Klaus; Bacchi,Osny O.S.; Timm,Luis Carlos; Dourado-Neto,Durval; Trivelin,Paulo César Ocheuse; Tominaga,Tânia Toyomi; Navarro,Roberta de Castro; Piccolo,Marisa de Cássia; Cássaro,Fábio Augusto Meira. |
| Results of an organic matter management experiment of a sugar cane crop are reported for the first cropping year. Sugar cane was planted in October 1997, and labeled with a 15N fertilizer pulse to study the fate of organic matter in the soil-plant system. A nitrogen balance is presented, partitioning the system in plant components (stalk, tip and straw), soil components (five soil organic matter fractions) and evaluating leaching losses. The 15N label permitted to determine, at the end of the growing season, amounts of nitrogen derived from the fertilizer, present in the above mentioned compartments. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilizer; Nitrogen; N label; Soil; Sugar cane. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000300015 |
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| Souza,Zigomar Menezes de; Marques Júnior,José; Pereira,Gener Tadeu; Barbieri,Diogo Mazza. |
| Soils with small variations in relief and under the same management system present differentiated spatial variabilities of their attributes. This variability is a function of soil position in the landscape, even if the relief has little expression. The aim of this work was to investigate the effects of relief shape and depth on spatial variability of soil chemical attributes in a Typic Hapludox cultivated with sugar cane at two landscape compartments. Soil samples were collected in the intercrossing points of a grid, in the traffic line, at 0-0.2 m and 0.6-0.8 m depths, comprising a set of 100 georeferenced points. The spatial variabilities of pH, P, K, Ca, Mg, cation exchange capacity and base saturation were quantified. Small relief shape variations lead... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geostatistics; Kriging; Relief; Sugar cane. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200008 |
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| Correia,Núbia Maria; Leite,Gilson José. |
| The aerial spraying of plant ripeners on sugar cane (Saccharum officinarum L.) crops causes often the contamination of neighboring areas, which subsidizes formal complaints from the neighbors. These contaminations are due to spraying taking place during inadequate environmental conditions or from technical mistakes during the application. One of the most important causes of this contamination is the susceptibility of the species being cultivated surrounding sugar cane. In order to evaluate the effects of sugar cane plant ripeners trinexapac-ethyl and sulfometuron-methyl on peanuts, cotton, potato, coffee, citrus, beans, sunflower, cassava, rubber, soybean, and grapes, eleven experiments - one for each species - were carried out from May 2009 to Jan. 2010.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytointoxication; Ripener; Sugar cane. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000300004 |
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| Silva,Daniela Mariano Lopes da; Ometto,Jean Pierre Henry Balbaud; Lobo,Gré de Araújo; Lima,Walter de Paula; Scaranello,Marcos Augusto; Mazzi,Edmar; Rocha,Humberto Ribeiro da. |
| Several studies in tropical watersheds have evaluated the impact of urbanization and agricultural practices on water quality. In Brazil, savannas (known regionally as Cerrados) represent 23% of the country's surface, representing an important share to the national primary growth product, especially due to intense agriculture. The purpose of this study is to present a comprehensive evaluation, on a yearly basis, of carbon, nitrogen and major ion fluxes in streams crossing areas under different land use (natural vegetation, sugar cane and eucalyptus) in a savanna region of SE Brazil. Eucalyptus and sugar cane alter the transport of the investigated elements in small watersheds. The highest concentration of all parameters (abiotic parameters, ions, dissolved... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Savanna; Nutrients; Watershed; Sugar cane; Eucalyptus. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400002 |
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| Freitas,Carlos Henrique de; Setz,Eleonore Z. F.; Araújo,Alba R. B.; Gobbi,Nivar. |
| Capuchin monkeys occupy a wide range of habitats where they feed on fruits, arthropods, and vertebrates. Their large home ranges (80-900 ha) suggest that living in forest fragments may challenge their adaptability. We identified and quantified the main food items of Cebus libidinosus Spix, 1823 in forests fragments (100 ha) in southeastern Brazil. We recorded the feeding activities of two groups using scan sampling over a 13-month period. The diet was composed of fruits, crops, animal prey, seeds, plant matter and undetermined. Fruit was eaten more in the wet season than in the dry season, and maize and sugar cane consumption peaked in the early dry season. The proportion of fruit in the diet was positively correlated with fruiting intensity of zoochorous... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Franca; Gallery forest fragments; Maize; Sugar cane. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000100006 |
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| Ferreira,J.J.; Ruas,J.R.M.; Macedo,G.A.R.; Marcatti Neto,A.; Queiroz,D.S.; Silva,E.A.. |
| ABSTRACT Forty eight crossbred calves, 24 males and 24 females, with weight and age of 203.6±3.7kg and 11.8±1.0 months were allotted to the following treatments: MT- mineral salt ad libitum and sugar cane mixed with 10g kg-1 mixture of urea and ammonium sulfate in a 9:1 proportion; MA - sugar cane mixed with 16g kg-1 of a concentrate of urea (550g kg-1), ammonium sulfate (60g kg-1) and minerals (390g kg-1); SU - sugar cane mixed with 50g kg-1 of a concentrate of soybean meal (830g kg-1), urea (52g kg-1) and minerals (118g kg-1) and MC - corn silage mixed with 10g kg-1 of a concentrate of urea (500g kg-1), ammonium sulfate (50g kg-1) and minerals (450g kg-1). Minerals mixed with sugar cane (MA) resulted in greater weight gain (0.258 x 0.188kg d-1) for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calves; Corn silage; Minerals; Sugar cane; Weight gain. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501677 |
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| Registros recuperados: 63 | |
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