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| Registros recuperados: 16 | |
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| Pértile,Patricia; Albuquerque,Jackson Adriano; Gatiboni,Luciano Colpo; Costa,André da; Warmling,Maria Izabel. |
| In Brazil extensive areas are covered with pine forests, planted for pulp and paper production. This industry generates solid alkaline waste, such as dregs. The application of this dregs to forest soils is an alternative for soil acidity correction and plant nutrient supply, as well as a solution for its proper disposal. The purpose of this study was to compare the residual effect of surface application of dregs and dolomitic lime on (a) changes in the physical and chemical properties of an acidic soil and (b) pine tree development. The experiment was carried out in 2004 in Bocaina do Sul, Santa Catarina, consisting of the application of increasing dreg and lime rates to a Pinus taeda L. production area, on a Humic Cambisol, in a randomized block design... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dregs; Lime; Alkaline front; Soil physical quality; Pinus taeda L. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000300024 |
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| Souza,Renato Ferreira de; Ávila,Fabrício William; Faquin,Valdemar; Pozza,Adélia Aziz Alexandre; Carvalho,Janice Guedes; Evangelista,Antônio Ricardo. |
| Silicates can be used as soil correctives, with the advantage of being a source of silicon, a beneficial element to the grasses. However, high concentrations of silicon in the plant would affect the digestibility of the forage. To evaluate the influence of the substitution of the calcium carbonate by calcium silicate on the nutrition, biomass production and the feed quality of the palisade grass [Urochloa brizantha (C. Hochstetter ex A. Rich.) R. Webster], three greenhouse experiments were conducted in completely randomized designs with four replications. Experimental units (pots) contained a clayey dystrophic Rhodic Haplustox, a sandy clay loam dystrophic Typic Haplustox and a sandy loam dystrophic Typic Haplustox. Each soil received substitution... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urochloa brizantha; Pasture; Lime; Silicon; Feed value. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500003 |
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| Rossato,Otavio Bagiotto; Ceretta,Carlos Alberto; Silva,Leandro Souza da; Brunetto,Gustavo; Adorna,Jaqueline Cristiane; Girotto,Eduardo; Lorenzi,Cledimar Rogério. |
| In Rio Grande do Sul State (RS), Southern Brazil, aluminum saturation in many areas under no-till system is high and base saturation low in the 0.10-0.20 m layer (subsurface), which may reduce the grain yield of annual crops. The objective of this study was to evaluate if the occurrence of high aluminum saturation and low base saturation in the subsurface, under a no-till system, represents a restrictive environment for crop production, as well as to evaluate forms of lime incorporation for soil acidity correction in the subsurface. For this purpose, an experiment was carried out with soybean (2005/2006), corn (2006/2007), wheat (2007) and soybean (2007/2008) crops, in a Rhodic Hapludox (USDA, 1999) with sandy loam texture, under no-till for four years in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lime; Soil tillage systems; Aluminum saturation; Base saturation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000300018 |
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| Atti-Santos,Ana Cristina; Rossato,Marcelo; Serafini,Luciana Atti; Cassel,Eduardo; Moyna,Patrick. |
| In this work lime essential oils were extracted by hydrodistillation and supercritical carbon dioxide. In the case of hydrodistillation, the parameters evaluated were extraction time and characteristics of the plant material. In supercritical extraction, the parameters evaluated were temperature, pressure, CO2 flow, extraction time and material characteristics. Considering citral content, the best results for hydrodistillation were obtained with a distillation time of 3 hours using whole peels. The best results for supercritical extraction were found using 60ºC, 90 bar, at a CO2 flow rate of 1 mL/ min for 30 minutes using milled peels. The best yields of lime oil were obtained by hydrodistillation (5.45% w/w) and supercritical extraction (7.93% w/w) for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus latifolia; Lime; D-limonene; Supercritical carbon dioxide; Hydrodistillation. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100020 |
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| Magalhães,Albertí Ferreira; Pires,Aureliano José Vieira; Carvalho,Gleidson Giordano Pinto de; Silva,Fabiano Ferreira da; Nascimento Filho,Carlos Souza; Carvalho,Aline Oliveira. |
| The objective of this study was to evaluate intake, performance and nutrient digestibility of sheep supplemented with sugarcane ensiled with four levels of calcium oxide (0.0, 0.8, 1.6 and 2.4%) and urea (1.5%), on a natural matter basis. Twenty castrated Santa Ines lambs with 24.09 kg average weight were housed in individual 1.5 m² pens, distributed in a completely randomized design. The diet supplied had a roughage:concentrate ratio of 70:30 and the experimental period lasted 77 days, of which 14 days were used for adaptation to the diet and three 21-day periods for data collection. No differences were observed for the average daily intake of dry matter, ether extract, neutral detergent fiber, neutral detergent fiber corrected for ash and protein, total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calcium/phosphorus ratio; Chemical additives; Lime; Roughage; Silage. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000001 |
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| Oliveira,Patrícia Perondi Anchão; Boaretto,Antonio Enedi; Trivelin,Paulo Cesar Ocheuze; Oliveira,Wladecir Salles de; Corsi,Moacyr. |
| The reconstitution of soil fertility is essential in the process of pasture restoring, liming being the first action to be taken in this direction. The liming recommendation for pastures needs more technical information as the application method and rate. A field experiment was carried out to evaluate the liming and fertilization practices to restore a degraded Brachiaria decumbens pasture. The following factors were studied: liming method (incorporated in soil by disking or not); level of base saturation (40, 50 or 80%) and lime type (55, 70 or 90 of ECC). Liming and fertilization (NPK and micronutrients) increased both the forage yield and its root system, these being more evident in the second year, even using the same rates of lime and fertilizer used... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ECC; Lime; Restoration; Base saturation; Acid soils. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100019 |
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| Fadavi, Ali; Mehrabi, Ali Ashraf. |
| Low shrinkage is an important parameter in marketing of dried lime fruits. An experiment conducted in order to evaluate affective factors on shrinkage coefficient of a dried lime fruit. Factors are defined as position of rest (vertical and horizontal), mechanical processing (length needling, width needling, slotting and intact or no processing), and temperature (shadow dried, sun dried, 40oC, 105oC and 200oC). Measured characters on a fruit were initial volume, final volume, and shrinkage coefficient. The average initial moisture content of limes was 476 % kg (kg db)-1. The position factor had no significant effect on shrinkage coefficient, but mechanical processing and temperature affected the final volume and consequently the shrinkage coefficient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lime; Shrinkage; Drying; Mechanical processing and temperature. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2492 |
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| Crusciol,Carlos Alexandre Costa; Garcia,Rodrigo Arroyo; Castro,Gustavo Spadotti Amaral; Rosolem,Ciro Antonio. |
| Especially under no-tillage, subsuface soil acidity has been a problem, because it depends on base leaching, which has been associated with the presence of low molecular weigth organic acids and companion anions. The objective of this study was to evaluate exchangeable base cation leaching as affected by surface liming along with annual urea side-dressing of maize and upland rice. Treatments consisted of four lime rates (0, 1500, 3000, and 6000 kg ha-1) combined with four nitrogen rates (0, 50, 100, and 150 kg ha-1) applied to maize (Zea mays) and upland rice (Oryza sativa), in two consecutive years. Maize was planted in December, three months after liming. In September of the following year, pearl millet (Pennisetum glaucum) was planted without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lime; Nitrogen fertilization; Nutrient cycling; Tropical soils. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600014 |
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| Khairo, Salahadin A.; Norton, Mark R.; Garden, P.; Graham, Phil; Langford, Colin; Armstrong, P.; Brassil, T.. |
| Soil acidification is one of the major forms of soil degradation in higher rainfall areas of the tablelands of NSW. A grazing experiment was conducted near Sutton, NSW, to assess the effect of various rates of superphosphate, lime, sewage ash and stocking rates on wool production and sustainability between 1999 and 2008. The results from the discounted cash flow analysis show that the net present value of the treatment without lime, the lower rate of superphosphate and the lowest stocking rate returned the highest net present value of $266.30/ha. Raising the application of superphosphate from 125kg/ha every two to three years to 250kg/ha every year on un-limed and limed soil reduced the net present value by $278.70/ha and $249.30/ha, respectively. The... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Economic; Acid soil; Lime; Superphosphate; Sewage ash; Stocking rate; Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/47939 |
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| Khairo, Salahadin A.; Norton, Mark R.. |
| Soil acidity is one of the major farm management problems on the Southern Tablelands of NSW. Soil acidity occurs naturally and yet some agricultural practices exacerbate the process through nitrification, leaching, removal of produce and accumulation of organic matter in the soil. A grazing experiment was conducted between 1999 and 2008 near Sutton, NSW, to assess the impact of various combinations of lime and superphosphate application, and stocking rates, on the profitability and sustainability of wool production on the Southern Tablelands. The profitability of 15 alternative experimental treatments was assessed using the discounted cash flow analysis method for a Merino wether enterprise. The results revealed that the highest net present value was... |
| Tipo: Article |
Palavras-chave: Lime; Superphosphate; Profitability; Stocking rate; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/120866 |
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| Registros recuperados: 16 | |
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