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| Catma, Serkan; Collins, Alan R.. |
| A mixed-integer linear programming model was formulated to minimize the cost of transport and processing of excess manure in the Chesapeake Bay watershed. The results showed that primarily poultry manure was moved out of surplus counties for land application or processing. In the base model, annual cost was more than $350 million, with the bulk of the cost arising from construction of energy facilities for poultry manure. Forestland application of poultry manure had the lowest average cost, and more forestland than agricultural land was used for manure application. The lowest cost scenario was $127 million annually when constraints were removed to expand manure application on agricultural land and allow unlimited construction of composting facilities. Such... |
| Tipo: Journal Article |
Palavras-chave: Mathematical programming; Water quality; Animal manure; Composting; Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/106063 |
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| Ciancio,Nathalia Riveros; Ceretta,Carlos Alberto; Lourenzi,Cledimar Rogério; Ferreira,Paulo Ademar Avelar; Trentin,Gustavo; Lorensini,Felipe; Tiecher,Tadeu Luis; De Conti,Lessandro; Girotto,Eduardo; Brunetto,Gustavo. |
| Animal manure is applied to the soil as a nutrient source, especially of nitrogen, to plants. However, manure application rates can be reduced with the use of N fertilizer in topdressing. The aim of this study was to evaluate crop responses to different application rates of animal manure sources, used alone and supplemented with mineral N topdressing, in a no-tillage system. The study was carried out from 2005 to 2008 on a Hapludalf soil. The treatments consisted of rates of 10, 20 and 30 m³ ha-1 of pig slurry (PS), and of 1 and 2 t ha-1 of turkey manure (TM), applied alone and supplemented with topdressed N fertilizer (TNF), as well as two controls, mineral fertilization (NPK) and one control without fertilizer application. Grain yield in common bean and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal manure; Crop rotation; No-tillage cropping system. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300023 |
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| Mattias,Jorge Luis; Ceretta,Carlos Alberto; Nesi,Cristiano Nunes; Girotto,Eduardo; Trentin,Eder Efrain; Lourenzi,Cledimar Rogério; Vieira,Renan Costa Beber. |
| Systematic pig slurry application to crop soils may lead to the accumulation of heavy metals in regions with intensive pig raising. The aim of this study was to evaluate the accumulation of Cu, Zn and Mn in soils under systematic pig slurry application. For this purpose, soil samples were collected from two of the most representative watersheds of Santa Catarina where the predominant activity is pig raising. In each watershed, 12 properties were chosen to evaluate the different systems of pig husbandry (complete cycle (CC), farrowing (FaU) and finishing units (FiU)). Based on information of the producers, soil samples were collected in areas with and without systematic manure application. To determine the total Cu, Zn and Mn content in soils and manure, a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metals; Animal manure; Environmental contamination. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400040 |
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| Couto,Rafael da Rosa; Ferreira,Paulo Ademar Avelar; Ceretta,Carlos Alberto; Lourenzi,Cledimar Rogério; Facco,Daniela Basso; Tassinari,Adriele; Piccin,Rogério; Conti,Lessandro De; Gatiboni,Luciano Colpo; Schapanski,Denis; Brunetto,Gustavo. |
| ABSTRACT Applications for long periods of organic animal waste as a source of nutrients to crops can contaminate the soil and the surface and subsurface waters. This study aimed to evaluate how the utilization of organic waste, after successive applications, affects P fractions in the soil and consequently environmental contamination. In an experiment conducted for 8 years, totaling 12 applications with pig slurry manure (PSM), liquid cattle manure (LCM), swine deep bedding (SDB), and mineral fertilizer (NPK), 460; 505; 1.111; and 535 kg P∙ha−1 were added to the soil through PSM, LCM, SDB, and NPK, respectively. In September 2012, soil samples were collected in the layers 0.0 – 0.04; 0.04 – 0.08; 0.08 – 0.12; 0.12 – 0.16; 0.16 – 0.20 m, prepared and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal manure; Availability; P fractionation; Environmental contamination. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000100155 |
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| Machado,Débora Cabral; Maia,Carla Marques; Carvalho,Isabel Dias; Silva,Natan Fontoura da; André,Maria Cláudia Dantas Porfírio Borges; Serafini,Álvaro Bisol. |
| An attempt was made to evaluate microbiological quality of horticultural crops grown organically. Three species of vegetables were used, lettuce (Lactuva sativa), radish (Raphanus sativus) and spinach (Tetragonia expansa), grown organically, in fertile soil. Six different treatments were applied: mineral fertilizer, chicken, cow, and pig manure, chicken litter and cow manure, in association with a liquid foliar biofertilizer. These crops were handled according to correct agronomic practices for growing crops organically for commercial purposes. Samples were examined for the Most Probable Number (MPN/g/mL) of total and fecal coliforms and to detect the presence of Escherichia coli and Salmonella spp. All analyzed samples were considered acceptable for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic vegetables; Animal manure; Coliforms; Escherichia coli; Salmonella. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400025 |
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