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| De Conti,Lessandro; Ceretta,Carlos Alberto; Ferreira,Paulo Ademar Avelar; Lorensini,Felipe; Lourenzi,Cledimar Rogério; Vidal,Renan Fagan; Tassinari,Adriele; Brunetto,Gustavo. |
| The application of pig slurry rates and plant cultivation can modify the soil phosphorus (P) content and distribution of chemical species in solution. The purpose of this study was to evaluate the total P, available P and P in solution, and the distribution of chemical P species in solution, in a soil under longstanding pig slurry applications and crop cultivation. The study was carried out in soil columns with undisturbed structure, collected in an experiment conducted for eight years in the experimental unit of the Universidade Federal de Santa Maria (UFSM), Santa Maria (RS). The soil was an Argissolo Vermelho distrófico arênico (Typic Hapludalf), subjected to applications of 0, 20, 40, and 80 m3 ha-1 pig slurry. Soil samples were collected from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic wastes; Soil solution; Chemical speciation; Visual Minteq. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300774 |
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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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