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| Conti,Lessandro De; Ceretta,Carlos Alberto; Couto,Rafael da Rosa; Ferreira,Paulo Ademar Avelar; Silva,Lincon Oliveira Stefanello da; Piccin,Rogério; Lourenzi,Cledimar Rogério; Girotto,Eduardo; Brunetto,Gustavo. |
| Abstract: The objective of this work was to evaluate the effect of pig slurry applications on the exchangeable Al content, activity, and distribution of Al chemical species in the soil solution. Soil samples of a Typic Hapludalf were obtained from an experiment conducted during eight years, with 19 applications of 0, 20, 40, and 80 m3 ha-1 pig slurry. The soil samples were collected in stratified layers to determine exchangeable Al content and to extract the soil solution by the saturated soil paste method. The concentrations of the main cations and anions, dissolved organic carbon, and pH in the soil solution were determined. The distribution of the chemical species of Al and the activity of the Al3+ species were obtained through the Visual Minteq... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inorganic ligand; Organic amendment; Phytotoxicity; Soil solution. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000914 |
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| Brunetto,Gustavo; Oliveira,Bruno Salvador; Ambrosini,Vítor Gabriel; Couto,Rafael da Rosa; Sete,Paula Beatriz; Santos Junior,Elano dos; Loss,Arcângelo; Silva,Lincon Oliveira Stefanello da; Gatiboni,Luciano Colpo. |
| ABSTRACT: Weed management in apple orchards (Malus domestica) can affect the leaching of nitrogen (N) in soil. The study aimed to evaluate the potential leaching of N forms in soil of an apple orchard with different weed management treatments. The experiment was conducted in an apple orchard implanted in 2008. In October 2011, 80 plants were selected and the following treatments were implemented: no weed management (NM), desiccation of weeds on the tree row with herbicide use (DR) and mechanical mowing of weeds on the tree row (MR). Yield was evaluated in the 2011/2012, 2012/2013 and 2013/2014 crop seasons. In May 2012 porous cup lysimeters were installed in the NM, DR and MR treatments. In the solution collected at 0.20m, NH4 +-N and NO3 --N were analyzed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mineral N; Nitrate; Ammonia; Malus domestica. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000500251 |
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| Ciotta,Marlise Nara; Ceretta,Carlos Alberto; Silva,Lincon Oliveira Stefanello da; Ferreira,Paulo Ademar Avelar; Sautter,Claudia Kaehler; Couto,Rafael da Rosa; Brunetto,Gustavo. |
| ABSTRACT: Content of exchangeable potassium (K) in t soil may influence on its content in grapevines leaves, grape yield, as well as, in must composition. The study aimed to assess the interference of exchangeable K content in the soil on its leaf content, production and must composition of 'Cabernet Sauvignon' cultivar. In September 2011, in Santana do Livramento (RS) five vineyards with increasing levels of exchangeable K in the soil were selected. In the 2012/13 and 2013/14 harvests, the grape yield, yield components, total K content in the leaves in full bloom and berries veraison were evaluated. Values of total soluble sugar (TSS), pH, total titratable acidity (TTA), total polyphenols and anthocyanins were evaluated in the must. Exchangeable K content... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Foliar analysis; Grape production; Quality of the grape; Vitis vinifera.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801376 |
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