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| Rosa,Jadir Aparecido; Smajstrla,Allen George; Campbell,Kenneth Leonard; Locascio,Salvadore Jose. |
| The objective of this work was to evaluate the water flow computer model, WATABLE, using experimental field observations on water table management plots from a site located near Hastings, FL, USA. The experimental field had scale drainage systems with provisions for subirrigation with buried microirrigation and conventional seepage irrigation systems. Potato (Solanum tuberosum L.) growing seasons from years 1996 and 1997 were used to simulate the hydrology of the area. Water table levels, precipitation, irrigation and runoff volumes were continuously monitored. The model simulated the water movement from a buried microirrigation line source and the response of the water table to irrigation, precipitation, evapotranspiration, and deep percolation. The model... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Drainage; Irrigation methods. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002001200010 |
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| Gonçalves,Daniele; Leite,Wellington Claiton; Brinatti,André Maurício; Saab,Sérgio da Costa; Iarosz,Kelly Cristiane; Mascarenhas,Yvone Primerano; Carneiro,Paulo Irajara Borba; Rosa,Jadir Aparecido. |
| Atualmente, procuram-se sistemas de manejo que preservem ou melhorem as qualidades do solo, tanto mineralógicas como orgânicas, priorizando maior produtividade. Este trabalho teve como objetivo verificar qualitativamente, por meio das técnicas de fluorescência de raios X, difração de raios X e infravermelho com transformada de Fourier, os efeitos provocados pela utilização dos manejos: plantio convencional, preparo mínimo e plantio direto, por 24 anos, na mineralogia de um Latossolo Vermelho distrófico de Ponta Grossa, PR. Não foram observadas mudanças significativas na mineralogia do Latossolo estudado, por meio das técnicas utilizadas, quanto aos diferentes manejos durante os anos de sua aplicação. Pôde-se verificar, qualitativamente, a presença dos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plantio convencional; Preparo mínimo; Plantio direto; Mineralogia. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832008000700006 |
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| Giarola,Neyde Fabíola Balarezo; Silva,Alvaro Pires da; Tormena,Cássio Antônio; Ball,Bruce; Rosa,Jadir Aparecido. |
| Methods for evaluation the soil structure quality based on field evaluations are useful to determine strategies for soil management, with the advantage of requirement the use of little equipment and the possibility of immediate interpretation. A new methodology was recently developed to temperate soils for this purpose, called Visual Soil Structure Assessment (Ball et al., 2007). It was tested the hypothesis that it is possible to apply and advance in the interpretation of the results from use of Visual Soils Structure Assessment in cultivated Oxisols. Therefore the goal of this study was to apply, evaluate and enhance the potential of the methodology developed by Ball et al. (2007) in two Oxisols under long-term, no-till in Parana State, Brazil, as well... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Soil physical quality; Soil morphological analysis; Soil conservation management. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000400016 |
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