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Alteração de atributos químicos no solo de rampas utilizadas no tratamento de águas residuárias
| Content Provider | Semantic Scholar |
|---|---|
| Author | Matos, Antonio Teixeira De Pinto, Andressa Bacchetti Pereira, Odilon Gomes Barros, Flávia |
| Copyright Year | 2005 |
| Abstract | The treatment of wastewater, rich in organic material through the direct disposal on soil is a viable alternative due to small implantation costs and the possibility of use of nutrients contained in those waters. In this work, the effect of the application of wastewater from washing and pulping coffee fruits (ARC) on the chemical attributes of a soil cultivated with three forage species (ryegrass, oat and millet) was appraised. ARC was applied in plots of 6 m2 and with slope of 5%. A mean rate equivalent to 250 kg ha-1 dia-1 of DBO5 of the ARC was applied. The applied nutrients in the soil through ARC, except the potassium, were not enough to provide accumulation in the soil surface layer, which on the contrary, presented reduction in the concentrations of available P, exchangeable Ca and Mg. In the plots that received ARC, the largest concentrations of nitrate were observed in the soil surface layer (0 to 0.10 m), independently of the cultivated vegetable species. Smaller concentrations in subsurface layer (0.30-0.50 m) were found in the portions cultivated with millet and ryegrass when fertirrigated with ARC. |
| Starting Page | 406 |
| Ending Page | 412 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1590/S1415-43662005000300017 |
| Volume Number | 9 |
| Alternate Webpage(s) | http://www.scielo.br/pdf/rbeaa/v9n3/v9n3a17.pdf |
| Alternate Webpage(s) | https://doi.org/10.1590/S1415-43662005000300017 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
