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| Tortella,G.R; Rubilar,O; Cea,M; Wulff,C; Martínez,O; Diez,M.C. |
| Degradation of the insecticide chlorpynfos (160 a.i mg kg-1) using a biomix of a biobed system biostimulated with inorganic fertilizer (NPK) was investigated. Three concentrations of the fertilizer (0.1%, 0.5% and 1.0% ww-1) were evaluated on chlorpynfos degradation, TCP (3, 5, 6-trichloro-2-pyrinidol) accumulation and biological activity of the biomix. The chlorpynfos was dissipated efficiently (>75%) after 40 days of incubation and no additional dissipation was obtained with increasing concentration of NPK after 20 days of incubation. TCP accumulation occuned in all evaluated NPK concentrations and its concentration increased with the increment of NPK addition raising the probability of leaching of this compound. Biological activity (FDA and... |
| Tipo: Journal article |
Palavras-chave: Chlorpyrifos; Bio stimulation; NPK fertilizer; Biobed; Andisol. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000200007 |
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| Oliveira, Kathia Szeuczuk de; Mendes, Marcelo Cruz; Ilibrante, Gustavo Arruda; Antoniazzi, Noemir; Stadler, Alan Junior; Antoniazzi, Ana Paula. |
| The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the following sowing fertilization (kg ha-1): 0, 100 NPK, 100 NPK+HS, 250 NPK, 250 NPK+HS and two cultivars, BRS Brau and BRS Elis. The dose of 250 kg NPK with humic substance increased the nitrogen export to barley grains, with the highest levels occurring in the BRS Brau cultivar under favorable climatic conditions. Under favorable climatic conditions, the export of phosphorus to barley grains in the agricultural... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hordeum vulgare; NPK fertilizer; Nitrogen; Phosphorus; Potassium.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42690 |
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| Oliveira, Kathia Szeuczuk de; Mendes, Marcelo Cruz; Ilibrante, Gustavo Arruda; Antoniazzi, Noemir; Stadler, Alan Junior; Antoniazzi, Ana Paula. |
| The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the following sowing fertilization (kg ha-1): 0, 100 NPK, 100 NPK+HS, 250 NPK, 250 NPK+HS and two cultivars, BRS Brau and BRS Elis. The dose of 250 kg NPK with humic substance increased the nitrogen export to barley grains, with the highest levels occurring in the BRS Brau cultivar under favorable climatic conditions. Under favorable climatic conditions, the export of phosphorus to barley grains in the agricultural... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hordeum vulgare; NPK fertilizer; Nitrogen; Phosphorus; Potassium.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42690 |
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