| leaching and degradation of corn and soybean pesticides in an oxisol of the brazilian cerrados. | pesticide pollution of ground and surface water is of growing concern in tropical countries. the objective of this pilot study was to evaluate the leaching potential of eight pesticides in a brazilian oxisol. in a field experiment near cuiabá, mato grosso, atrazine, chlorpyrifos, lambda-cyhalothrin, endosulfane alpha, metolachlor, monocrotofos, simazine, and trifluraline were applied onto a typic haplustox. dissipation in the topsoil, mobility within the soil profile and leaching of pesticides w ... | 2000 | 11057581 |
| the natural occurrence of fumonisins in brazilian corn kernels. | since animal intoxication related to corn-based feed is frequently observed in the state of paraná, brazil, natural contamination by fumonisins in 48 corn samples (39 from the state of paraná, and 9 from the brazilian tropical states, mato grosso do sul and goias) harvested in 1990-1991 was investigated, along with fungal flora. the total mould count ranged from 6.3 x 10(2) to 5.5 x 10(7) cfu/g, and fusarium moniliforme and aspergillus species belonging to section flavi were detected in 41 and 3 ... | 1996 | 9064243 |