Conhecimento da popula\ue7\ue3o sobre produto org\ue2nico na regi\ue3o litor\ue2nea do Paran\ue1 [Knowledge of the population on organic produce in the coastal region of Paran\ue1]

Coastal region of Paran\ue1 state has been characterized by sustainable agricultural systems and also by requiring activities that reduce poverty in the countryside. Organic production systems fit properly for this context and it follows that is necessary to stimulate local trading of their products. In order to estimate local population knowledge regarding organic product, a questionnaire was applied in each municipality. It was found that 60% know what means organic product and 49,5% have already consumed. In Paranagu\ue1, which has 53% of the regional population, most people don\u2019t know and neither had already consumed organic products. In the region 48,2% don\u2019t know how to identify an organic product and, it was appointed the "certification logo" as the main way to do that (19,1%), followed by "trusting the producer/trader" option (12,7%). Most think the main advantage of organic products is because they are "healthy and nutritive", followed by the "no chemicals" and "preserving the environment". Organic lettuce and tomato were identified as the most consumed in the region. It\u2019s suggested that Paranagu\ue1 is prioritized for activities that enhance organic product

Características químicas de solo cultivado com soja e irrigado com água residuária da suinocultura Chemical characteristics of the soil cultivated with soybean and irrigated with swine wastewater

Neste trabalho se avaliou a distribuição "in situ" de fósforo (P), matéria orgânica (MO), potássio (K), cálcio (Ca), magnésio (Mg), capacidade de troca catiônica (T), alumínio (Al), soma de bases (S), saturação por bases (V) e do pH, em um solo cultivado com soja irrigada com água residuária proveniente da suinocultura (ARS), com níveis de concentração de 0, 25, 50 e 75%. Constituiu-se um esquema fatorial a partir dos quatros níveis de concentração da ARS, das profundidades de 20, 40 e 60 cm com cinco repetições. Os resultados encontrados demonstraram diferenças significativas apenas para P, K e T no perfil do solo. Para todas as características na profundidade de 60 cm, os respectivos níveis de concentração estiveram bastante próximos aos níveis iniciais, ou seja, antes da aplicação dos tratamentos.<br>In this work the distribution was evaluated "in situ" of phosphorus (P), organic matter (MO), potassium (K), calcium (Ca), magnesium (Mg), cation exchange capacity (CEC), aluminum (Al), sum of bases (S), base saturation (V) and pH of a soil cultivated with soybean and irrigated with swine wastewater in the 0, 25, 50 and 75% levels. The factorial scheme was constituted by the 20, 40 and 60 cm soil depths and four wastewater levels with five repetitions. The results showed that significant difference occurred only for P, K and CEC in the soil profile. However, in all parameters, the 60 cm soil depth showed that the concentrations levels are similar to before the aplication of treatments