Abstract Flotation sludge (FS) is produced in huge amounts at slaughterhouses in western Santa Catarina, Brazil. This waste is rich in plant nutrients and a valuable resource for soil amendments. Five FS composts were tested as a replacement for chemical fertilizers (QF), namely T1 (75% poultry manure (PM) and 25% sawdust (SD)); T2 (50% PM and 50% SD); T3 (25% PM and 75% SD); T4 (100% PM and 0% SD); and T5 (0% PM x 100% SD). For lettuce plants, treatments containing composted FS resulted in an increased number of leaves, leaf area and leaf fresh weight (LFW). T1 presented the best results with increases of 1.4 fold in LFW compared to plants supplemented with QF. T2 was the most effective treatment for radish with the best results of root fresh weight and root diameter. Although T4 had the highest nitrogen content, it did not present the best results in growth performance for lettuce or radish. The presence of higher proportions of SD in composts (25% for lettuce and 50% for radish) improved the physical characteristics of the soil and proved to be a more balanced compost.

Tabelas de vida e de fertilidade de Pattonella intermutans (Thomson, 1869) foram estudadas em condições de laboratório. As colônias foram observadas diariamente e mantidas a 20-28°C e 80±10% RH. A expectativa de vida foi de 2,34 semanas para machos e de 2,33 semanas para as fêmeas. As curvas de sobrevivência tenderam para o tipo II, nas fêmeas e do tipo III, nos machos. Os períodos de pré-larviposição e larviposição foram de 2,5 e de 9,5 semanas, respectivamente. Utilizando os dados da tabela de fertilidade, foram obtidos os seguintes valores: Ro= 24,83; T=5.06 semanas; r=0,64 e lambda= 1,89. O número de gerações de P. intermutans foi estimado em 10,28 gerações por ano. Nas condições de laboratório empregadas, as fêmeas tiveram alta fertilidade.

Life and fertility tables of Pattonella intermutans (Thomson, 1869) were studied in the laboratory conditions. The flies colonies were maintained at 20-28°C, 80±10% RH and observed daily. Life expectancy was 2.34 weeks for males and 2.33 weeks for females. The survivorship curves presented a type II tendency for females and type III for males. The periods of pre-larviposition and larviposition were of 2.5 and 9.5 weeks, respectively. Using data of the life table of fertility, the following values were obtained: Ro=24.83 times; T= 5.06 weeks; r=0.64 and lambda=1.89. The number of generations of P. intermutans was estimated to be 10.28 generations/year. The females had a high fertility under laboratory contiditions.