Efeito residual do lodo de esgoto na cultura de cenoura (Daucus carota L.) : aspectos socioeconômicos e de fertilidade

Abstract

The influence of sewage sludge in the attributes of fertility in soil grown in tropical regions, yet little is known. In order to collaborate with research in this área will be conducted a field experiment in the Community Families United, located in the municipality of Camaragibe, Pernambuco, to be evaluated the residual effect of sewage sludge in the cultures of carrot and pepper, after planting of radish. The purpose of the search is also check which socio-economic benefits may be offered by the experience of the use of sewage sludge on crops chosen. The experiment will continue with the design of blocks, with five treatments (zero, 25, 50 and 75 Mg ha1 of sewage sludge and 25 Mg ha"1 of sewage sludge with the Red vermicompostado of Califórnia. Wastes from ETE/TIP-Curado, Recife / PE) and three repetitions. The plots of masonry measuring 1 m wide and 6 m long and 0.20 m deep, with 21 rows spaced between rows of 0.35 m and 0.15 m between plants, being considered in the ratings central plants, with 2 m2 of floor área. The planting of carrot will be accomplished through direct seeding, and the pepper by transplanting. Will be made the cultural Standard treatment for the crops. Harvesting is carried out according to length of each culture, making useful sampling in the área required for the flowerbeds, on 10 points equidistant. At the end of the harvest you will be sampling the soil, collecting up sub-samples in a zigzag to create a composite sample garden, for chemical analysis. Through statistical analysis of the results só far, we find that the dose equal to 25 Mg ha"1 of sewage sludge is showing more promising results for agriculture.