Efeito de resíduos de poda de pata de vaca (BAUHINIAFORFICATA) sobre germinação e crescimento do alface

Abstract

Currently pruning remains are disposed of in landfills, generating a large volume of organic waste, which could be utilized as fertilizer and making recycling of organic matter and increasing it in the soil. However, the study of a possible allelopathic effect of these urban prunings debris on the crops is necessary, which can be a negative or a positive effect. Aiming to discover if there is effect and thus be able to recommend this alternative to urban pruning debris, it was necessary to evaluate its effect on an indicator plant. We evaluated the effect of Bauhinia forficata on Lactuca sativa (lettuce). As the method adopted germination tests were performed in gerbox boxes in concentrations of 0% (control) 25%, 50%, 75% and 100% of crude aqueous extract to 20%. The effect on seedlings was evaluated by the lettuce seedlings growing on commercial substrate and use of Bauhinia forficata triturated and dried to evaluate the seedling behavior also in those concentrations of Bauhinia forficata. Data were subjected to statistical tests using the SASM Agri software and regressions adjusted by Microsoft Excel. The results showed that there is interference on the germination, growth and development of lettuce in the treatments that used Bauhinia forficata. Thus, become necessary studies to identify a possible treatment of the material generated by the urban pruning before being used in agriculture, preventing further contamination and preventing that this use affects the plants, in order to identify an adequate and sustainable destination to seize the debris generated by urban pruning.