Efeito do ensacamento na qualidade do fruto do tomate sob manejo orgânico e convencional

Abstract

Two experiments were conducted on two farms located in the city of Nova Friburgo - RJ, Cultivar and Hikari. On Cultivar farm, tomato was cultivated under organic management in a 4 x 2 factorial design experiment - with four types of bagging and two types of ground coverages - in four replications. Besides the referential treatment, which was conducted bagless, brown paper, nonwoven fabric and glassyne were tested over the period of August to December 2012. The tomato was grown under straw black oats and lupins. On Hikari farm, which was in an agroecological transition, we performed the second experiment, conducted in two different greenhouses, one under chemical management and other under biological management, both performed over the period of October 2012 to March 2013. The experiment was conducted in a 2 x 2 completely randomized experimental design (glassyne paper, without bagging and with both types of pest control, chemist and biological) with eight repetitions. In both experiments Tomatec principles were adopted using mulching, drip irrigation, vertically trellised staking, organic fertilization and integrated pest management (IPM). The evaluated parameters were bagging fresh weight influence, diameter, amount of residues and fruit production. The farmers and the student’s approach over tomato production with agroecological transition bias allowed us to understand the sustainable production challenges on protected areas and provided a great experience on procedures, empowerment and professional knowledge. Bagging increased tomato yield under organic production, and the brown paper bags made the most of outstanding quality and production. Compared to the bagless process, economic gains were present in treatments with biological and chemical management using glassyne.