Atributos bioquímicos de frutos do mamoeiro do grupo formosa em resposta aos insumos cinza vegetal e cobertura morta na agricultura familiar de base agroecológica

Abstract

The research was conducted in an area of family farmer, municipality of Pentecoste, Ceará, started in January 2014 and was until May 2015. The objective of the research was to analyze the qualitative characters total soluble solids, pH, total acidity titratable and SST(° Brix)/Acidity papaya fruits of a Formosa group in a trial unit subjected to the factors of production plant gray and mulch. A unit in a randomized trial in random blocks with subdivided plots, consisting of four treatments, primers(doses of gray), two secondary(with and without mulch) and four blocks. The primary treatments were the following doses of vegetal gray: 50, 100 and 150% of the recommended amount of production factor, plus a treatment witness (without application of input). The treatment has been constituted by the use of mulch but based on reason of bagana de carnauba a reason of 16tha-1 and a treatment witness (no mulch). The application of water culture came about by an irrigation system in microsprinklers type with irrigation strategy without deficit. The results allowed the following conclusions: The fruits of papaya Formosa group showed average values associated with qualitative variables total soluble solids (TSS), total titratable acidity (ATT), pH and relation TSS/ATT to impart qualities within the standards for domestic marketing. In addition, onformal information obtained between consumers of this product, are too positive about the aspect of quality of the fruit, which has somehow contributed to the farmer market your product for an attractive price ($ 2.00 kg-1). The degree of sweetness of fruit of the papaya tree measured through SST/ATT give average values, if considered all treatments (primary and secondary) that are twice the average value of reference to fruits of Formosa group. The non-significance of primary and secondary treatments related to variables papaya fruit quality analyzed in this research has a highly significant character from the point of view of financial resource allocation of the ratio factor product. The analyses related to the application of the production factor vegetable ash cannot be considered absolutely determinants because of problems associated with the application of this input during the experiment. A balance of nutrients required and made available, especially nitrogen, points to the need for an adjustment in the production system as a way to maximize other qualitative variables of interest.