Doses de biofertilizante bovino na cultura da abobrinha

Abstract

The concern for the consumption of healthier foods, it is causing agriculture, in general, to develop production systems that minimize the use of chemicals and cause possible damage to the environment. In addition, a search for self-sufficiency in agriculture has shown the importance of reusing waste from rural properties, since it ends up promoting a reduction in the cost of production. Therefore, the objective of this work was to evaluate the effect of different doses of bovine biofertilizer and mineral fertilizer on the development and productivity of zucchini. The experiment was conducted in the experimental area of the Meteorological Station of the Federal University of Ceará. The planting of the seeds took place in pots with a capacity of 18 liters. A completely randomized design was applied, with seven replications and six treatments, with four doses of bovine biofertilizer (T1 = 1000; T2 = 750; T3 = 500; T4 = 250 mL plant-¹ week-¹) and two additional treatments (T5 = conventional fertilization) and T6 = 0 mL of biofertilizer (control). Growth variables were analyzed (plant height, stem diameter, number of leaves and leaf area), biomass variables (leaf dry matter, stem and root) physiological variables (photosynthesis, stomatal conductance and transpiration) and variables of (length, fruit diameter, pulp thickness and soluble solids content. In most growth and physiological variables such as doses of 1000 and 750 mL of biofertilizer made possible the highest or similar results in relation to mineral fertilization, as doses of 1000 and 750 mL of bovine biofertilizer replaces mineral fertilizer for the production of dry matter from the aerial part, stem and root, the highest productivity was obtained with the dose of 750 mL of bovine biofertilizer.