Produção de frutos de maracujazeiro amarelo sob diferentes doses de NPK.

Abstract

The passion fruit culture is widely distributed throughout the national territory gaining great prominence in the fruit market. Mineral nutrition plays a very important role in the economic growth of this crop, balanced fertilization provides adequate conditions for its development, reducing input costs and increasing plant quality and production. Thus, this work aimed to seek a balanced fertilization that maintained the quality standards required by the market. The experiment was conducted in randomized blocks with five treatments and five repetitions, in which the treatments were increasing doses of NPK, in the proportions of 0%, 20%, 40%, 60% and 80%. With fertilizer sources: Nitrogen Urea (45% N), Phosphorus Simple Superphosphate (18% P) and Potassium Chloride Potassium (60% K). The following chemical parameters were evaluated: pH, total titratable acidity, total soluble solids and SST / ATT ratio; In the physical parameters were analyzed: Fruit mass, number of fruits per treatment and yield in Kg/ha. The fertilization with 60% dose was more efficient compared to the others, in which there was an increase of productivity around 1,7t / ha and maintained the quality parameters accepted by the market, spending on average 236,832 kg/ha of Urea, 125,476 kg/ha of single superphosphate and 125,476 kg/ha of potassium chloride.