Influence of Potassium Installment (K) on Melon Features Using System Tutoring in Sinop-Mt

Abstract

Potassium is an extremely important nutrient for the production of melon. To produce with quality is a necessity in today's market. The aim of this study was to evaluate the differences in productivity, length, diameter and oBrix content and acidity due to the fragmentation of fertilization. The research was developed in the city of Sinop-MT, in 2010. In the experience, randomized blocks (RBD) with 2 treatments (DBC) and 11 plots, totaling 22 repetitions, were used. Treatment (T1) consisted of the application of the total recommendation of potassium at planting (240 kg ha-¹). In treatment two (T2), 20% of the recommendation were applied at sowing, 20%, 30 days after sowing (DAS), 40%, 45 DAS and 20%, 60 DAS. Each plot consisted of 8 melon plants. 8 melons were harvested by repetition when they reached the point of physiological maturity. Productivity (kg-1), length and diameter (cm-1), sugar content and acidity were the parameters for evaluation. Data were subjected to analysis of variance and the obtained means were compared by Tukey test with p <(0.05). The analysis of variance showed significant results for treatment. Regarding the means, T1 was lower when compared to T2 °Brix values of 8.775 and 10.15 respectively differing among themselves. The same was true for the acidity, (T1 8,6 and T2 11.1). As for productivity, length and diameter there was no statistical difference. The results showed that potassium fertilizer management is important for obtaining high-quality melons.