Carneiro, Marcio AlvesNascimento Lima, Augusto MiguelLucena Cavalcante, Italo HerbertMelo de Sousa, Karla dos SantosAlencar Oldoni, Fernando Campos [UNESP]Barbosa, Karine da Silva2019-10-032019-10-032018-01-01Revista Brasileira De Fruticultura. Jaboticabal Sp: Soc Brasileira Fruticultura, v. 40, n. 5, 9 p., 2018.0100-2945http://hdl.handle.net/11449/184071Correct management of potassium (K) fertilization is of fundamental importance for mango orchards, and K is one of the most exported and yield-limiting nutrients. Thus, an experiment was carried out to evaluate the production and physical-chemical characteristics of Tommy Atkins mango fruits under fertigation with different doses of potassium chloride and potassium sulfate in the semi-arid region. The experimental design was randomized blocks in split plots, using five K doses (50, 75, 100, 125 and 150% of the recommended dose) in the plots and two sources of K (potassium chloride - KCl and potassium sulfate - K2SO4) in the subplots, with four replicates. The following characteristics were evaluated: transverse and longitudinal diameters, skin thickness, fruit weight, production per plant, pulp percentage, hydrogen potential (pH), soluble solid (SS), ascorbic acid (VIT C), titratable acidity (TA) and SS/ TA ratio. The doses and sources of K applied through fertigation caused significant effect on fruit physical-chemical characteristics and production per plant in Tommy Atkins mango, particularly at the dose of 349 g plant(-1) of K2SO4, which led to higher production per plant and guaranteed the minimum quality required for fruit physical-chemical characteristics.9engMangifera indica L.soil fertilityphysical-chemical characteristicsArtigo10.1590/0100-29452018034S0100-29452018000503002WOS:000448839400001Acesso abertoS0100-29452018000503002.pdf