Application of nitrogen and potassium in mango Mangifera indica L.
Sergent E., Casanova E., Leal F.
Author Affiliation: Universidad Central de Venezuela, Apdo. 5081, Aragua, Venezuela.
Agronomía Tropical (Maracay) 45 : 293-311
Abstract : In 4-year trials initiated with 6-year-old trees of the cultivar Haden, applications were made of N at 0, 600, 1200 or 1800 g/tree, K at 0, 600, 1200 or 1800 g/tree and basal P at 600 g/tree, in 7 different combinations. There were no significant effects of N and K treatments on yield. In terms of K application rate, it was concluded that the rates in this study were suboptimal. Fruit number/tree was greatest when K and N were both applied at the highest rates, but tended to decrease with increasing K application rate in the absence of N application. Yields differed considerably between years (attributed to the irregular bearing phenomenon).