Avaliação de doses de fertilizante foliar para a cultura do arroz de terras altas

Abstract

This work aimed to evaluate the vegetative development and productivity of upland rice - cultivate BRS Sertaneja - foliar fertilization composed of the micronutrients molybdenum and zinc, combined with two fertilizer sources and four doses of each (0, 0.5, 1.0 and 1.5 L / ha). The experiment was conducted in a greenhouse using pots with a capacity of 3 dm³ of soil, with the dystrophic RedYellow Latosol with a sandy-loam texture being the soil used. The experiment was developed from November 2017 to February 2018, the design used was completely randomized in a 2x4 factorial scheme, with five replications. Vegetative and reproductive characteristics were evaluated, such as: dry shoot weight, relative chlorophyll content, number of tillers, nitrate reductase, urease, porometer and fluorometer. Rice proved to be responsive at a dose of 1.5 L / ha for the parameters of shoot dry mass, relative chlorophyll content and stomatal conductance index. The product that showed the best performance was product 2.