Abstract
This study aimed to evaluate the effect of foliar fertilization on RR corn after different forms of glyphosate application or associated with another herbicide. The experimental design was a randomized block with 12 treatments and 4 repetitions, being deployed in 3x4 factorial arrangements (three herbicide managements and four foliar fertilization doses). The times and herbicide combinations were established by a glyphosate application (1440 g a. e. ha-1), two glyphosate applications and the second 14 days (1440 + 1440 g a. e. ha-1) and atrazine + glyphosate (1440 g a. e. ha-1 + 1500 g a. i. ha1). Foliar fertilization was done 7 days after herbicide application using doses of 0; 0.5; 1 and 1.5 L ha-1 of a multinutrient liquid fertilizer. The evaluated parameters were stem diameter, green color index, plant height and insertion of the main spike, 100-grain mass, productivity, and leaf nutrient content. Was observed a reduction in the Fe concentration with two foliar applications of glyphosate. The foliar fertilizer use had no effect on the agronomic and nutritional traits.
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