USE OF STIMULATING AND FOLIAR FERTILIZERS IN CORN CROP

Abstract

Corn (Zea mays L.), is one of the most important crops in Brazil, being the main cultivated cereal. The search for increased productivity in cultivation is a factor that is being increasingly demanded by producers and the grain market. The corn crop is one of the most demanding in fertilization, but it responds well to the application of fertilizers, nutritional levels of quality increase the final grain production. Given the need to increase productivity, the work aims to evaluate the application of biostimulant compared to the application of leaf fertilizer, thus evaluating the development of the plant and the weight of the grains after harvest. The experiment was conducted in the city of Cardoso / SP, where the P3397 PWU (Pioneer Seeds) corn was sown, and the treatments were applied: T0 - Witness (without application), T1 - application of Stimulate® synthetic hormone, at dose of 1 L / ha and T2 - application of leaf fertilizer Exion Force®, in the dose of 1 L / ha. The parameters plant height, ear length, weight of ten ears, grain moisture and total grain weight were evaluated. A completely randomized 3x5 design (treatments x repetition) was used. The treatments T0, T1 and T2 did not present significant differences in relation to the length of the ears. There was a statistical difference between the other treatments, with T1 being the treatment that yielded the most weight combined with low grain moisture and plant height. Therefore, the use of the biostimulant has an influence on the development of the corn crop, providing higher yields.