Aplicação foliar de fertilizantes e estimulantes hormonais em diferentes estádios fenológicos nos componentes de redimento do milho

Abstract

Corn (Zea mays L.) is an important crop for the Brazilian economy, being extensively used in human and animal nutrition, and can also be used as an input in the manufacture of dozens of products. Agronomically, corn is very demanding regarding fertilization, responding positively to the use of fertilizers and adequate nutritional levels, with the practice of foliar fertilization being widely used in the crop, seeking high yields and productivity. Therefore, the objective of this study was to carry out an experiment in relation to the use of hormones and foliar fertilization in corn crops, aiming to increase yield and productivity. The experiment was implemented in Chã do Jardim, located in Areia, state of Paraíba, using a randomized block design (DBC) with five treatments and four replications. Four treatments were used consisting of mixtures of different types of biostimulants at two times of application of the products (V4 and V9) and a control treatment. Ear length, ear diameter, number of rows per ear, number of grains per ear, ear weight, weight of a thousand grains and corn productivity were evaluated. The treatments did not influence the yield and productivity components of the corn crop when compared to the control, showing that there was no influence on the genotype used. T4 positively influenced higher values of number of grains per row.