APLICAÇÃO DE FERTILIZANTE FOLIAR MANNI-PLEX® B-MOLY EM CAMPO DE PRODUÇÃO DE SEMENTES DE MILHO HÍBRIDO

Abstract

Considering the importance of culture in agribusiness, seed producing companies have been looking for new technologies to improve seed quality and production. In this scenario, the adequate nutrition of plants has stood out, mainly regarding the micronutrients supply. Boron has low mobility by phloem, its deficiency can affect the fertilization process, reducing productivity and seed quality. In this regard, the aim was to evaluate the response of corn seeds strains for hybrids H1 (areas 1 and 3), and H2 (areas 2 and 4) production, to the application of foliar fertilizer with the Brandt® Manni-Plex® B-Moly technology, as well as the financial viability of using this product. The work was carried out in 4 commercial seed production areas of Limagrain® Brazil Business Corporation, located in the North Center of Goiás (State of Brazil). The hybrid H1 (areas 1 and 3) and hybrid H2 (areas 2 and 4) were tested, with the application of Manni-Plex® B-Moly in the dosage of 1.5 liters per hectare, in stages V7 and VT. As a control, it was used the company's standard treatment (3 applications of 0.5 kilograms per hectare of foliar fertilizer with boron in the stages of V4, V10 and VT). The treatments were implanted in bands, considering a completely randomized design, with four replications. For the weight of 1000 seeds, number of seeds per ear and finished product (60,000 seeds per hectare), the use of the Manni-Plex® B-Moly foliar fertilizer, when compared to the standard treatment, provided average increments of 3.5; 20.5 and 20.4% in H1, and 3.3; 10.0 and 10.0% in H2. The improvement in these production parameters resulted in an average increase of 8.6% in the profitability rate in H1 and 2.0% in H2, indicating that the Manni-Plex® B-Moly technology is efficient in improving the productions components and consequently the financial viability guaranteeing better cost benefit for the culture.