Resposta do milho ao uso de fitorreguladores, S e Zn

Abstract

Corn is essential in northeastern culture, it participates directly in the income of family farmers in the rainy season. The maintenance of Northeastern farming depends in large part on family farming, so it is necessary to adopt plant nutrition techniques and new technologies in order to achieve high productivity. Thus, the objective of this experiment was to evaluate the potential for growth and productivity of maize under the effect of phytoregulators, zinc and sulfur in a Gleissol Haplic. The experiment was carried out in a randomized complete block design, factorial 2x2x2 with eight treatments and four replicates; T4: Zinc + Sulfur, T5: Phytorregulator + Zinc, T6: Phytorregulator + Sulfur, T7: Titer: Titer: Phytorregulator + Zinc, T6: Phytorregulator + Tinctorium, : Fitorregulador + Zinco + Sulfur and T8: Absolute Witness. The statistical analysis of variance analysis (ANOVa) and Tukey's test by the program R. The phytotechnical analyzes evaluated were ear height, leaf length, leaf width, leaf area, chlorophyll A, B and total, plant height, diameter of the stem at the time of the second internode, number of leaves in the plant, length of the spike, width of the spike, number of rows in the spike, number of grains per row, number of grains per spike, weight of straw, cob, grain and productivity. The application of sulfur provided the growth of the plants and increased yield of corn grains.