Produtividade e qualidade de grãos de trigo (Triticum aestivum l.) submetido a diferentes doses de enxofre elementar (sº)

Abstract

Considered a secondary macro nutrient, sulfur (S) together with the nitrogen, phosphorus and potassium occupy a prominent place in the development of plants. With continued use of land for agriculture has been a decrease in element levels in the soil. For the cultivation of wheat, as well as yield, suitable sulfur levels also influence final product quality. In this way we tried to determine productivity, weight hectolitre of grain and wheat production of components with supply of sulfur (S) via soil and foliar. The study was conducted in the municipality of Laranjeiras do Sul - PR. The soil of the site showed the level of sulfur (S) 1.9 mg dm ³. The work consisted of two simultaneous experiments, and the experiment A with 5 treatments with doses of elemental sulfur in the soil with 5 repetitions, and the doses were 0 (control), 10, 20, 40 and 80 kg ha-1 S, manually applied to the soil at planting. The B experiment consisted of the application of 5 doses of elemental sulfur foliar tillering period with 5 repetitions each, and the doses were 0 (control), 2, 4, 8 and 10 kg ha-1 S. Before harvest took place analysis component plant height and number of ears per plant, and, after the harvest took place the test weight analysis, productivity, ear length, number of grains per spike and weight of 100 grains. Data were statistically analyzed applying the F test at 5% level of significance. The results failed to show significant differences between treatments in relation to witnesses in productivity, hectolitre weight and wheat crop yield components, both for the experiment with sulfur applied to the soil as applied foliar.