Bromatological characterization and contamination by deoxynivalenol-DON of wheat cultivated under nitrogen management strategies

Chemical composition and contamination of wheat kernels ( Triticum aestivum L.) directly affect the quality of the flour obtained from them, determining its acceptability and use by industry. Field trials were conducted to evaluate the effect of agricultural practices on wheat kernel quality. Cultivation of wheat was carried out following maize or soybean cultivation (crop succession), with application of nitrogen doses in topdressing (0, 30, 60, 90, and 120 kg ha -1 ), using seeds inoculated or not inoculated with Azospirillum brasilense. The parameters evaluated consisted of chemical composition (protein, lipid, ash, starch, and total carbohydrate) and natural occurrence of contamination by deoxynivalenol-DON. Data were subjected to analysis of variance (ANOVA), comparison of means by Tukey’s test (