Use of micronutrients as a nutritional supplement at sowing and post emergence in grain sorghum [Sorghum bicolor (L.) Moench

Abstract

The cultivation of sorghum for grain production has been revalued by virtue of a growing demand, added to the security of production under adverse climatic conditions, adaptability to soils of low aptitude and moderate to low implantation costs. There is a notable deficiency of technical information and adaptive experimentation in relation to dose and response levels of said crop with respect to different nutrients. Although the macronutrients, nitrogen (N), phosphorus (P) and potassium (K), are among the most important nutrients for vegetables, the use of micronutrients could be a strategy to achieve a greater absorption of macronutrients by plants. floors. The objective of the present work was to evaluate the effect of different commercial products with micronutrients and their combinations in different stages of the sorghum crop and its response in grain yield. The same graniferous hybrid was evaluated in two locations, including one seed treatment and two foliar application. No significant environment × treatment interactions were detected. A trend towards higher grain yields, although not significant, was observed, highlighting the Top Seed, Abortec Cooper and Top Zinc Max treatments. The results obtained indicated an auspicious trend in relation to grain yield performance, but it must be confirmed in future evaluations.