FOLIAR NUTRITION AND THE INDUCTION OF RESISTANCE OF SOYBEAN PLANTS TO DISEASES

• DOI: 10.22533/at.ed.9733112319075

• Palavras-chave: Glycine max, leaf nutrition, yield of grains.

• Keywords: Glycine max, leaf nutrition, yield of grains.

• Abstract:

  Foliar nutrition, due to its possibility to make the plants more resistant, constitutes an interesting alternative for the efficiency of the chemical applications in the control of diseases in the soybean crop. The present study aimed to analyze the use of foliar nutrition in a soybean cultivar in the climate and soil conditions of the municipality of Pejuçara, RS, in the 2016/2017 harvest. For that, a quantitative approach was used, statistical procedure, being the collected data by direct observation and measurement of grain yield components for later treatment using means and Tukey test at the 5% level of error probability. The rainfall volume during the crop cycle (940 mm) was excellent. In terms of severity of attack of foliar diseases, the emphasis was on treatment 4 (Trifloxystrobin, 150 g L-1 + Prothioconazole, 175 g L-1), without, however, differentiating statistically at the 5% probability level of Error of the other treatments studied, fact also observed for grain yield variable. The result of the test in the soil and climate conditions in which the present research was developed showed no difference in the use of leaf nutrition to induce plant resistance.