Efeito agronômico de fertilizantes foliares na cultura da soja

Abstract

Soybean (Glycine max (L.) Merrill) is prominent in the brazilian agribusiness market as the commodity most cultivated and commercialized in all national and international territory. However, the crop has been affected more and more by the attack of diseases, which significantly reduce the productivity of the crop and the reach of the productive ceiling of the species. In this sense, the objective of this work was to evaluate the effect of foliar fertilizers based on phosphite on the health and productivity of the soybean crop. The work was conducted in the City of Quedas do Iguaçu / PR, in the community of Planalto, and the experimental design was a randomized block design with twelve treatments and four replications, totaling 48 experimental units. Treatments were composed by the use of two fungicides: Picoxystrobin + Ciproconazole (Aproach [marca registrada] Prima) and Azoxystrobin + enzovindiflupir (Elatus [marca registrada]) and five foliar fertilizers: Ultra Mn10 [marca registrada], Ultrazeb [marca registrada], Ultrazeb Premium [marca registrada], Cubo700 [marca registrada] and Ultra K10 [marca registrada]. Based on the data collected, there was a positive effect on the combined use of fungicides and foliar fertilizers, observing a reduction in the severity of the diseases and consequent increase in crop productivity.