O efeito do pH na eficiência de fungicidas sistêmicos em cultivares de soja no município de Campo Mourão – PR

Abstract

Soybean production is one of the main activities to contribute towards the Brazilian economy development it’s mainly focused on export trade and on Food products industrialization. When searching for greater productivity, farmers need products that can ensure the crops’ resistance and manage its diseases, for example, fungicides. Thus, during this Project, the fungicides efficiency was checked by pH influences, testing three different ones (Fox Xpro®️, Elatus®️ and Aproach Prima®️) in three different growth soybean stages: the vegetative emergence, the blooming and the seed developing stage. Besides the fungicides, were used mineral oil, the adjuvant Agro Gc 20®️ and the fungicide enhancer Bacfol®️. The experiment was conducted in an Ceded area by Agrícola School Instituiton, in Campo Mourão – Paraná, the space was divided into five treatments and four replications, with one control sample and four pH variations (five, six, seven and eight), totaling up twenty plots. The average productivity and the phenomena that occurred were analyzed, using the SASM­Agri software. Finally, the results showed the treatment (T2) with pH = 5 was the best conditions for the soybeans, which presented greater productivity than the other ones with different treatments and the control sample.