Pesticide and Adjuvant Mixture Impacts on the Physical–Chemical Properties, Droplet Spectrum, and Absorption of Spray Applied in Soybean Crop

Tank mixing of pesticides, a common practice in many countries, when performed incorrectly, can negatively impact the effectiveness pesticides. This study aimed to investigate physical–chemical properties, droplet spectrum, and absorption by soybean plants mixtures azoxystrobin fungicide with glyphosate herbicide different adjuvants (mineral oil, propionic acid, orange oil). The design was completely randomized, five treatments (T): T1, only fungicide; T2, + glyphosate; T3, mineral oil; T4, acid; T5, oil. spray concentrations simulated an application rate 160 L ha−1 using TT110015 nozzle. physical stability, hydrogen ion potential, electrical conductivity, surface tension, were evaluated. To measure absorption, sprayed at reproductive growth stage, leaf samples collected after 0, 2, 48 h. amount absorbed determined gas chromatography. results indicated that physically compatible. All produced medium spectrum. T2 had lowest percentages, suggesting these pesticides should not be mixed. Adjuvants increased plants, it took 2 h on average for leaves absorb 72.58% applied spray.