Bestor, N., D. Mueller, and A. Robertson. 2011. The effect of spraying fungicides at R1 or R3 on soybean. Iowa State Univ.
Hanna, S., S.P. Conley, and G. Shaner. 2005. Impact of fungicide application timing and soybean row spacing on spray canopy penetration and grain yield. Purdue Univ.
Trybom, J. and M. Jeschke. 2009. Foliar fungicide and insecticide effects on soybean yield. DuPont Pioneer Crop Insights 19:1.
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