Harp-N-Tek Products for Soybeans
ProAct™ Plant Health Regulator is one of the next-generation Harp-N-Tek™ protein products designed specifically to provide a yield boost for row crops such as soybeans. In replicated and commercial field trials from 2005 and 2006, ProAct increased soybean yields an average of 2.48 bushels per acre. This yield increase with ProAct offers about a 3-to-1 return on investment. ProAct treatments were typically applied during early bloom (R1 to R2) and generally included a nonionic surfactant at 0.25% v/v.
ProAct is compatible with most post-emergence fungicides, insecticides, growth regulators, and foliar nutrients applied to soybeans. Just add ProAct to the tank first for best results. This provides extra flexibility in application timing and saves a separate pass over the crop that can be costly in terms of time, fuel, and compaction.
ProAct is rain fast after 30 minutes or after spray materials dry. There will be no detectable residue of ProAct remaining within hours of the application. N-Hibit has been tested at 100 times field application rates and no Harpin Protein was detected on the harvested soybeans. ProAct has not been found to cause phytotoxicity or crop injury.