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AdvanSix’s agronomy experts are available to answer your questions about how to get the most out of your ammonium sulfate investment. Mercedes Gearhart has overseen agronomic research at AdvanSix for more than 20 years, and has a wealth of knowledge about fertilizer use efficiency and improving crop yields. Check out the questions asked below or ask your own question.
Why is early-season nitrogen fertilization not a common practice on soybeans?
The concern is that nitrogen applied during vegetative stages in soybeans may prevent symbiotic nitrogen fixation from fully developing. Yet, ammonium sulfate fertilization at planting (from a few weeks before planting up to V4-V5) has shown to be beneficial in promoting root development and ultimately resulting in higher yields of timely planted soybeans.