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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.
Over-application of poultry litter to fields across my region has resulted in extremely high phosphorus levels. Could this impact the availability of other nutrients?
Yes. Phosphorus is adsorbed to soil minerals in a stronger fashion than sulfur, so excessive phosphorus reduces sulfur efficiency as more sulfur is displaced via leaching. The organic phosphorus in litter may also reduce zinc availability.