An agronomist says the sulfur deficit in the soil is greater because of high yielding crops and because of cleaner air. Less acid rain since the 1980s has lowered the sulfur content in soil, says Dr. Cristie Preston of Nutrien.
“High amounts of sulphate were being deposited, and with the Clean Air Act, we’ve cleaned that up, we’re not getting the sulfur deposition, and this was enough to meet crop needs,” said Preston, during Nutrien’s virtual launch of Smart Nutrition MAP+MST fertilizer.
