“If a tissue test reveals a sulfur deficiency, it probably will show a nitrogen deficiency, as well,” Ferrie says. “Both are structure-building components, so sulfur (like nitrogen) is ...

Over the past 10 years, sulfur deficiency has become a significant issue. “Farmers are measuring considerably less sulfur, depending on where you live, than they were just five to 15 years ago ...

“Yellowing leaves are a sign of magnesium deficiency, especially between the veins, and new leaves are a sign of sulfur deficiency. Plants with these deficiencies may grow stunted, yield ...