There is concern among soybean producers that manganese and sulfur deficiencies are causing yield reductions.

A Purdue University study shows that high-yielding, modern corn hybrids take up not only more nitrogen from soil but more micronutrients such as zinc, iron, manganese and copper. Nitrogen fertilizer rates also influence how much of these nutrients are stored in the grain at harvest.

Manganese can do soybeans a lot of good in many situations, according to field projects and trials by DuPont Pioneer agronomists.