Moly Shortfall Hard on Plants
Originally published on DTN

When a nutrient deficiency occurs, the crop typically has telltale visual symptoms—at least to the skilled eye. That's not the case for the micronutrient molybdenum (Mo), said crop consultant Matt Hagny, who recently discovered a fairly widespread deficiency of that micronutrient in clients' fields from central Kansas to Nebraska. His investigation into mysterious wheat and soybean symptoms may have implications as far as Iowa and central Illinois.
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A Little-Known Nutrient
Originally published in Farm Journal

Molybdenum—or more precisely the lack of—may be robbing yields from a surprising number of fields.

Research conducted by Matt Hagny, who runs Pinnacle Crop Tech (www.agronomypro.com), a consulting service based in Wichita, Kan., discovered deficiencies of molybdenum, an essential micronutrient, while searching for the cause of pale green plants despite adequate nitrogen levels in clients’ wheat fields.

“Ordering molybdenum testing was a shot in the dark,” Hagny says.
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Correction/Update: Since these articles were written, Hagny has discovered that soil applications of Mo are totally ineffective on the types of clays found in Kansas soils, except where the Mo is applied in a band with P fertilizer. Apparently in some parts of the world, soil Mo applications (with water as a carrier) are effective, as stated by several authorities on the subject.