Sulfur and potassium deficiencies could lower alfalfa yields
Alfalfa growers seeing light-green, stunted and spindly patches – or entire anemic-looking alfalfa fields – may want to apply sulfur this spring.
It could increase yields by up to 1 ton per acre per cutting, according to Iowa State University (ISU) research.
Or it may not, says Carrie Laboski, the University of Wisconsin soil scientist who recently analyzed alfalfa plant samples from around her state.
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