It is almost time that anhydrous ammonia (NH3) applications could begin (remember 50 F and cooling 4-inch soil temperature). However, many soils in Iowa are quite dry this fall. So, can anhydrous ammonia be applied to dry soil? Will it be held in dry soil?
Iowa State University
Sawyer, John E., "Anhydrous Ammonia Application and Dry Soils" (2011). Integrated Crop Management News. 275.
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