maize (Zea mays), soybean (Glycine max), air-propelled grit, weed control
Abrasive grit, applied at high pressure and directed at plant base, can control weeds and increase yield. We evaluated fertilizer [pelletized turkey (Meleagris gallopavo) litter] and non-fertilizer [walnut (Juglans regia) shell] grits for maize and soybean in-row (IR) weed management. Grits were applied at V1 and V5 of maize, and V1 and V3 of soybean. Between-row weed cultivation was done alone (BR), or in combination with grit (I/B), after grit application. Small weeds (<4 >cm) were controlled after grit treatment, but, larger broadleaf weeds, grass weeds (treated when growing points were below ground), and later emerging weeds resulted in IR weed biomass similar between season-long weedy (SLW) and IR treatments by August. In maize, fertilizer and nonfertilizer I/B treatments averaged 44 and 14% greater yields, respectively, than SLW (p
Physical Methods for Stimulation of Plant and Mushroom Development
DOI of Published Version
© 2018 The Author(s)
Carlson, Michael; Forcella, Frank; Wortman, Sam; and Clay, Sharon A., "Using Abrasive Grit for Weed Management in Field Crops" (2018). Agronomy, Horticulture and Plant Science Faculty Publications. 58.
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