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Soil Loading Effects of Planter Depth-Gauge Wheels on Early Corn Growth

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2008 Providence, Rhode Island, June 29 – July 2, 2008  083968.(doi:10.13031/2013.24631)
Authors:   H Mark Hanna, Brian S Steward, Landon Aldinger
Keywords:   Corn, depth, emergence, gauge, growth stage, load, planter, seed, soil, spacing, wheel

Final soil manipulation before seed germination occurs during the planting operation. Contact force of depth-gauge wheels adjacent to the seed opener potentially alters the environment for corn seed germination and early plant growth. A field experiment was conducted measuring seed spacing, spacing variability, seed depth, emergence rate, plant dry matter, final stand, crop growth stage, and extended leaf height with different soil contact loads (light, 18 to 50 kg (40 to 110 lb); medium, 50 to 91 kg (110 to 200 lb); and heavy, over 91 kg (200 lb)) and a range of three soil moistures (dry, moist, wet). A treatment with randomly variable contact load similar to that of a conventional planter (control) was also included.

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