2019 Central Illinois Corn Disc Opener Study
The purpose of this study is to determine what effect different disc openers have on emergence and yield.
2019 PLANT AND ROOT EVALUATIONS
The STP disc opener helped create a good seedbed that improved emergence and final stands.
Planted 6/3/2019 | Harvested 10/23/2019 | Population 34,000 Seeds/A. | Row Width 30 in. | Previous Crop Soybeans | Tillage Fall: No-Till, Spring: No-Till | Herbicides Pre: 1 qt. Roundup PowerMAX®, 1.5 qt. Atrazine, 5.6 oz. Corvus® Post: 1 qt. Roundup PowerMAX®, 1 pt. Atrazine, 3 oz. Laudis® | Insecticides Escalate® | Starter 10 gal. 28-0-0 2x2 | Total Nitrogen 190 units as UAN | Brand 6049SX | Soil Type Flanagan (Silt Loam) | Soil Test Values pH 7.1, O.M. % 5, CEC 19.3 | Percent Base Saturation Ca 77.8, Mg 19.9, K 2.3, H 0 | Parts Per Million P 60, K 174, S 9, Zn 2.3, Mn 38, B 0.7
STP Disc Opener