2017 Ohio Soybean Starter Fertilizer Study
The purpose of this study is to evaluate various soybean starter fertilizers, applied in-furrow, and their effects on yield and profitability.
Early on in the 2017 season, the biggest differences in canopy coverage that were observed were the result of genetics. The BECK 382L4brand family is known to produce larger, bushier soybeans. This year, they demonstrated an average reading of 17.0 percent canopy coverage, while the same measurable area only averaged 16.1 percent with the BECK 366L4brand genetics.
Although canopy coverage differences were minimal, the starter fertilizers with the lowest canopy coverage also correlated to the lowest yields. This leads us to believe that these starters were helping, if only mildly, with early-season vigor and growth. When tissue samples were taken at the V5 growth stage, less than a one percent difference was noted in the nitrogen and potassium content between these samples and less than 0.25 percent difference in phosphorus values. Overall, yield differences with the addition of starter were negligible at this site in 2017.
2-YEAR FIRST PASS® WITH MICROCARB ZMB™ (3-5-15) RETURN ON INVESTMENT
V3 PERCENT CANOPY COVERAGE
Planted 4/27/2017 | Harvested 9/26/2017 | Population 150,000 Seeds/A. | Row Width 15 in. | Previous Crop Corn | Tillage Fall: Disk-Rip, Spring: Field Cultivation | Herbicides Pre: 5 oz. Authority® First, 1 qt. Liberty®, 4 oz. TriCor® DF Post: 1 qt. Liberty®, 4 oz. Section® Three | Insecticides Escalate™ | Soil Type Kokomo (Silty Clay Loam) | Soil Test Values pH 7.8, O.M. % 4.2, CEC 20.2 | Percent Base Saturation Ca 79.3, Mg 18.8, K 1.9, H 0 | Parts Per Million P 32, K 150, S 10, Zn 3, Mn 47, B 1.2
Sure-K®, First Pass® with MicroCarb ZMB™ (3-5-15), n-crease™, Exude