The purpose of this study is to test different starter fertilizer placements using the Seed-Squirter® Application System from CapstanAg™ on 15 in. and 30 in. r ow spacings to determine their impact on yield and profitability.

2018 Ohio Corn Starter Fertilizer Placement Study - Seed-Squirter®

This is the second consecutive year in which 15 in. corn, planted at higher populations, has provided both a yield increase and a positive return on investment (ROI) compared to 30 in. rows. The first thing we need to achieve when it comes to corn is consistent eme rgence, and we had great conditions for even emergence following planting at the Ohio PFR site. Because of the warm soils we experienced and the lack of heavy rain events, minimal stand differences were observed among treatments. All but one of the treatments that utilized the Seed-Squirter® at 5 gal./A. provided a yield advantage compared to a steady stream of in-furrow starter fertilizer. However, the 5 gal./A. rate always provided both a yield and ROI advantage versus the applications of 2.5 gal./A. utilizing the Seed-Squirter technology. XL® 5828AM™*brand showed a more consistent response to a higher concentration of nutrients near the seed and seedling with the Seed-Squirter. One could hypothesize that this was a result of more modest root system establishment versus XL® 6082AM™*brand, which is quicker to establish roots and reach soil nutrient reserves.

Fall: Disk-Rip, Spring: Field Cultivation | 

Pre: 2 lb. Atrazine, 5.6 oz. Corvus®, 1 qt. Roundup PowerMAX® | 

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Starter Fertilizer Placement Study

2018 Ohio Corn Starter Fertilizer Placement Study - Seed-squirter®

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