Trial Type
P & K
General Stats
Soil Stats
Methodology
Previous on-farm soybean trials had shown potential yield gains when potassium was applied at the summit position. Therefore, a K20 small plot trial was performed in 2016 at three different landscape positions to further-investigate. This report focuses on the Summit landscape position, where three reps were each fertilized with 0, 60, 120, and 250 lbs K2O ac-1. Potash (0-0-60) was broadcast on June 5 at V2. Fertilizer was then incorporated into soil between the soybean rows with a roto-tiller to a depth of approximately 6 inches. Soybeans with a 1.4 maturity rating were planted in 30” rows on May 19 at 145,000 seeds ac-1. Soybeans were treated with Rancona and inoculated with Bio-Boost. DAP and Potash fertilizer was applied in the spring of 2016 at rates of 100 and 50 lbs/ac respectively. The field was tilled after corn harvest in 2015 and field cultivated in the spring.
Results
Yields difference due to different fertilizer treatments was not noted in this trial (Table 2). Soil available potassium level and yield did not seem to be related.
Rainfall
Temperature
Applications
| Event Date | Type | Application Method | Amount | |
|---|---|---|---|---|
| V2 | 05/06/2016 | K | Infurrow | No Value |
Fertilizer Applications
| Event Date | Type | Application Method | Amount | |
|---|---|---|---|---|
| V2 | 05/06/2016 | K | Infurrow | No Value |