At the Agronology 10 Research Center at Walcott, Iowa, in the last four years (2011-2014) the soybean yields have truly been outstanding. The package of management factors employed has included:
- Early planting date
- Ready 2 Yield Soybeans with excellent disease control packages
- Good soil test P & K values
- 91% of the soybeans had a soybean fertility package applied
- Effective early weed control
- Fall tillage
Table 1
Critical Observations at the Agronology 10 Research Center
Observations_________ 2011 2012 2013 2014 4 Yr. AV.
AV yield for 18 plots/yr: 80.5 72.7 81.8 77.4 78.1
Highest yield for individual plot/yr: 84.0 75.3 89.8 81.6 82.7
Planting Date: 5/02 4/25 5/01 5/06 5/1
P&K applied (fall, dribble band): 15/18 17/18 17/19 17/18 91%
P (ppm) 36 33 31 28 32
K (ppm): 227 224 236 211 224
CEC (MEQ): 19.2 24.7 18.8 20.2 20.7
Tillage (fall): 18/18 18/18 19/19 18/18 100%___