Investigating Hybrid Interactions with Nitrogen and Foliar Fungicides
IPNI-2010-CAN-ON30
07 Jun 2010
Methodology
Brief Methods:
- 3 Locations (Ridgetown, Belmont, Exeter) x 2 years
- Experimental Design: Split-Strip Plot with 4 replications
- Main plot: 5 nitrogen rates (0, 45, 90, 135, and 180 kg N/ha)
- Split plot: 12 hybrids – same hybrids all 3 locs [i.e., single trait (GT) vs stacked; disease tol vs sus]
- Split-Strip: 3 Fungicide applied at VT-R1 (UTC, Headline, Proline)
- Total plots per location: 720
- See attached for plot layout; 12 hybrids randomized within blocks; each hybrid 2-rows x 18-m in length; plots will be split with fungicide tmts applied using our JD Research Sprayer
- a dilute slurry solution of NLB and ES inoculum will be applied over the experimental area for some disease pressure
Measurements:
Severity ratings by disease on ear leaf and overall plant at VT and 4 weeks after VT, stay green before harvest/frost, push test before harvest, yield components (i.e., grain yield, seed weight, etc.), moisture content, N soil samples presidedress/harvest, on-site weather, N analysis of plant parts