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Core variables and their yield effect:

1. Achieve uniform emergence (5-9%)

2. Plant within the optimum window (2-5%)

3. Achieve the correct population (1-2%)

4. Achieve uniform plant spacing (1-2%)

Optimum planting weather:

1. Soil temp of 50 or higher

2. Good short term forecast

3. Warming trend with lows that stay in the 40’s or greater

4. No wild swings in temperature

5. >90 GDU’s in 10-day forecast…roughly what it takes for emergence