1. Rate: 1.3 lbs. / Bu. of yield goal Timing 1/3 or less @ planting 2/3 or more @ sidedress Source/Application method Urea sources may volatilize on surface Inject N-sol or minimize broadcast amount Ammonium nitrate preferred for broadcast Rate: 1.3 lbs. / Bu. of yield goal Timing 1/3 or less @ planting 2/3 or more @ sidedress Source/Application method Urea sources may volatilize on surface Inject N-sol or minimize broadcast amount Ammonium nitrate preferred for broadcast Nitrogen Fertility

2. V6 V12 Silk Milk Dent P.M % of Uptake Corn Nitrogen Uptake

3. Sidedress N Placement Fibrous, lateral root system Nitrogen is mobile in soil Avoid root pruning Fibrous, lateral root system Nitrogen is mobile in soil Avoid root pruning Row middle is preferable

4. Beneficial before tassel Amount dependent on height Corn less than 3 ft: 200 lbs/a Corn taller than 3 ft: 100 -150 lbs/a. Ammonium nitrate is preferred Urea is volatile when broadcast Foliar N = No response Beneficial before tassel Amount dependent on height Corn less than 3 ft: 200 lbs/a Corn taller than 3 ft: 100 -150 lbs/a. Ammonium nitrate is preferred Urea is volatile when broadcast Foliar N = No response Supplemental Nitrogen

5. Poly vs Orthophosphates 10-34-0 50% of P as ortho More nitrogen Less expensive 10-34-0 50% of P as ortho More nitrogen Less expensive 3-18-18 Contains K Less corrosive More expensive 3-18-18 Contains K Less corrosive More expensive No difference in field studies Starter Fertilizer Sources

6. Precision is critical Dont plant in the mud Minimal soil temp of 50° F Calibrate and check in the field Lubricate planter and seed Plant 1 ½ - 2 inches deep Drive slow < 5mph Precision is critical Dont plant in the mud Minimal soil temp of 50° F Calibrate and check in the field Lubricate planter and seed Plant 1 ½ - 2 inches deep Drive slow < 5mph Corn Planting Rules

7. Yield Response to Plant Population Plants per Acre Yield (% of max.)

8. Dryland Seeding Chart Seeding Rate Seed Spacing (inches)Final Stand 30-inch38-inch40-inch 5% loss10% loss 24000 8.76.96.52280021600 26000 8.06.36.02470023400 28000 7.55.95.62660025200 30000 7.05.55.22850027000 32000 6.55.24.93040028800 34000 6.14.94.63230030600 36000 5.84.64.43420032400

9. Irrigated Seeding Chart Seeding Rate Seed Spacing (inches)Final Stand 30-inch38-inch40-inch 5% loss10% loss 24000 8.76.96.52280021600 26000 8.06.36.02470023400 28000 7.55.95.62660025200 30000 7.05.55.22850027000 32000 6.55.24.93040028800 34000 6.14.94.63230030600 36000 5.84.64.43420032400

10. VE V6 V12 VT/Silk Milk Dent Mature Corn Physiological Development Apr 1 May 1June 1Aug 1July 1 Drydown Vegetative Stages Reproductive Stages

11. Corn Nutrient Requirements CropYieldP2O5P2O5 K2OK2OSMg Corn2001142653365 Cotton1200581682925 Soybeans60581991924 Wheat80541622024 Dont Guess – Soil Test!