1. Coffee Shop Talk Heath Sanders Area Agronomy Specialist
Oklahoma State University
June 20, 2018

2. Crop Updates Oklahoma Wheat Harvest Dry Conditions/Rain?
Nitrates and Testing
Double Crop Planting Tips
Upcoming Meetings/Field Days

3. Oklahoma Wheat Harvest
90% Complete as of June 19, 2018
Good harvest conditions
Yields have been all over the board
10-60 bu/ac
Lower yields in northern and North Central Oklahoma
Quality –Overall looks pretty good
Test weights- Favorable
Protein 12%-13% Some reports of higher
USDA crop production estimate for Oklahoma 2 million harvested acres at 26 bu/ac yield
52 Million bushel Oklahoma wheat crop
Oklahoma Wheat Commission

4. Wheat Harvest Updates Grain Yields Forage Yields
Forage Yields
Chickasha
Stillwater
Haskell
2018 OSU Small Grains Variety Performance Test publication will be available

5. 30-Day Rainfall

6. 60-Day Rainfall

7. Drought Monitor

8. Forage Production April-May Rains? Hot and Windy
Pastures are going backwards
Western Oklahoma is drier
Producers are looking for alternative feed/hay sources
Many types of forages planted across the state in grazed out wheat acres
Forage sorghum
Nitrate Accumulation?

9. Factors in Nitrate Accumulation
Plant Factors
Plant species
Forage sorghums, millets
Weeds – kochia, pigweeds, etc
Plant parts
Lower stem - highest nitrate
Leaves -- lower
Maturity
Immature plants – greater potential
Weather Conditions
Anything that stresses the plant
High heat, drought, cloudy
Fertility
High level of nitrogen -- greater potential

10. Diphenylamine Test Qualitative Test for Nitrates Prepared Solution
Place drop on the inner tissue of plant
Blue color
High Levels
Send into lab for accurate levels
False Positives

11. Double Crop Considerations
Herbicide History
Know previous cropping system
Herbicide carryover
Herbicides and application dates
Did it have any soil residual?
How long has it been applied?
Rainfall?
Sulfonlyurea Herbicides

12. Planting Planting date Planting depth
No-Till may have to plant deeper to cut through the straw or residue
Planting rate
Row spacing and Equipment
Calibration
Slow Down!
No-till, good residue management (watch hair pinning) needed to secure good soil to seed contact

13. Avoid hair-pinning of residue

14. Weed Management Start Off Clean and Stay Clean Weed ID Is Critical
Burn-Down
Pre-emergence
Post-emergence

15. Great Plains Grazing Conference
Cattle, Climate, Culture & Change

16. 2018 Forage Summer Field Day
Chickasha Research Station
Topics
Forage Quality
Crabgrass
Alfalfa Pest
Teff Management
Forage fertilization
Sorghum Toxicity
Contact Grady Co. Extension Office

17. Thanks!