1. Weather Effects on Yield

2. Drowning Damage

3. Wet Feet

4. Water Needs Moderate early Moderate early  < 1 in 1 st month Highest before bloom Highest before bloom  > 1 in 2 nd month Moderate after topping Moderate after topping  1 in or less after topping

5. Rainfall Data for Kentucky - 1983 Yield = 1600 lb/a Trends = Poor root development, poor nutrient uptake, low yield, thin body, poor quality Low green weight

6. Rainfall Data for Kentucky - 1992 Yield = 2225 lb/a Trends = Poor root development, poor nutrient uptake, moderate yield, average body, fair quality, high green weight

7. Rainfall Data for Kentucky - 1994 Yield = 2400 lb/a Trends = Excellent root development, good nutrient uptake, high yield, good body, good quality, average green weight

8. Rainfall Data for Kentucky - 2002 Yield = 1930 lb/a Trends = ?

9. Average Rainfall from Major StationsLocationMayJuneJulyAugustSept Glasgow6.294.695.543.458.65 Lexington3.822.681.932.925.44 Louisville6.883.321.300.967.88 Spindletop4.362.451.100.954.90 Average5.343.292.472.076.72

10. Formula for Calculating Yield Yield = 2075 + ((May Rainfall x -20.06) plus (June rainfall x -14.7) plus(July rainfall x 19.92) plus (August rainfall x 51.24) plus (September rainfall x -21.56))

11. Formula for Calculating Yield Yield = 2075 + ((5.34 x -20.06) = -107.12 plus (3.29 x -14.7) = -48.36 plus(2.47 x 19.92) = 49.20 plus (2.07 x 51.24) = 106.07 plus (6.72 x -21.56) = -144.88 = -145.09 Yield = 1929.91

12. Marketings for 2002 1929.91 lb/a X 104,000 acres = 200,710,640 lbs Beltwide marketings if KY = 70% of total 286,729,486 lbs Beltwide marketings if KY = 68% of total 295,162,706 lbs