
NOTE ON 1998/99 U.S. PRODUCTION FORECASTS:
Planted acres reported in March 31, 1998 Prospective Plantings.
WHEAT: Harvested acres and yield for spring wheat (including durum) projected using harvested-to-planted ratios and yields by State for 1993-1997. Winter wheat harvested acreage and yield reported in May 12 Crop Production.
CORN: Harvested acres projected by using relationship between planted and harvested for 1995-97. Projected yield is derived from trend over 1960-97 period.
SORGHUM AND BARLEY: Harvested acres projected by using relationship between planted and harvested for 1995-97. Projected yield derived from simple linear trend fit over 1960-97 period. OATS: Harvested acres reported in March 31 Prospective Plantings. .Projected yield derived from simple linear trend fit over 1960-97 period.
RICE: Harvested acres projected using harvested-to-planted ratios by State and type of rice for 1993-97. Projected yield is calculated using the olympic average (high and low years excluded) for 1993-97 weighted by State and type of rice. The average is adjusted by the 1990-1997 yield trend.
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