More specific barley "yields" (in kg/m^2) are of greater interest to farmers who uses GPS date to manage fertilizer application and soil conservation. Also, kg/m^2 is much easier to visualize than t/ha. Averages (of kg/m^2) over an entire farm, or an entire state, or country could still satisfy the needs of agriculture economists. .................. On Sat, 8 Sep 2001, James R. Frysinger wrote: > ... > US growing areas, yields in metric tons and metric tons per hectare: > http://www.usda.gov/agency/oce/waob/jawf/profiles/html/usa/usabar.html
