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property is 11 acres in size. The field is primarily grass and forbs with about 5 percent alfalfa. <br />The field yielded 517 bales on the first cutting with an average bale weight of 84 Ib/bale. The <br />production for this field was 43,428 pounds (517 bales X 84 Ib/bale) or 3,948 Ib/acre (1.97 <br />tons/acre). <br />Composition of the irrigated pasture hayland type is highly variable from field to field. Fields <br />generally in good condition are dominated by orchard grass, smooth brome, alfalfa and clover. <br />Areas that have poor drainage are dominated with rushes and sedges. Areas in less than good <br />conditions are dominated with Kentucky bluegrass and various weeds. <br />Johnson and Benson all thought that they could achieve an annual production potential of at <br />least 3 tons/acre in two cuttings, as was asserted by operators in 1987 and reiterated in 1999. <br />These figures are higher than those shown in table 2.04.10-8 which indicates an average 1932 <br />lbs/acre (.97 tons/acre) in 1987. Variation in yield in 1999 was directly related to the degree of <br />management and climatic variability. The Alfafa field which was intensively managed produced <br />the highest yields (8523 lbs/acre) while the least managed field that had been invaded by <br />prarie dogs had the lowest yield (1140 lbs/acre). <br />A dominant factor contributing to production values in 1999 is the climatic trend for 1998-1999. <br />1999 is thus far proving to be an excellent year for herbage production. The 1998-1999 winter <br />was warm and mild (table 2.04.10-2) and the precipitation for spring and summer has been <br />high (Table 2.04.10-1). Precipitation is running 177 percent of normal for the San Miguel Basin <br />(NRCS, NOAA). This trend has had the effect of elevating production levels. <br />February 2015 (TR -66) 2.04.10-59 <br />