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UNITED STATES DEPARTMENT OF AGRICULTURE <br />SOIL CONSERVATION SERVICE <br />356 Ranney Street <br />Craig, Colorado 81625 <br /> <br />January 30, 1987 <br />`Bill Agnew, Environmental Engineer <br />Trapper Mine <br />Poet Office Box 187 <br />- Craig, Colorado 81626 <br />Mr. Agnew: <br />Included ie our best estimate on what the average production Le for <br />irrigated and non-irrigated hayland in Moffat County. I will give <br />you a range. <br />Production varlee radically depending on what Boil le present end <br />whet species have been establlehed on the site. Production also varlee <br />on how long the vegetation has been there. We find instances where the <br />r pasture land is still increasing in production,has stabilized, or <br />actually is declining in production because it's been there too long. <br />production ie also a matter of good or poor. management. In the non- <br />lrrlge[ed situation we find vas[ fluctuations in production based on <br />the annual rainfall and when that rainfall actually occured. <br />Production ie also a function of aspect. <br />Irrigated hey Alfalfa 2000 to 8000 pounds of annual production. <br />Irrigated Mixed hay- alfalfa-greee mixes range from 2000 to 8000 <br />pounds of annual production. <br />Non-irrigated alfalfa greee mixes range from 1500 [0 4000 pounds of <br />annual production. <br />Non-irrigated grass (.intermediate wheatgraee) this range goes from <br />800 to IBOO pounds of annual production. <br />Non-irrigated alfalfa greee mixes range from 1500 to 4000 pounds of <br />annual production. <br />Fig. 4.5 -1. Soil Conservation Service Hayland <br />Production Estimates. <br />4 - 143 <br />0 <br />REVISED FEB 13 '87 <br />