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<br />i <br />-5- <br />Loamy Plains l16 <br />Permeability of these soils is moderately slow to moderate. <br />Water-holding capacity is high. Water intake rate is moderate to <br />good. Runoff is slow to medium and the hazard of water erosion <br />varies from slight to high but can be severe when the vegetation has <br />been destroyed. <br />Soil Series <br />2 <br />Adena loams <br />Baca clay loam <br />Baca loam <br />Baca silt loam <br />Baca silty clay loam <br />Alluvial land complex <br />Campo clay loam <br />Colby fine sandy loam <br />Colby silt loam, clay substratum <br />Colby silt loam <br />Fort Collins Loam <br />Harvey loam <br />Keith silt loam <br />Kim fine sandy loam <br />Kim loam <br />Manuel loam <br />Manuel loam, eroded <br />Manuel silt loam <br />B. MAJOR F]SES AND INTERPRETATIONS FOR: <br />1. Grazing <br />Manzanola clay loam <br />Minnequa loam . <br />Rago silt loam <br />Renohill loam, moderately <br />shallow <br />Renohill loam <br />Satanta loam <br />Singerton <br />Stoneham loam <br />Stoneham-Kim loams, eroded <br />Tyrone loam <br />Tyrone soils, eroded <br />Weld silt loam <br />Wiley and Baca soils, <br />eroded <br />Wiley silt loam <br />Wiley loam <br />All ages and classes of livestock graze this site. Proper <br />distribution of water is essential to get uniform grazing. About 85 <br />percent of the total annual yield is from species that furnish <br />forage for grazing animals: <br />This site has a variety of grasses, and shrubs such as winterfat and <br />fourwing saltbush. These species provide good nutrition for grazing <br />animals. Continuous year-long grazing or grazing from April to <br />October by cattle cause western wheatgrass, and needleandthread to <br />be replaced by bluegrama, sand dropseed, and galleta. A system of <br />deferred grazing, which varies the season of grazing use in pastures <br />during successive years, is needed to maintain a healthy well- <br />balanced plant community. Rest during different seasons benefits <br />different plants. Summer rest (May-September) benefits warm-season <br />plants such as blue grama and sideoats grama. Fall and winter <br />grazing (October-February) should not exceed 65Y, use of the yearly <br />growth on shrubs such as winterfat and fourwing saltbush. Spring <br />rest (March-July) benefits cool-season plants such as western <br />wheatgrass and needleandthread. Deferment during late winter and <br />spring reduces competition between grazing animals for palatable <br />shrubs and forbs. <br />