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:,/dl ~-Manzano loam, 0 to :' percent slopes. This deep, well drained oil is orr stream terraces ar~d foot slopes ar~d iri drairiageways. It formed in olluviurn and alluvium derived dorninar~tly from sedimentary rock. The native egetatior~ is rnair~ly grass. Elevation is [-•,20H to 7, $r7 k7 feet. The average nr~ua I precipitation i s 15 to ::Z i aches, the • average annual air ternperatur•e s 47 to 51 degrees F, ar~d the average ~-ost-free season is G0 to 140 days. Typical ly, ttie surface layer is loam 6 ir~ct~es thick. Thee sut~soi I is clay Darn 19 iaches thick. The suGstraturn to a depth of !,0 inches or rnor-e is Darn. TF~e soi I is neutral to a depths of 25 inches ar~d rnoder•ately alkaline nd calcareous below tF~at depth.. Included ire tF~is unit is 10 per•cer~t Fort Collins barn ors foot slopes. Iso included are small areas of soil that have a water table at a depths of ess than 4 feet. Tt~e per-rneat~ility of this Manzano soil is moderate. Available water opacity is high. Effective routing depth is 60 inches or• more. Runoff is low, ar~d the hazard of water erosion is slight. This unit is used as rangeland and far irrigated hay and pasture. The pc,ter~tial plant community ors this unit is mainly western wheatgrass, lue grarna, and prairie junegrass. Other less numerous plants ar-e native luegr•ass, green needlegrass, and little Gluestem. The average annual r•oduction of air-dry vegetation is about 1,30!7 pounds per acre. If the undition of the range deteriorates, sleepygr•ass, ring mutely, cholla, and all rabt~itbrush increase. TF~is unit is well suited to irrigated hay ar~d pasture. Irrigation water- are be applied by corrugations and by flooding from contour ditches. To void over irrigation and leaching of plant nutrients, application of r•r•igation water should be adjusted to the available water capacity, the ater intake rate, ar~d the crop needs. Leveling helps tc~ insure the uniform pplication of water. Froper stocL:ing rates, pasture r•otatior~, and estricted grazing during wet periods help • to I:eep the pasture ire good ondition and to protect the Soil from r-os i c~r~. Use of r. i trc~gen and hosphorus fert i I i zer pr•omates good ,~r-uwth of forage plants. If properly anaged, this unit can produce 4 tors of ir-r-igated grass hay per acre. This unit is well suited to wir~dbrea4:s ar~d environmental plantings. upp I erner~ta I i r-r• i gat i on may be needed wt~er~ F• I ant i rig and dur• i ng dry periods. rnong the trees that ar-e suitable far planting are Russiar~- olive, cottonwood, rid gulden willow. Among the shrubs ar•e honeysuckle ar~d car•agar~a. This rnap unit is well suited to homesite development. This rnap unit is in capability sut~classes IIc, irrigated, ar~d IVe, or~ir-r-igated. It is in Loarny Faoth~i I Is range site.