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Huerlano County Area, Colorado <br />~.a <br />range is in poor condition. <br />This unit is well suited to irrigated hay and pasture. <br />Irrigation water can be applied by corrugations and by <br />flooding Irom contour ditches. Leveling helps to insure <br />the uniform application o1 water. To avoid overirrigating <br />and leaching of plant nutrients, applications of irrigation <br />water should tie adjusted to the available water capacity, <br />the water intake rate, and the crop needs. <br />Proper grazing practices, weed control, and fertilizer <br />are needed to insure maximum quality of forage. It <br />properly managed, this unit can produce 4.5 tons of <br />The map unit is in capab~liry subclass Vlle, <br />nonirrigated. It is in the Pinyon-Juniper woodland site. <br />17-fort Collins loam, i to 3 percent scopes. This <br />deep, well drained soil is on uplands. It formed in eolian <br />silt and tine sand. The native vegetation is mainly grass. <br />Elevation is 5,500 to 6,300 lest. The average annual <br />precipitation is t2 to 16 inches, the average annual air <br />temperature is 50 to 54 degrees F, and the average <br />frost-free period is t25 to t50 days. <br />Typically, the surface layer is grayish brown loam <br />about 4 inches thick. The subsoil is clay loam about 19 <br />inches thick. The substratum to a depth of 60 inches or <br />more is loam. The soil is neutral to a depth of 4 inches, <br />mildly alkaline to a depth of 23 inches, and moderately <br />alkaline below that depth. <br />Included in this unit is about 10 percent Baca loam m <br />swales and drainageways. <br />Permeability of this Fort Collins soil is moderate. <br />Available water capacity is high. Effective rooting depth <br />is 60 inches or more. Runoff is medwm, and the hazard <br />of water erosion is slight to moderate. <br />This unit is used mainly as rangeland. It is also used <br />as irrigated and nonirrigated cropland. Hay and pasture <br />are the main irrigated crops. Wheat is the main <br />nonirrigated crop. <br />The potential plant commurnty on this unit is mainly <br />blue grams. Other grasses that characterize the unit are <br />western wheatgrass and sideoats grams. The average <br />annual production of air-dry vegetation Is about 1,000 <br />pounds per acre. II the condition of the range <br />deteriorates, threeawn, cholla, pricklypear, and <br />snakeweed increase. Range seeding is suitable i1 the <br />Faun 1.-ProlJs oI Fens+u ve+Y DnvW/~' s~ndj' kum, r0 <br />ro 35 peresnr sbpet. The arrow ~noKSrn the ... •....•.•......•,......y...__ ... _~....._. __.... _. _. _.,.. <br />blowing and conservation of moisture are important <br />soh ~,.~ concerns. Because precipitation is not sullicient for <br /> annual cropping, a cropping system that includes small <br />Woodland products such a5 firewood, fenceposts, and <br />' grain and summer tallow is most suitable. Solt blowing <br />can be reduced by planting crops in alternate strips at <br />Ohit. Removal of <br />in on nuts are available on this <br />p y right angles to the prevailing wind. <br />standing dead trees and thinning the green overstory Excessive cultivation can result in the formation of a <br />promote the growth o1 grass and younger trees. Leaving tillage pan. This pan can be broken by subsoiling when <br />• high juniper slumps with several small live branches the soil is dry. Crop residue left on or near the surtace <br />promotes the growth of a fenceposl crop. helps to conserve moisture, maintain filth, and control <br />This unit is poorly suited to homesite development. erosion. With good management, this unit can produce <br />The main limitations are shallow depth to bedrock and 14 bushels per acre of wheat grown in ewheat-tallow <br />steepness of slope. cropping system. <br />