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Official Series Description-&ZANOLA Series • Page 2 of 3 <br /> ' major part of the solum and C horizon above depth of 40 inches and are mainly 1/4 to 3 inches in <br /> diameter. <br /> The A horizon has hue of 5Y through 7.5YR, value of 4 through 7, 3 through 6 moist, and chroma of <br /> 1 through 4. It ranges from mildly alkaline through strongly alkaline. <br /> The Bt horizon has hue of 5Y through 7.5YR, value of 5 through 7,4 through 6 moist,and chroma <br /> of 1 through 6. This horizon is heavy clay loam, heavy silty clay loam or light clay. It ranges from <br /> mildly alkaline through strongly alkaline and ranges from nonsaline to slightly saline. <br /> ' The Bk horizon has hue of 5Y through 7.5YR, value of 6 or 7,4 or 5 moist, and chroma of 2 through <br /> 4. This horizon is light clay loam, silty clay loam, light clay, or loam. It ranges from moderately <br /> alkaline through very strongly alkaline and has about 4 to 14 percent calcium carbonate equivalent. <br /> It ranges from nonsaline to slightly saline. <br /> ' COMPETING SERIES: These are the Aqua Fria, ArD, Baca Falfa, Hesaer, Mu ouse Mu ut, <br /> Norrest, Pankv, Rencalson Renohill, Thurlow, Ulm,and yamo series. Aqua Fria soils have gravel <br /> and cobble at depths of 18 to 36 inches and have noncalcareous A and Bt horizons. Arp, Mughouse, <br /> ' Mughut,Norrest, Rencalson and Renohill soils have bedrock above depth of 40 inches. Baca soils <br /> have less than 15 percent fine or coarser sand in the argillic horizon and are noncalcareous in at least <br /> one-fourth of their Bt horizons. Hesper soils have A horizons with coatings of values 5 dry and 3 <br /> moist when uncrushed, have less than 15 percent fine or coarser sand in the Bt horizon, and has <br /> noncalcareous A and Bt horizons. Panky soils usually have hue of 5YR and have calcic horizons. <br /> Thurlow soils are noncalcareous to depths of 10 to 20 inches and have stratified C horizons. Ulm <br /> soils are noncalcareous to depths of 12 to 30 inches, have neutral or mildly alkaline Bt horizons and <br /> have strong prismatic structure in the Bt horizon. Wyarno soils have solums less than 10 inches thick <br /> to the base of the Bt horizon and have C horizons with more than 35 percent clay to depths of 40 <br /> inches or more. Falfa soils have hues of 5YR and redder in the Bt horizon. <br /> ' GEOGRAPHIC SETTING: The Manzanola soils are on alluvial fans,valley side slopes, or stream <br /> terraces. Slopes range from 0 to 25 percent. They formed in alluvial materials derived principally <br /> from sedimentary rock. At the type location the average annual precipitation is approximately 13 <br /> ' inches, with peak periods of precipitation in the spring and early summer. <br /> GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Baca soils and the Limon <br /> soils. Limon soils have no argillic horizon. <br /> DRAINAGE AND PERMEABILITY: Well drained; medium to slow runoff; moderately slow to <br /> slow permeability. <br /> ' USE AND VEGETATION: These soils are used as native pastureland and for dryland and irrigated <br /> crops. Native vegetation is principally blue grama. Dryland crops are principally wheat; alfalfa, <br /> ' small grains, wheat, and row crops are grown under irrigation. <br /> DISTRIBUTION AND EXTENT: Eastern Colorado. The series is of small extent. <br /> MLRA OFFICE RESPONSIBLE: Salina,Kansas <br /> SERIES ESTABLISHED: Pueblo Area, Colorado, 1974. <br /> National Cooperative Soil Survey <br />