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Home My WebLink About20063041.tiff • RiSW n 87W. 2.4;`•.�'T...r • y 3 , , 7. K >no g YYj lI !. y�Q? § 7t s ti l • I/ t • A - ^°f .,Z. l je ftalons:.; . ly •e+ ,/ °) f . .,�•i. lei , ... .' . I a __Li 4 i yy f / a/ y a ._ 9� Is �f Q , °.rte 1 - iZ {1 ,/,-'� t YM !.. 1 i I C J y I' ' .ad Y fs - 99g ,�� ti.� �1 „r i l � l . yl y :le 4c :M.I ` a.. ..» -. ...•...+.. 4..4,44,4v,Fl,,., —.w.................. �., 1 I.v'] .'}. m. IL. .. xuut . .-. '1W . .de a -........... -....... .....a-, :,..-�.,,.....:. - . .Lwta...,,,,,:;..;- _. ... ZAAD AREA ;1P y.�, a(J aIt L MOW:StWiUYIG Oft* 4d. (jam._ • [e•rt IV t ..L Ste— ! •N'fM.IT.Mey La., AL-)LLLN(T.O]U11g!L A y� f'/!'Y119 TX!'N6.G=JUT OLIMMLI TII:Y 1,...W0-1.SJihi5 I v'T•'' ... C. St..e Yn aidiQLOCA owe.y . " Tit ZULCOW0 0MWOCW SOUCY r-a1,.: II compel I. I_ . o .... —- x..s.z.. NM DO MC NH-amLxicu ooa9ATuc 9laY{c+s Ode MN lor.WY Oita SY.S•11I fvh:I'M70C 2006-3041 Soil Survey Map—Longmont Broadcasting USR sr'�.F Y f 1, fij� ♦: : s 47 44 . . Y S }} i r 7: - 1 x„4,4 ,14. *N4, v vh, , , .„,,... 51 r.e ,,,„,,,, ,, i. '�, ,,, „,,,4� 7$ ;'� ti 41 Al. k aI 1- ` .40 � � ✓� r Image scanned from Map Sheet No. 29 of the USDA Soil Conservation Service Soil Survey of Weld County, Southern Part. Soil types present on subject property: 33—Kim Loam, 3 to 5% slopes 47—Olney Fine Sandy Loam, 0 to 1% slopes 48—Olney Fine Sandy Loan, 1 to 3% slopes 76—Vona Sandy Loam, 1 to 3% slopes 77—Vona Sandy Loam, 3 to 5% slopes Soil descriptions attached. r WELD COUNTY, COLORADO, SOUTHERN PART •23 • and environmental plantings of trees and The potential native vegetation is dominated by blue y grown in the area are generally well grams. Several mid grasses, such as western wheatgrass this soil. Cultivation to control competing and needleandthread, are also present. Potential produc- should be continued for as many years as tion ranges from 1,600 pounds per acre in favorable years • : planting.Trees that are best suited and to 1,000 pounds in unfavorable years. As range condition survival are Rocky Mountain juniper, eastern deteriorates, the mid grasses decrease; blue grams, buf- ponderosa pine, Siberian elm, Russian-olive,and falograss, snakeweed, yucca, and fringed sage increase; The shrubs best suited are skunkbush sumac, and forage production drops. Undesirable weeds and an- pesihrub, lilac,and American plum. nulls invade the site as range condition becomes poorer. is an important secondary use of this soil The Management of vegetation on this soil should be based areas provide favorable habitat for ring-necked on taking half and leaving half of the total annual produc- ed mourning dove. Many nongame species can tion. Seeding is desirable if the range is in poor condition. - • by establishing areas for nesting and escape Sideoats grams, little bluestem, western wheatgrass, blue • pheasants, undisturbed nesting cover is earn- grama,pubescent wheatgrass, and crested wheatgrass are eked be included in plans for habitat develop- suitable for seeding. The grass selected should meet the in areas of intensive agriculture. seasonal requirements of livestock. It can be seeded into Si has good potential for urban and recreational a clean, firm sorghum stubble, or it can be drilled into a Increased population growth in the survey firm Prepared seedbed. Seeding early in spring has resulted in increased homesite construction. The proven most successfuL - feature for urban development and road Windbreaks and environmental plantings of trees and is the limited capacity of the soil to support shrubs commonly grown in the area are generally well tank absorption fields function properly,but suited to this soil. Cultivation to control competing sewage systems should be provided if the vegetation should be continued for as many years as possible following planting. Trees that are best suited and density increases. Because of the permeability aebasatum, sewage lagoons must be seated. have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and webs,and trees grow well Capability class I it hackberry. The shrubs best suited are skunkbush sumac, • loam, 1 to 3 percent slopes. This is a deep, • Siberian pesahrub and American plum. Wildlife soil on smooth plains and alluvial fans at is an important secondary use of this soil The • cropland areas provide favorable habitat for ring-necked of 4,900 to 5,250 feet. It formed in mixed eolian and parent sediment from a wide variety of pheasant and mourning dove. Many nongame species. can Leloded in mapping are small areas of soils that be attracted by establishing areas for nesting and escape . send underlying material cover. For pheasants, undisturbed nesting cover is essen- - • the surface layer is brown and pale brown tial and should be included in plans for habitat develop ment, especially in areas of intensive agriculture. Range- 12 land wildlife, for example, the pronghorn antelope, can be inches thick.The upper 28 inches of the un material is pale brown loam. The lower part to a SO inches is pale brown fine sandy loam, attracted by developing livestock watering facilities, iss moderate. Available water is managing livestock grazing, and reseeding where needed. rooting depth is inches tcapacity or more. This soil has good potential for urban and recreational Taff is ooti gnd 60 ches low• development. Increased population growth in the survey medium,this soil theis erosion suited z ricrops com- area has resulted in increased homesite construction. The pawn areasin the area, including corn,all chief limiting soil feature for urban development and road • smallsugar beets, construction is the limited capacity of this soil to support - grain, potatoes, and onions. An exam- a load. Septic tank absorption fields function properly,but aaltabis cropping system is 3 to 4 years of alfalfa community sewage systems should be provided if the by cora,corn for silage, sugar beets, small grain, Land leveling, ditch population ythe substratum,density increases.sewage Because la of the permeability lining (fig. 6), and installing of the lagoons must be sealed_ may be needed for proper water applications. Lawns, shrubs, and trees grow well. Capability subclass • . of irrigation are suitable, but furrow ir- IIe irrigated, IVe nonirrigated; Loamy Plains range site. is the most common. Barnyard manure and com- 33—Kim loam, 3 to 5 percent slopes. This is a deep, Letllizer are needed for top yields. well drained soil on plains and alluvial fans at elevations • areas this soil is suited to winter wheat, of 4,900 to 5,250 feet. It formed in mixed eolian deposits and sorghum. Most of the acreage is planted to and parent sediment from a wide variety of bedrock. In- sbeat and is summer fallowed in alternate years chided in mapping are small areas of soils that have aminfure accumulation. Generally precipitation is loamy sand underlying material. Sr beneficial use of fertilizer. Typically the surface layer is brown and pale brown ankh farming, st iperopping, and minimum til- loam about 10 inches thick.The upper 28 inches of the un- needed to control soil blowing and water erosion. derlying material is pale brown loam. The lower part to a also may be needed to control water erosion. depth of 60 inches is pale brown fine sandy loam 24 SOIL SURVEY Permeability is moderate. Available water capacity is land wildlife, for example, the pronghorn antelope, can be high. The effective rooting depth is 60 inches or more. attracted by developing livestock watering facilities, Surface runoff is medium, and the erosion hazard is managing livestock grazing, and reseeding where needed. moderate. This soil has good potential for urban and recreational In irrigated areas this soil is suited to crops commonly development. Increased population growth in the survey grown in the area Perennial grasses and alfalfa or close area has resulted in increased homesite construction. The grown crops should be grown at least 50 percent of the chief limiting soil feature for urban development and road time. Contour ditches and corrugations can be used in ir- construction is the limited capacity of this soil to support rigating close grown crops and pasture. Furrows, contour a load. Septic tank absorption fields function properly, but furrows, and cross slope furrows are suitable for row community sewage systems should be provided if the crops. Sprinkler irrigation is also suggested. Keeping til- population density increases. Because of the permeability lage to a minimum and utilizing crop residue help to con- of the substratum, sewage lagoons must be sealed. trol erosion. Maintaining fertility is important. Crops Lawns, shrubs, and trees grow well. Capability subclass respond to applications of phosphorus and nitrogen. IIIe irrigated, IVe nonirrigated; Loamy Plains range site. In nonirrigated areas this soil is suited to winter wheat, barley, and sorghum. Most of the acreage is planted to 34—Kim loam, 5 to 9 percent slopes. This is a deep, winter wheat. The predicted average yield is 28 bushels well drained soil on plains and alluvial fans at elevations per acre. The soil is summer (allowed in alternate years of 4,900 to 5,250 feet. It formed in mixed eolian deposits to allow moisture accumulation. Generally precipitation is and parent sediment from a wide variety of bedrock. In- too low for beneficial use of fertilizer. eluded in mapping are small areas of soils that have Stubble mulch fanning, striperopping, and minimum til- loamy sand underlying material. lage are needed to control soil blowing and water erosion. Typically the surface layer is brown and pale brown Terracing also may be needed to control water erosion. loam about 10 inches thick. The upper 25 inches of the un- The potential native vegetation is dominated by blue derlying material is pale brown loam. The lower part to a grama. Several mid grasses, such as western wheatgrass depth of 60 inches is pale brown fine sandy loam. and needleandthread, are also present. Potential produc- Permeability is moderate. Available water capacity is tion ranges from 1,600 pounds per acre in favorable years high. The effective rooting depth is 60 inches or more. to 1,000 pounds in unfavorable years. As range condition Surface runoff is rapid, and the erosion hazard is deteriorates, the mid grasses decrease; blue grams, buf- moderate. falograss, snakeweed, yucca, and fringed sage increase; This soil is suited to limited cropping. Intensive and forage production drops. Undesirable weeds and an- cropping is hazardous because of erosion. The cropping nuals invade the site as range condition becomes poorer. system should be limited to such close grown crops as al- Management of vegetation on this soil should be based falfa, wheat, and barley. This soil also is suited to ir- on taking half and leaving half of the total annual produc- rigated pasture. A suitable cropping system is 3 to 4 tion. Seeding is desirable if the range is in poor condition years of alfalfa followed by 2 years of corn and small Sideoats grams, little bluestem, western wheatgrass, blue grain and alfalfa seeded with a nurse crop. grams, pubescent wheatgrass, and crested wheatgrass are Close grown crops can be irrigated from closely spaced suitable for seeding. The grass selected should meet the contour ditches or sprinklers. Contour furrows or sprin- seasonal requirements of livestock. It can be seeded into kiers should be used for new crops. Applications a clean, firm sorghum stubble, or it can be drilled into a nitrogen and phosphorus help in maintaining good produc- firm prepared seedbed. Seeding early in spring has tion. proven most successful The potential native vegetation is dominated by blue Windbreaks and environmental plantings of trees and grams. Sideoats grams, little bluestem, western wheat- shrubs commonly grown in the area are generally well grass, and sedge are also prominent. Potential production suited to this soil. Cultivation to control competing ranges from 1,800 pounds per acre in favorable years to vegetation should be continued for as many years as 1,500 pounds in unfavorable years. As range condition possible following planting.Trees that are best suited and deteriorates, the sideoats grama and little blueste have good survival are Rocky Mountain juniper, eastern decrease; forage production drops; and blue grams, buf redcedar, ponderosa pine, Siberian elm, Russian-olive,and falograss, and several perennial forbs and shrubs •, hackberry. The shrubs best suited are skunkbush sumac, crease. Undesirable weeds and annuals invade the site lilac, Siberian peashrub, and American plum. range condition becomes poorer. Wildlife is an important secondary use of this soil. The Management of vegetation should be based on , cropland areas provide favorable habitat for ring-necked half and leaving half of the total annual production. • pheasant and mourning dove. Many nongame species can ing is desirable if the range is in poor condition. Sideoa be attracted by establishing areas for nesting and escape grams, little bluestem, western wheatgrass, and p cover. For pheasants, undisturbed nesting cover is essen- bescent wheatgrass are suitable for seeding. The .. tial and should be included in plans for habitat develop- selected should meet the seasonal needs of livestock. I ment, especially in areas of intensive agriculture. Range- can be seeded into a clean, firm sorghum stubble, or . 12 SOIL SURVEY ire Rocky Mountain juniper, eastern redcedar, ponderosa ble years to 1,800 pounds in unfavorable years. As ran rine, Siberian elm, Russian-olive, and hackberry. The condition deteriorates, the sand bluestem, sand reed shrubs best suited are skunkbush sumac, lilac, and Siberi- and switchgrass decrease and blue grama, sand dropsee tr""ashrub. and sand sage increase. Annual weeds and grasses invad dlife is an important secondary use of this soil The the site as range condition becomes poorer. ropland areas provide favorable habitat for ring-necked Management of vegetation on this soil should be b 3heasant and mourning dove. Many nongame species can on taking half and leaving half of the total annual produ re attracted by establishing areas for nesting and escape tion. Seeding is desirable if the range is in poor conditio over. For pheasants, undisturbed nesting cover is essen- Sand bluestem, sand reedgrass, switchgrass, sideoa :ial and should be included in plans for habitat develop- grams, blue grams, and pubescent wheatgrass are sui rent,especially in areas of intensive agriculture. ble for seeding. The grass selected should meet th Rapid expansion of Greeley and the surrounding area seasonal requirements of livestock. It can be seeded in gas resulted in urbanization of much of this Olney soil. a clean, firm sorghum stubble, or it can be drilled into This soil has good potential for urban and recreational firm prepared seedbed. Seeding early in spring ievelopment. The only limiting feature is the moderately proven most successfuL rapid permeability in the substratum, which causes a Windbreaks and environmental plantings are gene hazard of ground water contamination from sewage suited to this soil. Soil blowing, the principal hazard • lagoons. Lawns, shrubs, and trees grow well. Capability establishing trees and shrubs, can be controlled by c class I irrigated. tivating only in the tree row and by leaving a strip 47—Olney fine sandy loam, 1 to 3 percent slopes.. vegetation between the rows. Supplemental irrigati This is a deep, well drained soil on plains at elevations of may be needed at the time of planting and during d 4,600 to 5,200 feet. It formed in mixed outwash deposits. periods. Trees that are best suited and have good surviv Included in mapping are small areas of soils that have a are Rocky Mountain juniper, eastern redcedar, ponds dark surface layer. Some small leveled areas are also in- pine, Siberian elm, Russian-olive, and hackberry. eluded. shrubs beat suited are skunkbush sumac, lilac, and Sibe Typically the surface layer of this Olney soil is grayish an peashrub. brown fine sandy loam about 10 inches thick. The subsoil Wildlife is an important secondary use of this soil is yellowish brown and very pale brown sandy clay loam cropland areas provide favorable habitat for ring-neck about 14 inches thick. The substratum to a depth of 60 pheasant and mourning dove. Many nongame species inches is very pale brown, calcareous fine sandy loam. be attracted by establishing areas for nesting and eats Permeability and available water capacity are cover. For pheasants, undisturbed nesting cover is ease n rate. The effective rooting depth is 60 inches or tial and should be included in plans for habitat develo non a. Surface runoff is medium,and the erosion hazard is ment, especially in areas of intensive agriculture. Ran low. land wildlife, for example, the pronghorn antelope, can In irrigated areas this soil is suited to all crops tom- attracted by developing livestock watering faciliti monly grown in the area, including corn, sugar beets, managing livestock grazing, and reseeding where need beans, alfalfa, small grain, potatoes, and onions. An exam- Rapid expansion of Greeley and the surrounding ple of a suitable cropping system is 3 to 4 years of alfalfa has resulted in urbanization of much of the Olney followed by corn, corn for silage, sugar beets, small grain, This soil has good potential for urban and recreatio or beans. Land leveling, ditch lining, and installing development. The only limiting feature is the moderate pipelines may be needed for proper water application. All rapid permeability in the substratum, which causes methods of irrigation are suitable, but furrow irrigation is hazard of ground water contamination from sew the most common. Barnyard manure and commercial fer- lagoons. Lawns, shrubs, and trees grow well. Capabili tilizer are needed for top yields. subclass Iie irrigated, IVe nonirrigated; Sandy P ' In nonirrigated areas this soil is suited to winter wheat, range site. barley, and sorghum. Most of the acreage is planted to 48—Olney fine sandy loam, 3 to 5 percent slo winter wheat. The predicted average yield is 28 bushels This is a deep, well drained soil on plains at elevations per acre. The soil is summer fallowed in alternate years 4,600 to 5,200 feet. It formed in mixed outwash deposi to allow moisture accumulation. Generally precipitation is Included in mapping are small areas of soils that have too low for beneficial use of fertilizer. dark surface layer and small areas of soils that ha Stubble mulch farming, striperopping, and minimum til- sandstone and shale within a depth of 60 inches. lage are needed to control soil blowing and water erosion. Typically the surface layer of this Olney soil is gra • Terracing also may be needed to control water erosion. brown fine sandy clay loam about 8 inches thick. The su The potential native vegetation on this range site is soil is yellowish brown and very pale brown fine san dominated by sand bluestem, sand reedgrass, and blue loam about 12 inches thick. The substratum to a depth grama. Needleandthread, switchgrass, sideoats grams, 60 inches is very pale brown, calcareous fine sandy loam. and western wheatgrass are also prominent. Potential Permeability and available water capacity production ranges from 2,200 pounds per acre in favora- moderate. The effective rooting depth is 60 inches Is WELD COUNTY, COLORADO, SOUTHERN PART 33 Surface runoff is medium, and the erosion hazard is ment, especially in areas of intensive agriculture. Range- land wildlife, for example, the pronghorn antelope, can be irigated areas this soil is suited to the crops corn- attracted by developing livestock watering facilities, grown in the area. Perennial grasses and alfalfa or managing livestock grazing, and reseeding where needed. grown crops should be grown at least 50 percent of Rapid expansion of Greeley and the surrounding area . Contour ditches and corrugations can be used in has resulted in urbanization of much of this Olney soil. • close grown crops and pasture. Furrows, con- The soil has good potential for urban and recreational furrows,and cross slope furrows are suitable for row development. The only limiting feature is the moderately Sprinkler irrigation is also desirable. Keeping til- rapid permeability in the substratum, which causes a to a minimum and utilizing crop residue help to con- hazard of ground water contamination from sewage erosion. Maintaining fertility is important. Crops lagoons. Lawns, shrubs, and trees grow well. Capability to applications of phosphorus and nitrogen. subclass Me irrigated, IVe nonirrigated; Sandy Plains nonirrigated areas this soil is suited to winter wheat, range site. , and sorghum. Most of the acreage is planted to 49—Osgood sand, 0 to 3 percent slopes. This is a deep, wheat. The predicted average yield is 25 bushels well drained soil on smooth plains at elevations of 4,680 to acre. The soil is summer fallowed in alternate years 4,900 feet. It formed in eolian sands. Included in mapping moisture accumulation. Generally precipitation is are small areas of soils that have a subsoil within 20 for beneficial use of fertilizer. inches of the surface. Also included are small areas of le mulch farming, striperopping, and minimum tr7- soils that have a loam and sandy clay loam subsoil. are needed to control soil blowing and water erosion. Typically the surface layer of this Osgood soil is gray also may be needed to control water erosion. iah brown sand about 22 inches thick. The subsoil is potential native vegetation on this range site is brown sandy loam about 12 inches thick. The substratum by sand bluestem, sand reedgrass, and blue to a depth of 60 inches is pale brown loamy sand and Needleandthread, switchgrass, sideoats grama, sand. western wheatgrass are also prominent. Potential Permeability is moderately rapid. Available water . n ranges from 2,200 pounds per acre in favors- capacity is moderate. The effective rooting depth is 60 to 1,800 pounds in unfavorable years. As condi- inches or more. Surface runoff is very slow, and the ero- deteriorates, sand bluestem, sand reedgrass, and aim hazard is low. s decrease and blue grama, sand dropseed, and This soil is suited to limited cropping. Intensive sage increase. Annual weeds and grasses invade the cropping is hazardous because of erosion. The cropping as range condition becomes poorer. system should be limited to such close grown crops as el- ement of vegetation on this soil should be based falfa, wheat, and barley. This soil also is suited to ir- taking half and leaving half of the total annual proctor- rigated pasture. A suitable cropping system is 3 to 4 Seeding is desirable if the range is in poor condition. years of alfalfa followed by 2 years of corn and small bluestem, sand reedgrass, switchgrass, rodents grain and alfalfa seeded with a nurse crop. blue grams, pubescent wheatgrass, and crested Closely spaced contour ditches or sprinklers can be s are suitable for seeding. The grass selected need in irrigating close grown crops. Contour furrows or meet the seasonal requirements of livestock It can sprinklers should be used for new crops. Applications of seeded into a clean, firm sorghum stubble, or it can he nitrogen and phosphorus help in maintaining good produc- into a firm prepared seedbed. Seeding early m rimt has proven most successful. The potential vegetation on this soil is dominated by Windbreaks and environmental plantings are generally and bluestem, sand reedgrass, switchgrass, sideoats to this soil. Soil blowing, the principal hazard in grams, needleandthread, little bluestem, and blue grama. blishing trees and shrubs, can be controlled by ad- Potential production ranges from 2,500 pounds per acre in ting only in the tree row and by leaving a strip of favorable years to 1,800 pounds in unfavorable years. As tation between the rows. Supplemental irrigation range condition deteriorates, the sand bluestem, be needed at the time of planting and during dry switehgrass, sand reedgrass, sideoats grama, and little Sods.Trees that are best suited and have good survival bluestem decrease; forage production drops; and sand Rocky Mountain juniper, eastern redcedar, ponderosa sage increases. Undesirable weeds and annuals invade , Siberian elm, Russianolive, and hackberry. The and "blowout" conditions can occur as range condition bs best suited are skunkbush sumac, lilac, and Merl- becomes poorer. peashrub. Management of vegetation on this soil should be based Wildlife is an important secondary use of this soil The on taking half and leaving half of the total annual produc- pland areas provide favorable habitat for ring-necked tion. Seeding is desirable if the range is in poor condition. asant and mourning dove. Many nongame species can Sand bluestem, sand reedgrass, indiangrass, switchgrass, attracted by establishing areas for nesting and escape sideoats grams, little bluestem, and blue grama are suite- never. For pheasants, undisturbed nesting cover is essen- ble for seeding. Because this soil is susceptible to soil bal and should be included in plans for habitat develop- blowing, the grasses should be seeded with an interseeder 48 SOIL SURVEY Management of vegetation on this soil should be based Windbreaks and environmental plantings are gene on taking half and leaving half of the total annual produc- suited to this soil. Soil blowing, the principal hazard tion. Seeding is desirable if the range is in poor condition. establishing trees and shrubs, can be controlled by Sand bluestem, sand reedgrass, switchgrass, sideoats tivating only in the tree row and by leaving a strip grams, blue grams, pubescent wheatgrass, and crested vegetation between the rows. Supplemental irriga • wheatgrass are suitable for seeding. The grass selected may be necessary at the time of planting and during should meet the seasonal requirements of livestock. It can dry periods. Trees that are best suited and have be seeded into a clean, firm sorghum stubble, or it can be survival are Rocky Mountain juniper, eastern redce. drilled into a firm prepared seedbed. Seeding early in ponderosa pine, Siberian elm, Russian-olive, and hack. spring has proven most successful. ry.The shrubs best suited are skunkbush sumac, lilac, Windbreaks and environmental plantings are fairly well Siberian peashrola suited to this soil. Blowing sand and low available water Wildlife is an important secondary use of this capacity are the principal hazards in establishing trees Ring-necked pheasant, mourning dove, and many and shrubs. This soil is so loose that trees should be game species can be attracted by establishing areas planted in shallow furrows and vegetation maintained nesting and escape cover. For pheasants, undist between the rows.Supplemental irrigation may be needed nesting cover is essential and should be included in p to insure survival. Trees that are best suited and have for habitat development especially in areas of inters' good survival areagriculture. ne, Mountain juniper, eastern This soil has good potential for urban and recreatio. redcedar, ponderosa pine, and Siberian elm. The shrubs development. Lawns, shrubs, and trees grow well. best suited are ekudcbusrh- sumac, lilac, and Siberian only limiting feature is the rapid permeability in the s peashrob. stratum, which causes a hazard of ground water Wildlife is an important secondary use of this soil. Ran- lamination from sewage lagoons. Capability subclass eland wildlife, for example, the pronghorn antelope, can irrigated. be attracted by developing livestock watering facilities, 76—Vona sandy loam, 1 to 3 percent slopes. This managing livestock grazing,and reseeding where needed.This soil has good potential for urban and recreational deep, well drained soil on plains and high terraces development. Once established, the lawns, shrubs, and elevations of 4,600 to b 200 feet It formed in eolian treesgrow well. Thealluvial deposits. Included in mapping are some leve primary limiting soil feature is the areas Also included are small areas of soils that hay: rapid permeability in the substratum, which causes a loamy substratum and areas of soils that are noncal hazard of ground water contamination from sewage ous to a depth of 60 inches. lagoons. In places recreational development is limited by Typically the surface layer of this Vona soil is gra the susceptibility to soil blowing. Capability subclass VIe brown sandy loam about 10 inches thick. The subsoil irrigated, VIe nonirrigated; Sandy Plains range site. brown fine sandy loam about 18 inches thick. The s 75—Vona sandy loam, 0 to 1 percent slopes. This is a stratum to a depth of 60 inches is sandy loam. deep, well drained soil on high terraces at elevations of Permeability is moderately rapid. Available wa. 4,650 to 4,950 feet. It formed in alluvial deposits. Included capacity is moderate. The effective rooting depth is in mapping are some leveled areas and small areas of inches or more. Surface runoff is slow, and the ero • soils that have a loamy substratum. hazard is low. Typically the surface layer of this Vona soil is grayish In irrigated area this soil is suited to all crops cr brown sandy loam about 10 inches thick. The subsoil is monly grown in the area, including corn, sugar . brown fine sandy loam about 20 inches thick. The sub- beans, alfalfa, small grain, and onions. An example . stratum to a depth of 60 inches is sandy loam. suitable cropping system is 3 to 4 years of alfalfa Permeability is moderately rapid. Available water lowed by corn,corn for silage,sugar beets, small grain, capacity is moderate. The effective rooting depth is 60 beans. Land leveling, ditch lining, and installing pipe'. inches or more. Surface runoff is slow, and the erosion are needed for proper water applications. hazard is low. All methods of irrigation are suitable, but furrow This soil is used almost entirely for irrigated crops. It rigation is the most common. Barnyard manure and • is suited to all crops commonly grown in the area, includ- mercial fertilizer are needed for top yields. ing corn, sugar beets, beans, alfalfa (fig. 7), small grain, Windbreaks and environmental plantings are gene potatoes, and onions. An example of a suitable cropping suited to this soil. Soil blowing, the principal hazard system is 3 to 4 years of alfalfa followed by corn,corn for establishing trees and shrubs, can be controlled by silage, sugar beets, small grain, or beans. The rapidly tivating only in the tree row and by leaving a strip permeable substratum slightly restricts some crops. vegetation between the rows. Supplemental irriga All methods of irrigation are suitable, but furrow ir- may be necessary at the time of planting and during . rigation is the most common. Proper irrigation manage- periods.Trees that are best suited and have good survi ment is essential. Barnyard manure and commercial fertil- are Rocky Mountain juniper, eastern redcedar, ponde izer are needed for top yields. pine, Siberian elm, Russian-olive, and hackberry. WELD COUNTY, COLORADO, SOUTHERN PART 49 suited are skunkbush sumac, lilac, and Siberi- and awitdrgiass decrease and blue grams, sand dropseed, and sand sage increase. Annual weeds and grasses invade is an important secondary use of this soil. The the site as range condition becomes poorer. provide favorable habitat for ring-necked Management of vegetation on this soil should be based mourning dove. Many nongame species can on taking bait and leaving half of the total annual produc- by establishing areas for nesting and escape lion. Seeding is desirable if range is in poor condition. ts, undisturbed nesting cover is essen- Sand bseiteas, sand reedgrass, switchgrass, sideoats be included in plans for habitat develop- grams, bile grams, pubescent wheatgrass, and crested in areas of intensive agriculture. Range- wheatgrass are suitable for seeding. The grass selected for example, the pronghorn antelope,can be should meet the seasonal requirements of livestock. It can developing livestock watering facilities, be seeded into a dean,firm sorghum stubble, or it can be grazing,and reseeding where needed. drilled into a Rem prepared seedbed. Seeding early in good potential for urban and recreational spring has proven most successful Lawns, shrubs, and trees grow well. The Windbreaks and environmental plantings generally are feature is the rapid permeability in the sub- suited to this d. Sena blowing, the principal hazard in causes a hazard of ground water con- establishing tress and shrubs, can be controlled by cul- sewage lagoons. Capability subclass lie tivatsg ose1y 4 the tree row and by leaving a strip of nonirrigated; Sandy Plains range site. vegetation between the rows. Supplemental irrigation idy loam, 3 to 5 percent slopes. This is a may be needed at the time of planting and during dry soil on plains at elevations of 4,600 to periods.Trees that are best suited and have good survival formed in eolian deposits. Included in ate Hooky Maontain juniper, eastern redcedar, ponderosa sell areas of soils that have a loamy sub- pine, Siberian she, Russian-olive, and hackberry. The areas of soils that are noncalcareous to a shrub beat eased are akunkbush sumac, lilac and Siberi- an passbroL surface layer of this Vona soil is grayish Males a important secondary use of this soil. The hem about 8 inches thick. The subsoil is cmpkmd areas pswide favorable habitat for ring-necked loam about 15 inches thick. The sub- p1— ---t ad __..g dove. Many nongame species can of 60 inches is sandy loam. be attracted by edabiahing areas for nesting and escape is moderately rapid. Available water cover. Far pitem ten,undisturbed nesting cover is essen- te. The effective rooting depth is 60 tint and Rhombi be adaded in plans for habitat develop- Surface runoff is medium, and the erosion meat,erpeslb ha as of intensive agriculture. Range- land wale,Ur sample,the pronghorn antelope, can be areas this soil is suited to the crops corn- attsaebed by dessimiag livestock watering facilities, a the area. Perennial grasses and alfalfa or masers bra dsk rah&and reseeding where needed. should be grown at least 50 percent of This a bon pad potential for urban and recreational ditches and corrugations can be used in development Ian, shrubs, and trees grow well. The grown crops and pasture. Furrows, con- only Tarr fines the rapid permeability in the sub- ad cross slope furrows are suitable for row strata, width emus a hazard of ground water con- irrigation is also desirable. Keeping til- M atia be sasses lagoons. Capability subclass Ilk and utilizing crop residue help to con- irrigated,Vie aadminted;Sandy Plains range site. Rhintaining fertility is important. Crops 7S—Weill lases S le 1 percent dopes. This is a deep, ms of phosphorus and nitrogen. well drained ai a aooth plains at elevations of 4,850 to areas this soil is suited to winter wheat, 5,000 feet. It Lend in eolian deposits. Included in Most of the acreage is planted to naming me a all users of soils that have a subsoil of The predicted average yield is 28 bushels lone and Night ehrr ho- Also included are some leveled aai is summer fallowed in alternate years area accumulation. Generally precipitation is Typically the cram layer of this Weld soil is brown beneficial use of fertilizer. Is about lb Srb s thick.The subsoil is brown and pale wriperopping, and minimum tillage are brown hewn el4 boa and light clay about 20 inches soli blowing and water erosion. Terra- thick.The akmtar to a depth of 60 inches is silt loam. needed to control water erosion. Pmaerhi 'a iw. Available water capacity is high. native vegetation on this range site is The etlGmelve albs depth is 60 inches or more. Surface acrd binestem, sand reedgrass, and blue rands dw,smut the erosion hazard is low. , switchgrass, sideoats grams, 17s awls ad alma entirely for irrigated crops. It are also prominent. Potential is surd b all mops commonly grown in the area includ- from 2,200 pounds per acre in favora- ing an.war beets,beams,alfalfa, small grain, potatoes, pounds in unfavorable years. As range and Asa An eaopbe of a suitable cropping system is 3 the sand bluestem, sand reedgrasa, to 4 yews of alfaYt followed by corn, corn for silage, Hello