|
<br />
<br />depth of 36 inches; few mediiar, mottles of
<br />lime; strongly ea]care ous; gradual, smooth
<br />boundary .
<br />C3--40 so SD inc]~es, light yellowish-brwm (10
<br />6/4) loam, yell orish brown (]OYR S/4) en
<br />aoist; massive; hard then dry, friab xhen
<br />moist; strongly calcareous; clear mooch
<br />botmdary .
<br />C4--50 to 60 inches, very pale bra 30YR 7/4)
<br />sandy clay loran, light yell ish brown (]OYR
<br />6/4) when moist; massive; ,ard when dry, very
<br />friable when moist; str 61y calcareous.
<br />The texture of the C izon ranges from loam to
<br />sandy clay loam or to fine gravel.
<br />Otero soils are oci.ated with Vona and Cazcajo
<br />soils, They are t like Vona soils. They differ
<br />in being ca]care throughout the profile, whereaz
<br />Vona soils are of calcareous in the upper part.
<br />Vona soils so have a B horizon, but the Otero
<br />soils do not.
<br />Otero sandy loam, 1 to 5 percent slopes (OtC)
<br />This soil has the profile described a_a typical for
<br />the series. ]t is mostly in the western part of the
<br />county in areas up to 900 acres in size.
<br />The principal inclusion is 1'ona sand~~ loam, 1 to
<br />5 percent slopes. In places there are pebbles or
<br />small limestone fragments scattered about on the
<br />surface. Total intltl:ions account for less than ]5
<br />percent of each mapped area.
<br />This soil is mderate in fertility and water-
<br />holding capacity. It needs careful management that
<br />maintains enough cover to reduce water erosion.
<br />(Irrigated capabilit}' unit ]]]e-8; nonirri gated Ca-
<br />pability unit VIe-3; Sand.• Plains range site)
<br />Penrose Series
<br />The Penrose series consists tf shallow and very
<br />sha)]ow, excessively drained, gen ._~~ slopi r.g to
<br />steep and }~~11 ~~ ch arne r' ]Dams a: developed tr,
<br />material weathered from li acs ne. These are exten-
<br />sive soils in the part o£ t rnun t>~ that rs ranpe.
<br />In a [}pica] profile t surface ia~~er, about 5
<br />inches thick, is gr a~~is -b-own ch a.^.nen loam. Ma^~
<br />limestone fragments to E inch e: ir: d: ameter are
<br />scattered or. the s .ace. The t:sari n e:.ai layer,
<br />about F inches tF ~cf., is 1ig;.t brown is}-g: a}' chan-
<br />nery loam ti:at ont ai ns abundant roots :o a dap ;h of
<br />about i inch Below a depth. of about ]I inches is
<br />parent ]i .cone rock. This rod. has weathered into
<br />re ctangu .r bloci.s that part irrto seal] .'r agnents
<br />and ch s.
<br />_~.;rf ace runoff of Penrose soils is rapid be-
<br />e _e tte>~ are <_teep. Thee have a ]ow water-F:oldinF
<br />pa est.; and the wat et erasion tacard is high.
<br />All of the acreage is used as range. The sparse
<br />native vegetation includes bigelow sage, needlegrass
<br />blue gzama, side-oats grams, squirreltail, three-
<br />awn, Indian ricegrass, soak eueed, and yv cca.
<br />7ypicel profile of Penrose rhannery loam, 1 to 25
<br />percent slopes, in an area of range, 0.3 mile north
<br />24
<br />and 0.25 mile east of the southrest corner of sec.
<br />26, T. 24 5., R. 54 a'.
<br />A--O m 5 inches, grryish-brown (lOYR 5/2) thannery
<br />to®, dark grryish brorn (70YR 1/2) when ist
<br />teak, fine and mediim, crab structure oft
<br />then dry, very friable when mist; ers
<br />cover about SO percent of surface comprise
<br />about 30 percent of the volume; ugly cal-
<br />careous; clear, irxgular Dam
<br />FC--S to 11 inches, light brownish ay (]Ol'R 6/2j
<br />ch annery loam, dark grayis town (]O1'R 4/2)
<br />then mist; weak, very f' e, crumb structure;
<br />soft then dry, very fr' le xhen mist; roots
<br />abundant to depth of inches, and common to
<br />a depth of 12 inch ehannen comprise about
<br />40 percent of th volume; strongly calcareous;
<br />gradual, ravy ndary.
<br />R--11 to 60 inches platy, flaggy, fractured lime-
<br />stone of t Fort Hayes formation.
<br />The depth o bedrock ranges from about 6 io ]B
<br />inches.
<br />Penro soils are associated with Mi nnequa soils,
<br />They far from those soils in being very shallow'
<br />ors llow rather than moderately deep, end they are
<br />more sloping.
<br />Penrose ch annery loam, ] to 25 percent slopes
<br />(PeE).--This soil has the profile described as
<br />typical for the series. This soil also includes
<br />areaz of channer-covered steep escarpments of shale
<br />outcrop iamedi at ely below ]edges of limestone out-
<br />crop.
<br />The principal inclusions are Mi nnequa loam
<br />Manuel silt loam. Taken together, these inc ions
<br />account For about ZO percent of each mappe tea.
<br />This soil unit has rapid surface runo and a
<br />low water-holding capacity. The range ants do
<br />not gran vigorously'. If the range i overgrazed in
<br />dry years, it is very slow to taco r, even in wet
<br />years. (t+onirrigated tapabili t~~ .it Vlls-3; Lime-
<br />stone Breaks range site)
<br />The Rocky Fords ies consists of deep, we1]-
<br />drained, nearly 'el, silty scils that pace ;Y.ici.
<br />surface ]a)~e rs ~lted by c~ddy~ irri gati er. wa;er
<br />(pl. 3, top) They are the west exte^s ive soil se-
<br />ries of th irrigated land.
<br />In a t ica] profile the fertile surface la}~e r,
<br />about ]P inches chi d., is grayish-brown silt. cla>
<br />loam that is cloddy and hard when dry and friable
<br />then moist. The upper ]7 inches of the sub stratur.~
<br />is pale-brown silt loan... It is easily penetrated b~~
<br />plant roots, air, and water. The suhstracur.. below
<br />a depth of 30 inches is pale-bras silt loam that
<br />normally becomes somewhat coarser textured as depth
<br />increases.
<br />Pocky Ford soils are fertile. They have a modez-
<br />ate to high water-holding capacity, lay tell for
<br />irrigation, and ere relatively easy to manage. Plant
<br />i
<br />i
<br />3
<br />'s
<br />~~
<br />i
<br />3
<br />
|