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<br /> light clay loam, �or silty clay loam, but in places Representative profile of Nayden'loam, 2 to 6
<br /> there'is a very dark �ray or very dark grayish-brown percent slopes, in a cultivated field, SW1/d SW
<br /> ' loam layer of ove nvash up to 12 inches thick. 11�e MV1/4 sec. 20, T. ll8 N., R. 12 W.: ���
<br /> averaQe clay content of the B horizon is less tl�an
<br /> 35 percent. The B horizon ranges from weak to Ap--O to 7 inches, very dark gray (lOYR 3/1) lo�
<br /> stronQ� coarse, prismatic structure to moderate to light brownish gray. (lOYR 6/2) when d '
<br /> ' stronQ, vedium and coarse, suban�ular bldcky struc- ver� fine ry' N��'.
<br /> ture. The C horizon is dark olive a to li t � 81'anular stzvcture; friable; ��m,
<br /> gT Y � roots; neutral; ab napt, smooth boundary,
<br /> o2ive �ray. In places there are thin, coarse-tez- Blt--7 to 14 inches, dark yellowish-brown (lOYR q���
<br /> tured laye n in the C horizon. Reaction ran�es fran light clay loam; weak, fine, subangular blo
<br /> ' medivai acid to neutral in the A and B horizon. 11�e stnrcture; friable; few roots• few to con�pocky
<br /> C horizon is m.ildly alkaline and is slightly to fine, tubular pores; many, thick, li t n,
<br /> strongly calcareous, ish- ra � br0"n-
<br /> Hamel svils have a thicker A1 horizon than the g Y (IOYR 6/2) , porous coatings on faces
<br /> ' siailar Cordova soils. 'Ihey have a more develo g of peds; fer+, thin, very dark brown (lOYR 2�2�
<br /> P� clay filu�s on faces of peds; few fine shale
<br /> horizon that contains translocated clay than the fragments; slightly acid; clear, smooth
<br /> sinilar Glencoe soils and occur in drainageways boundary.
<br /> rather than in closed depressions. B22t--14 to 22 inches, yellowish-brown (lOYR S/4)
<br /> ' Hamel loam (Ha) .--'it�is nearly level soil occu ies light clay loam; very weak, fine, prismatic
<br /> 1-acre to 3-acre areas in short, narrow drain ewa s stn�cture parting to moderate to strong, medi-
<br /> a8 Y um and coarse, subangular blocky structure;
<br /> on side slopes and 5-acre to 30-acre areas in long, friable; few roots; many, fine, tubular pores;
<br /> ' winding drainageways between knolls and hills. common, thin, dark grayish-brown (lOYR 4/2)
<br /> Included in �apping were small areas of Glencce clay films on faces of peds; co�on, thin,
<br /> soils. Also included in places were small azeu of li ht-
<br /> Le Sueur soils that lie at the base of stee slo s. g �ay �lOYR 7/2) , porous coatings on
<br /> ' P Pe vertical faces of peds; about S percent coarse
<br /> If properly drained and managed, this soil is fragments; slightly acid; clear, smooth boimd-
<br /> suited to all crops commonly grown in the county, az.�,.
<br /> Tile drainage and good outlets are needed. 'Ihis B23t--22 to 31 inches, light olive-brown (2.5Y S/4)
<br /> soil is well suited to corn and soybeans. Because loam; very weak, medi�, prismatic structure
<br /> ' azeas of this soil aze so irregular in shape, it is parting to moderate, coarse, subangular blocky
<br /> generally farmed xith the sunounding soils. (Ca- stivcture; friable; few roots•
<br /> pability im it IIr-1; woodland ou S• buildin site � �Y, fine,
<br /> group 10) � P ' g . tubular pores; common, thick, very dark gray-
<br /> ' _ ish-brown (lOYR 3/2) clay films on faces of
<br /> peds; about 5 percent coarse fragments;
<br /> - slightly acid; clear, smooth boundary.
<br /> _ Hayden Series _ B3t--31 to 36 inches, light olive-brown (2.SY 5/4)
<br /> , 'Ihe Hayden series consists of dee well-dnined loam; weak, coarse, subangular blocky struc-
<br /> P� � ture; friable; co�on, fine, tubular pores;
<br /> loamy soils that farmed in loamy glacial till. 7hese coumon, thick, very dark grayish-brown (lOYR
<br /> gently sloping to very steep soils are in comez 3/2) c�ay films on faces of peds; about 5 per-
<br /> azeas on knolls and hillsides. 'Ihe hills and ]rnolls cent of volume consists of very dark brown
<br /> ' aze S to 300 acres in size and lie S to 80 feet (lOYR 2/2) clay fillings in root charmels;
<br /> above the surrounding drainageways and depressions, about S ercent coarse fra
<br /> Slopes -aze mainly complex, range from 2 to 35 r- P gments; neutral;
<br /> P� clear, smooth boundary.
<br /> ceny and are 75 to 250 feet long. There are stones C1--36 to 48 inches, olive-brown (2.5Y S/4) loam;
<br /> ' and boulders neaz the surface. 'Ihe native vegeta- weak, coarse, subangular blocky struct�e; fri-
<br /> tion was mixed hardwood forest. able; few fine.pores; few black (lOYR 2/1)
<br /> In a representative profile, the surface layez is clay fillings in root channels; few red iron
<br /> very dark gray loam about 7 inches thick. 'Ihe sub- concretions and few black manganese concre-
<br /> t soil is about 29 inches thick. 'Ihe upper part is tions; few light-gray lime concretions;
<br /> dark yellowish-brown and yellowish-brown light clry about 5 ercent coarse fra
<br /> loaa. The lower part is light olive-brown loaa. The p S�n�; mildly
<br /> tmderlying material is ligh t olive-bra+n, calcareous alkaline; strongly calcareous; clear,
<br /> ' loaa. smooth boundary,
<br /> � C2--48 to 60 inches, li�t olive-brown (2.SY S/4)
<br /> Hayden soils have high available aoisture capu- loam• cortmwn fine
<br /> ity and voderate peraeability. Internal draina is ' � , P�minent� yellowish-
<br /> � brown (lOYR S/8) mottles; weak cleavage planes
<br /> medi�. The water table is at a depth below 5 feet friable; few fine tubular pores; few, fine,
<br /> , in all seasons. Hayden soils have low organic-tatter very dark grayish-brown (lOYR 3/2) clay fill-
<br /> content and mediws natural fertility. The subsoil ings in root channels of upper part; co�on
<br /> in most places is high in phosphonis. Roots pene- white lime concretions and concentrations;
<br /> trate the soil deeply and easily. The °surface laver taildly alkaline; strongly calcareous.
<br /> ' is easily eroded.
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