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Ni
<br /> a! Soil Survey
<br /> 36
<br /> k ;
<br /> when wet and too hard
<br /> T. habitat. General management considerations include moisture content. It is too sticky
<br />! the clay loam surface layer and saturated soil when dry. Furrow, border, and sprinkler irrigation
<br /> conditions following rainy periods. The characteristic systems are suitable. Returning crop residue to the soil
<br /> plant community is mainly soft chess, filaree, and wild or regularly adding other organic material improves
<br /> oat. Trampling of the clay loam surface layer by fertility, minimizes crusting, and increases the rate of
<br /> F . livestock when the soil is too wet reduces productivity. water intake.
<br /> s, Grazing should be delayed until the soil is firm enough if this unit is used for homesite development, the
<br /> to withstand the trampling and the more desirable main limitations are the slow permeability, low strength,
<br /> Fforage plants have had an opportunity to set seed. The and the high shrink-swell.potential. On sites for septic
<br /> 4 unit responds well to range improvement practices, tank absorption fields, the slow permeability can be
<br /> fl,' such as seeding and applying fertilizer. The plants overcome by increasing the size of the absorption field,
<br /> selected for seeding should be those that meet the backfilling the trench with sandy material, and installing
<br /> seasonal requirements of livestock, wildlife, or both. long absorption lines. Properly designing buildings and
<br /> UN. After seeding is complete, grazing should be deferred roads can offset the limited ability of the soil to support
<br /> until the plants have set seed. a load. Properly designing foundations and footings an(
<br /> This map unit is in capability unit IVs-5 (MCRA-17), diverting runoff away from buildings help to prevent the
<br /> nonirrigated. It is in vegetative soil group A. structural damage caused by shrinking and swelling.
<br /> This map unit is in capability units Its-5 (MLRA-17),
<br /> y 118—Capay clay, 0 to 2 percent slopes. This very -irrigated, and IVs-5 (MLRA-17), nonirrigated. It is in
<br /> vegetative soil group C.
<br /> deep, moderately well drained, nearly level soil is in g p
<br /> r: interfan basins. It formed in alluvium derived from mixed
<br /> '! rock sources. Elevation is 30 to 200 feet. The average 119—Capay clay, 2 to 5 percent slopes. This very
<br /> dee moderately well drained, gently sloping soil is on
<br /> annual precipitation is about 10 inches, the average p, Y
<br /> p P
<br /> It formed in alluvium derived from mixed
<br /> annual air temperature is about 60 degrees F, and the alluvial fans.
<br /> average frost-free period is about 270 days. rock sources. The vegetation in areas that have not
<br /> Typically, the surface layer is grayish brown and dark been cultivated is mainly annual grasses and forbs.
<br /> rhe grayish brown clay about 20 inches thick. The subsoil to Elevation is 100 to 340 feet. The average annual
<br /> a depth of 60 inches is grayish brown, dark grayish precipitation is about 10 inches, the average annual aii
<br /> brown, dark brown, and pale brown clay. The soil is temperature is about 60 degrees F, and the average
<br /> �i calcareous below a depth of 20 inches. In some areas frost-free period is about 270 days.
<br /> the surface layer is silty clay. Typically, the surface layer is grayish brown and dai
<br /> Included in this unit are small areas of Stomar and grayish brown clay about 20 inches thick. The subsoil
<br /> l � Vernalis soils in the slightly higher landscape positions a depth of 60 inches is grayish brown, dark grayish
<br /> rl
<br /> jl�!1 and Willows soils in the slightly lower positions. Also brown, dark brown, and pale brown clay. The soil is
<br /> iGI l included are small areas of fine textured soils that have calcareous below a depth of 20 inches. In some areas
<br /> I, 1 a perched water table at a depth of 48 inches and may the surface layer is silty clay.
<br /> be saline-sodic in some part. Included areas make up Included in this unit are small areas of Carbona and
<br /> , r. about 15 percent of the total acreage. Calla soils in the slightly higher landscape positions ar
<br /> Permeability is slow in the Capay soil. Available Stomar soils in the slightly lower positions. Also
<br /> water capacity is high. The shrink-swell potential also is included, on toe slopes, are small areas of Capay sol
<br /> Nigh. The effective rooting depth is 60 inches or more. that have slopes of less than 2 percent. Included area:
<br /> II Depth to the water table is more than fi feet. Runoff is make up about 15 percent of the total acreage.
<br /> �{ slow, and the hazard of water erosion is slight. The rate Permeability is slow in the Capay soil_ Available
<br /> of water intake in irrigated areas is 0.1 inch per hour. water capacity is high. The shrink-swell potential also
<br /> far Most areas of this unit are used for irrigated crops or high. The effective rooting depth is 60 inches or more.
<br /> 1�;ie than 6 feet. Runoff is
<br /> ,, orchards. A few areas.are used for homesite Depth to the water table is mor
<br /> u;1, development. slow, and the hazard of water erosion is slight. The ra
<br /> This unit is suited to irrigated row, field, and orchard of water intake in irrigated areas is 0.1 inch per hour.
<br /> crops.,The main limitation is the slow permeability. Most areas of this unit are used for dryland grain of
<br /> Because of:the.restricted permeability, water for livestock grazing. A few areas are used for irrigate
<br /> applications,should be regulated so that the water does crops.
<br /> an on the.surface and damage the crops. The Where this unit is used for dryland grain crops, the
<br /> soil skiodld be cultivated only within a narrow range of main limitation is low rainfall during the growing seasc
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