Port Silt Loam is the state soil of Oklahoma. This type of soil is reddish in color due to the weathering of reddish sandstones, siltstones, and shales of the Permian period.
It is a medium-textured alluvial soil deposited along flood plains. Port Silt Loam can be found in 33 of the 77 counties in Oklahoma and covers around one million acres (4,000 km²). The name comes from the small community of Port, in Washita County, and the texture of the top soil (silt loam).
Clay is a type of fine-grained natural soil material containing clay minerals. Clays develop plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide.
Loam is soil composed mostly of sand, silt, and a smaller amount of clay. By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. These proportions can vary to a degree, however, and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam.
This is an index of articles relating to soil.
Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method. Soil texture has agricultural applications such as determining crop suitability and to predict the response of the soil to environmental and management conditions such as drought or calcium (lime) requirements. Soil texture focuses on the particles that are less than two millimeters in diameter which include sand, silt, and clay. The USDA soil taxonomy and WRB soil classification systems use 12 textural classes whereas the UK-ADAS system uses 11. These classifications are based on the percentages of sand, silt, and clay in the soil.
Soil morphology is the study of the formation and description of soil types within various soil horizons. C.F. Marbut championed reliance on soil morphology instead of on theories of pedogenesis for soil classification because theories of soil genesis are both ephemeral and dynamic.
Soil chemistry is the study of the chemical characteristics of soil. Soil chemistry is affected by mineral composition, organic matter and environmental factors. Back in the early 1850s a consulting chemist to the Royal Agricultural Society in England, named J. Thomas Way, performed many experiments on how soils exchange ions. As a result of his diligent and strenuous work, he is considered the father of soil chemistry. But after him, many other big-name scientists also contributed to this branch of ecology including Edmund Ruffin, Linus Pauling, and many others.
Jat Area is a term of Jute cultivation that indicates the inner North-Eastern part of Bangladesh. This geographical area comprises part of the districts of Dhaka, Mymensingh, Tangail, and Comilla of Bangladesh. The area annually receives fresh deposit of silts carried down by the flood water. Soils are acidic, the texture varies from sand loam to clay loam. According to commercial quality, the best quality Jute, the Jat type, grows in this area. Due to high quality jute in the world, Adamjee Jute Mills was established in this region at Narayanganj. Later, the mill became the largest jute mill in the world. However, the mill closed its doors in 2002.
Orovada series soil is the official state soil of Nevada. The soil series has an extent of 367,853 acres (148,865 ha), primarily in northern and central Nevada, and extending into southern Idaho and Oregon. They are common soils on semiarid rangeland with sagebrush-grassland plant communities. Orovada soils are arable, able to be cultivated, when irrigated and are considered prime farmland. Alfalfa for hay and seed, winter wheat, barley, and grasses for hay and pasture are the principal crops grown on these soils.
Fishing Creek is a 29.98-mile (48.25 km) long tributary of the Susquehanna River in Columbia County, Pennsylvania, in the United States. It joins the Susquehanna River near the census-designated place of Rupert and the town of Bloomsburg. The watershed has an area of 385 square miles (1,000 km2).
Steven's Creek Heritage Preserve is a nature preserve in the US State of South Carolina. It is managed by the South Carolina Department of Natural Resources. It covers 434 acres (1.76 km2) in McCormick County and Edgefield County, and was established to protect rare animal and plant species. Webster's Salamander and Miccosukee gooseberry are among the species which have few populations outside the preserve. The nearest population center is Clarks Hill, about two road miles (3–4 km) to the southwest.
San Joaquin is an officially designated state insignia, the state soil of the U.S. state of California.
Antigo soils are among the most extensive soils in Wisconsin. They occur on about 300,000 acres (1,200 km²) in the northern part of the State. Antigo soils are well-drained and formed under northern hardwood forests in loess and loamy sediments over stratified sandy outwash. The average annual precipitation ranges from 28 to 33 inches, and the average annual air temperature ranges from 39 to 45 °F. The soil series was named after the city of Antigo, Wisconsin.
Port is a small rural community in Washita County, Oklahoma, United States. The community had a post office from February 21, 1901, until February 29, 1940. It was named for a druggist, Mrs. F. M. Port. During the 1930s, the Port consolidated school district covered the largest area in Oklahoma, some ninety square miles.
Santa Maria Valley is an American Viticultural Area (AVA) which straddles the boundary of Santa Barbara and San Luis Obispo counties in California's multi-county Central Coast AVA. It was established on August 5, 1981 by the Alcohol and Tobacco Tax and Trade Bureau (TTB) as California's second oldest AVA. A portion of the AVA crosses the Cuyama River into the southernmost corner of San Luis Obispo County. The east–west orientation of the 152.3 square miles with a wide, open valley and rolling hills means cool winds and fog flow in freely from the Pacific Ocean, settling most noticeably in lower-lying areas. The result is a Mediterranean climate that lengthens the growing season and contributes to the eventual sugar/acid balance in the grapes from Santa Maria Valley's 7,500 acres (3,000 ha) cultivated vineyards. On January 28, 2011, the AVA was granted an 29.4 square miles expansion to its southern boundary.
In 1988, the Professional Soil Classifiers Association of Mississippi selected Natchez silt loam soil to represent the soil resources of the State. These soils exist on 171,559 acres of landscape in Mississippi.
The Jory series consists of very deep, well-drained soils that formed in colluvium derived from basic igneous rock. These soils are in the foothills surrounding the Willamette Valley of the United States. They have been mapped on more than 300,000 acres (1,200 km2) in western Oregon. They are named after Jory Hill, Marion County, Oregon, which itself is named for the Jory family, who settled in the area in 1852, after traveling along the Oregon Trail.
West Branch Chillisquaque Creek is a tributary of Chillisquaque Creek. Its watershed spans parts of Northumberland, Montour, Lycoming, and Columbia counties in Pennsylvania. West Branch Chillisquaque Creek is about five miles long. The creek is home to a number of tree species and herb species. There are also five main types of rock formations and four main types of soil in the creek's watershed.
The Holdrege silt loam is the state soil of Nebraska since 1979.
Francis Doan Hole, was an American pedologist, educator, and musician, best known for his contributions to mapping the extent of soils and their properties in the Wisconsin region and using inventive lectures and musical performances to communicate and popularize the field of soil science. His work and reputation earned him various titles of endearment in his community and among soil scientists worldwide, notably “Ambassador of Soils" and "Poet Laureate of Soil Science".
Baynes soil series is an imperfectly drained soil which occurs on eastern Vancouver Island and the adjacent Gulf Islands. Its parent material is eolian, fluvial or marine sand. The soil texture is usually loamy sand or sandy loam, but pure sand horizons may also be encountered. It is classified as Gleyed Dystric Brunisol or Gleyed Humo-Ferric Podzol.