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A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds .
Soil type greatly affects the efficacy of tile systems, and dictates the extent to which the area must be tiled to ensure sufficient drainage. Sandier soils will need little, if any, additional drainage, whereas soils with high clay contents will hold their water tighter, requiring tile lines to be placed closer together.
If your garden’s soil drainage needs to be improved, perlite can help. “For example, heavy clay soils retain water for a long time, so perlite is often used to help improve drainage ...
The impacts of drainage and agricultural production cause the loss of organic matter in muck soils through erosion, oxidation, and other processes collectively called "subsidence." Agricultural practices such as cover cropping and reduced tillage can significantly reduce subsidence but can not reverse it.
Soil Survey of Porter County, Indiana; USDA, Soil Conservation Service, Purdue University, Agricultural Experiment Station, IDNR, Soil and Water Conservation Committee; 1976 Kankakee Project: Sand Islands Reveal new, Old Clues, VU Professor finds surprising evidence for origin of dunes ; Charles M. Bartholomew; Post Tribune, July 6, 2008
This can be partially overcome by surrounding the pipes with gravel. However, with time even the gravel becomes choked with soil/silt, so in the latest practice, the gravel is surrounded with a geotextile material which filters out soil particles. Ideally, land drains are laid with access points so that high pressure water jetting is possible ...
The use of soil tests, coupled with the corresponding provisions, can alleviate issues of nutrition and irrigation that can result from non porous Ultisol. [4] Soil tests help indicate the pH, and red clay soil typically has a low pH. [5] The addition of lime is used to help to increase the pH in soil and can help increase the pH in Ultisol as ...
Recharge can help move excess salts that accumulate in the root zone to deeper soil layers, or into the groundwater system. Tree roots increase water saturation into groundwater reducing water runoff. [3] Flooding temporarily increases river bed permeability by moving clay soils downstream, and this increases aquifer recharge. [4]