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Subsoil layer. Subsoil is the layer of soil under the topsoil on the surface of the ground. Like topsoil, it is composed of a variable mixture of small particles such as sand, silt and clay, but with a much lower percentage of organic matter and humus. The subsoil is labeled the B Horizon in most soil mapping systems.
Chintala Venkat Reddy (born 22 December 1950) is an organic farmer known for his soil and nutrient management techniques in farming. He is the first independent farmer in India to receive an international patent for his technique in soil swapping and soil fertility.
"Subsoil" is a short story by American writer Nicholson Baker, which first appeared in The New Yorker periodical on June 27, 1994. [ 1 ] The story is about a man who meets his doom after being assaulted and forced by attacking, sprouting potatoes that lure agriculturalists into their sleepy Krebs Cycle .
Dmytro Anatoliiovych Kashchuk (Ukrainian: Дмитро Анатолійович Кащук; born May 4, 1983) is a Ukrainian entrepreneur, investor, former head of the State Geologic and Subsoil Survey of Ukraine, and expert in the field of subsoil use. [1] [2]
Soil structure describes the arrangement of the solid parts of the soil and of the pore spaces located between them (Marshall & Holmes, 1979). [1] Aggregation is the result of the interaction of soil particles through rearrangement, flocculation and cementation.
Subsoiling is a slow operation and requires high power input: 60 to 100 horsepower (45 to 75 kW) to pull a single subsoil point through a hard soil. Typically, a subsoiler mounted on a compact utility tractor will reach depths of about 30 cm (12 in) and have only one thin blade with a sharpened tip.
Soil scientists use the capital letters O, A, B, C, and E to identify the master horizons, and lowercase letters for distinctions of these horizons. Most soils have three major horizons—the surface horizon (A), the subsoil (B), and the substratum (C). Some soils have an organic horizon (O) on the surface, but this horizon can also be buried.