(Agriculture) ( tr) to plough (land) to a depth below the normal ploughing level and so break up the subsoil. Minerals are bits of rock , and organic material is the remains of living things that have died. Parent material - The parent material layer is considered the "C" horizon. Also called: undersoil the layer of soil beneath the surface soil and overlying the bedrock. [usu. Soil is not as solid as rock. [tr.] Most people chose this as the best definition of subsoil: The layer or bed of earth... See the dictionary meaning, pronunciation, and sentence examples. power or ability to act or to influence people, events, decisions, etc. Common crawl. Chemical decomposition in which a compound is split into other compounds by reacting with water. subsoil: Webster's New World College Dictionary, 4th Ed. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Example sentences with "subsoil explorations", translation memory. Definition. Also called: undersoil. Subsoil is the layer of soil under the topsoil on the surface of the ground. This article was most recently revised and updated by, https://www.britannica.com/science/subsoil. Created. Humus remains and clay accumulate in subsoil, but the teeming macroscopic and microscopic organisms that make the topsoil rich with organic matter spend little time in the subsoil layer. verb. Also called: undersoil the layer of soil beneath the surface soil and overlying the bedrock. Humus remains and clay accumulate in subsoil, but the teeming macroscopic and microscopic organisms that make the topsoil rich with organic matter spend little time in the subsoil layer. • Deep ploughing puts subsoil on top and buries the living topsoil below the optimum depth. subsoil definition: 1. the layer of soil that is under the surface level 2. the layer of soil that is under the surface…. Subsoil definition is - the stratum of weathered material that underlies the surface soil. Soil is one of the principal substrata of life on Earth, serving as a reservoir of water and nutrients, as a medium for the filtration and breakdown of injurious wastes, and as a participant in the cycling of carbon and other elements through the global ecosystem. • v. Subsoil is the layer of soil under the topsoil on the surface of the ground. Depending on the region in which your farm is located, you could have one of many types of soils. the raising or rising of a body in air by supernatural means. translation and definition "subsoil explorations", Dictionary English-English online. Level. subsoil In-row tillage methods for subsoil amendment and starter fertilizer application to conservation tilled-grain sorghum. Clay-based subsoil has been the primary source of material for adobe, cob, rammed earth, wattle and daub, and other earthen construction methods for millennia. b. Stripping topsoil while clearing land for crop growth or commercial development exposes the subsoil and increases the rate of erosion of soil minerals. It has many small spaces, called pores, that hold water and air. Subsoil - Subsoil is considered the "B" horizon. Our editors will review what you’ve submitted and determine whether to revise the article. ... Subsoil: Definition. The primary criterion is the need to support abutments on relatively flexible piles. Topsoil definition is - surface soil usually including the organic layer in which plants have most of their roots and which the farmer turns over in plowing. From Longman Dictionary of Contemporary English subsoil sub‧soil / ˈsʌbsɔɪl / noun [uncountable] HEG TAS the layer of soil between the ground’s surface and the lower layer of hard rock Examples from the Corpus subsoil • The type of subsoil upon which the foundations are built is a very influential factor. Organic matter varies in quantity on different soils. 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. Subsoil consists of a variable mixture of small particles such as sand, silt and/or clay. TAKE THE QUIZ TO FIND OUT Subsoil, Layer (stratum) of earth immediately below the surface soil, consisting predominantly of minerals and leached materials such as iron and aluminum compounds. subsoil. ( as modifier ): a subsoil plough. The state of your soil directly correlates with that which you are able to grow from it. From Cambridge English Corpus The soil type was a sandy-loam with a surface … Supporting users have an ad free experience! the layer of soil between the ground’s surface and the lower layer of hard rock Examples from the Corpus subsoil • The type of subsoil upon which the foundations are built is a very influential factor. subsoil. (transitive) to plough (land) to a depth below the normal ploughing level and so break up the subsoil. Soil Culture J. H. Walden Often where lime has been used in excess, it has sunk to the subsoil, where it remains inactive. Below the subsoil is a layer of partially … the layer of soil beneath the surface soil and overlying the bedrock. Let us know if you have suggestions to improve this article (requires login). Definition of subsoil noun in Oxford Advanced Learner's Dictionary. Amelioration of subsoil compaction is much more expensive and less effective than loosening compacted topsoils. This layer is made primarily of clay, iron, and organic matter which accumulated through a process called illuviation. 2. vb. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The Company fulfils State orders for exploration of oil and gas deposits and other mineral resources; cooperates actively with individual customers. Updates? Soil is a mixture of minerals and organic material that covers much of Earth’s surface. Topsoil is the upper, outermost layer of soil, usually the top 5–10 inches (13–25 cm).It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Definition of Soil. Corrections? ( ˈsʌbˌsɔɪl) n. (Geological Science) a. Subsoil is the layer (or stratum) of soil immediately underneath the surface topsoil.. Topsoil, subsoil and bedrock work in harmony to produce a fertile soil source for the planet's flora and fauna. Learn more. It often lacks the organic matter and humus content of topsoil. Directly beneath the surface soil (topsoil) lies a layer known as Subsoil. Subsoil definition, the bed or stratum of earth or earthy material immediately under the surface soil. Thus it is worthwhile to give your soil the time and attention it needs. Soil Horizon: Definition. Subsoil is an essential part of most soil profiles, providing moisture storage and reducing the rate of water run-off. See more. Below the subsoil is a layer of partially disintegrated rock, and underlying bedrock. ( as modifier ): a subsoil plough. a. It specifies requirements for multipurpose subsoil which is fit for the majority of needs and also specific purpose subsoils that are acidic or calcareous for specialist use where acidic or calcareous soil profiles are required. Most people chose this as the best definition of subsoils: Plural form of subsoil.... See the dictionary meaning, pronunciation, and sentence examples. Science. In the latter part of autumn the soil will often become too wet, therefore, the time to subsoil is early autumn, says Mr Wright. b. sub‧soil /ˈsʌbsɔɪl/ noun [ uncountable] HEG TAS. Coarse sand, the other ingredient in most of these materials, is also found in subsoil. The soil is a natural medium that acts as a basement for all other materials and living entities. Although by no means sterile, subsoil is relatively barren in terms of soil organisms compared to humus-rich topsoil. 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. 3. Tweet . It also specifies requirements for sampling and analysing subsoil. This layer is called the parent material because the … The definition of subsoil . subsoil. Timing is everything with subsoiling. Get the timing right. Plow deep and subsoil all wheat-lands, except those on a gravelly or sandy bottom. b. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms.. Subsoil Drainage - Subsoil drainage details, clean out points, discharge point.. Subsoil: Soil beneath the level of subgrade; soil beneath the topsoil layers of a naturally occurring soil profile, typified by less than 1 percent organic matter and few soil organisms. Source for information on subsoil: The Oxford Pocket Dictionary of Current English dictionary. Omissions? vb. subsoil explorations. Term. soil / ˈsəbˌsoil/ • n. the soil lying immediately under the surface soil. The B-horizon of soil. Topsoil is composed of mineral particles, organic matter, water, and air. It is the weathered soil layer extending between the natural topsoil and the unweathered basal layer (geological parent material) below, or similar material on which topsoil can be spread. 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