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Soil retrogression and degradation are two regressive evolution processes associated with the loss of equilibrium of a stable soil.Retrogression is primarily due to soil erosion and corresponds to a phenomenon where succession reverts the land to its natural physical state.
Bioavailable phosphorus (available to soil life) is the element in soil that is most often lacking. Nitrogen and potassium are also needed in substantial amounts. For this reason these three elements are always identified on a commercial fertilizer analysis.
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment.
A wide variety of materials have been described as soil conditioners due to their ability to improve soil quality. Some examples include biochar, [3] bone meal, blood meal, coffee grounds, compost, compost tea, coir, manure, [4] straw, peat, sphagnum moss, vermiculite, sulfur, lime, hydroabsorbant polymers, [5] and biosolids.
Tanah Datar Regency is a landlocked regency (kabupaten) in West Sumatra province, Indonesia. The regency has an area of 1,337.1 km 2 and had a population of 338,484 at the 2010 Census, [ 3 ] which rose to 371,704 at the 2020 Census. [ 4 ]
Thumbtack-like Tribulus terrestris burs are a hazard to bare feet and bicycle tires.. After the flower blooms, a fruit develops that easily falls apart into five burs. [3] The burs are hard and bear two to four sharp spines, [3] 10 mm (0.39 in) long and 4–6 mm (0.16–0.24 in) broad point-to-point.
The fallacy of composition is an informal fallacy that arises when one infers that something is true of the whole from the fact that it is true of some part of the whole. A trivial example might be: "This tire is made of rubber; therefore, the vehicle of which it is a part is also made of rubber."
Asphalt batch mix plant A machine laying asphalt concrete, fed from a dump truck. Asphalt concrete (commonly called asphalt, [1] blacktop, or pavement in North America, and tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. [2]