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Soil acidification. Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid, such as nitric acid, sulfuric acid, or carbonic acid. It can also be a compound such as aluminium sulfate, which reacts in the soil to release protons.
Lamium galeobdolon, the yellow archangel, is a species of flowering plant in the mint family Lamiaceae. It is native to Europe and western Asia but it is widely introduced in North America and elsewhere. It is the only species in the genus Lamium with yellow flowers. Another common name for this species is golden dead-nettle.
Aluminium is present in all soils to varying degrees, but dissolved Al 3+ is toxic to plants; Al 3+ is most soluble at low pH; above pH 5.0, there is little Al in soluble form in most soils. [19] [20] Aluminium is not a plant nutrient, and as such, is not actively taken up by the plants, but enters plant roots passively through osmosis ...
Yet security experts say the U.S. must find a way to keep the aluminum plants open. The strong, lightweight metal is used to make more fuel-efficient cars and airplanes as well as solar panels and ...
Aluminium concentrations in young leaves, mature leaves, old leaves, and roots were found to be 8.0, 9.2, 14.4, and 10.1 mg g1, respectively. ... Plants sprayed with ...
Aluminum can be toxic to plants when the soil is acidic with a pH of 5 or below. Half of the world’s agricultural lands experience this acidity so aluminum is a limiting factor of a crop’s success. Plants can become resistant to Al by methods such as internal detoxification with carboxylate ligands or sequestration of Aluminum complexes. [4]
Red mud is a side-product of the Bayer process, the principal means of refining bauxite en route to alumina. The resulting alumina is the raw material for producing aluminium by the Hall–Héroult process. [3] A typical bauxite plant produces one to two times as much red mud as alumina.
Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al 3+ is small and highly charged; as such, it has more polarizing power, and bonds formed by aluminium have a more covalent character.