Search results
Results from the WOW.Com Content Network
Feebly hydraulic lime (NHL 2) is used for internal work and external work in sheltered areas. Feebly hydraulic lime contains up to 10% clay / clay mixed with other impurities. It might take one week or more to set after the addition of water. Setting is the process of permanently taking the shape into which lime has been moulded.
Lime can improve crop yield and the root system of plants and grass where soils are acidic. It does this by making the soil more basic, allowing the plants to absorb more nutrients. Lime is not a fertilizer but can be used in combination with fertilizers. [3] [4] Soils become acidic in several ways.
Artificial hydraulic lime is made by adding forms of silica or alumina such as clay to the limestone during firing, or by adding a pozzolana to pure lime. [13] Hydraulic limes are classified by their strength: feebly, moderately and eminently hydraulic lime. Feebly hydraulic lime contains 5-10% clay, slakes in minutes, and sets in about three ...
Prepared agricultural lime staged near a field in the UK. Liming is the application of calcium- (Ca) and magnesium (Mg)-rich materials in various forms, including marl, chalk, limestone, burnt lime or hydrated lime to soil. [1] In acid soils, these materials react as a base and neutralize soil acidity.
The dense, twiggy growth and glabrous reddish shoots bear leaves 4–7.5 cm long, typically coarsely toothed with 3–5 lobes, superficially resembling ivy or maple leaves. The emergent leaves are bronze, turning glossy green in summer, and bright yellow in autumn. [2] The greenish-white flowers are borne in clusters of 6–20 in June and July. [3]
The trees favour good, loamy sites, but can also be found on sandy, infertile soils, and are not thought to be drought resistant. Dormant shoots of Tilia cordata can resist winter frost temperatures as low as −34 °C (−29 °F). [8] Processed, dyed small-leaved lime (Tilia cordata) pollen.
It is widely grown as an ornamental tree throughout Europe. The cultivar 'Brabant' has a strong central stem and a symmetrical conic crown. The cultivar 'Petiolaris' (pendent or weeping silver lime) differs in longer leaf petioles 4–8 cm long and drooping leaves; it is of unknown origin and usually sterile, and may be a hybrid with another Tilia species.
The name "lime", possibly a corruption of "line" originally from "lind", has been in use for centuries and also attaches to other species of Tilia. [3] It is not, however, closely related to the lime fruit tree, a species of citrus. The specific epithet platyphyllos (greek: πλατύφυλλος) means in greek "with broad leaves". [4]