What does Spodosol mean?
Spodosols (from Greek spodos, “wood ash”) are acid soils characterized by a subsurface accumulation of humus that is complexed with Al and Fe. These photogenic soils typically form in coarse-textured parent material and have a light-colored E horizon overlying a reddish-brown spodic horizon.
What are Ultisols used for?
Because of the favorable climate regimes in which they are typically found, Ultisols often support productive forests. The high acidity and relatively low quantities of plant-available Ca, Mg and K associated with most Ultisols make them poorly suited for continuous agriculture without the use of fertilizer and lime.
Where are Ultisols found?
Ultisol soils can be agriculturally productive with inputs of lime and fertilizers. Large areas of Ultisol are found in the southeastern USA, China, Indonesia, South America, and equatorial regions of Africa.
Where are Histosols found?
Most Histosols occur in Canada, Scandinavia, the West Siberian Plain, Sumatra, Borneo and New Guinea. Smaller areas are found in other parts of Europe, the Russian Far East (chiefly in Khabarovsk Krai and Amur Oblast), Florida and other areas of permanent swampland.
Where are Ultisols found in the US?
They are in Oregon and Washington and also occur in California and Puerto Rico. They commonly receive high rainfall but also have a moisture deficit during some season. The vegetation was mostly coniferous forest in the Northwest and rain forest in the tropics.
What is the characteristics of Ultisols?
Ultisols are found in geologically old landscape settings. They are characterized by a humus-rich surface horizon (the uppermost layer), by a layer of clay that has migrated below the surface horizon, and by a nutrient content low in available calcium, magnesium, potassium, and sodium.
How Ultisols are formed?
Formation: Ultisols form through the processes of clay mineral weathering. Clays, with the possibility of oxides, accumulate in the B subsurface horizon. Ultisols are not as highly weathered as Oxisols. Generally, base-cations, such as calcium, magnesium, nitrate, and potassium have been leached.
What are Ultisols made of?
What is BRIS land?
The acronym BRIS stands for beach ridges interspersed with swales. The swales are found in between the ridges; they sit in the depression areas, and are therefore inundated by water for most part of the year. It is known that the soils on the beach ridges are sandy (with > 95% sand) up to 150 cm of the soil profile.
How do you manage bris soil?
The best mulching materials was paddy straw at the rate of 6 t/ha which was applied immediately after planting. Sprinkler irrigation was the most suitable irrigation system on bris soil. Yield of 25 and 40 t/ha were obtained for chilli and tomato, respectively. However, the yields were dependent on the cropping season.
What type of soil is Inceptisols?
Inceptisols (from Latin inceptum, “beginning”) are soils that exhibit minimal horizon development. They are more developed than Entisols, but still lack the features that are characteristic of other soil orders.
What are Histosols used for?
Sphagnum and other types of fibrous material are extracted from Histosols for use in horticulture and as fuel. Larger areas of these soils have been managed for flood control, water purification, and wildlife preservation.
Are Ultisols good for farming?
What is spodosol soil?
Spodosols are ashy gray, acidic soils with a strongly leached surface layer. Their suitability for cultivation is limited to acid-tolerant crops and orchards, provided that sufficient lime and fertilizer are applied.
What is another word for spodosol?
spodosol Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia. Related to spodosol: spodic horizon, Ultisol, Entisol, Alfisol, Aridisol, Mollisol, Inceptisols spodosol (ˈspɒdəˌsɒl) n (Agriculture) a type of ashy soil
What is the difference between histosol and spodosol?
The histosol used was Dania Muck (Euic, hyperthermic, shallow Lithic Haplosaprists, pH 7.4, 65% organic matter) and the spodosolused was Immokalee Fine Sand (Sandy, siliceous, hyperthermic Arenic Alaquods, pH 7.8, 1.9% organic matter).
What is the difference between Alfisols and Spodosols?
Spodosols differ from Alfisols and Ultisols, both of which can exhibit bleached layers, by the absence of subsurface accumulations of translocated layer silicate clay; in addition, Spodosols generally develop under cooler climatic regimes.