The Nevėžis Plain ( Lithuanian : Nevėžio žemuma ) is a plain (lowland) in central Lithuania , and makes a part of the Central Lithuanian Plain . Its northern limit is marked by the Nevėžis and Lėvuo watershed, while other limits are marked by small ridges (the Vilkija Ridge , Viešintos Ridge , Kavarskas Ridge, Krakės Ridge and others).
7-550: There are three levels of the Nevėžis Plain: Traupis level (altitude 80-90 meters), Pagiriai level (70-80 meters) and the Nevėžis river level (65 meters). River density is high but rivers themselves are slow, sink during the summer. Typical soil is moraine loam with a tiny layer of sand . The Nevėžis Plain is heavily cultivated area ( wheat , sugar beet , rapeseed , barley , potatoes ) but significant part (20-30 %)
14-705: Is about 40–40–20% concentration of sand–silt–clay, respectively. These proportions can vary to a degree, however, and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam. In the United States Department of Agriculture , textural classification triangle , the only soil that is not predominantly sand, silt, or clay is called "loam". Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt- and clay-rich soils, and are easier to till than clay soils. In fact,
21-416: Is compacted, depleted of organic matter, or has clay dispersed throughout its fine-earth fraction. For example, pea can be cultivated in sandy loam and clay loam soils, but not more compacted sandy soils. Loam (the high-humus definition, not the soil texture definition) may be used for the construction of houses, for example in loam post and beam construction. Building crews can build a layer of loam on
28-456: Is considered ideal for gardening and agricultural uses because it retains nutrients well and retains water while still allowing excess water to drain away. A soil dominated by one or two of the three particle size groups can behave like loam if it has a strong granular structure, promoted by a high content of organic matter. However, a soil that meets the textural (geological) definition of loam can lose its characteristic desirable qualities when it
35-414: Is covered by forests ( birch , aspen , oak , ash , pine , spruce trees). Loam Loam (in geology and soil science) is soil composed mostly of sand ( particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9 × 10 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9 × 10 in)). By weight, its mineral composition
42-532: Is suitable for growing most plant varieties. Bricks made of loam, mud, sand, and water, with an added binding material such as rice husks or straw, have been used in construction since ancient times. Loam soils can be classified into more specific subtypes. Some examples are sandy loam, silt loam, clay loam, and silty clay loam. Different soil phases have some variation in characteristics like stoniness and erosion that are too minor to affect native vegetative growth but can be significant for crop cultivation. Loam
49-424: The primary definition of loam in most dictionaries is soils containing humus (organic content) with no mention of particle size or texture, and this definition is used by many gardeners. The different types of loam soils each have slightly different characteristics, with some draining liquids more efficiently than others. The soil's texture, especially its ability to retain nutrients and water , are crucial. Loam soil
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