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Not much organic matter
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- Clay is one of the three basic soil types. It is mostly made up of very fine mineral particles, measuring only 0.002 mm in diameter (for comparison, sand particles range between 0.05 and 2.0 mm in diameter) and not much organic matter.
www.thespruce.com/understanding-and-improving-clay-soil-2539857
Jun 24, 2024 · In clay soil, the bulbs of spring flowers simply rot over the winter, for example. However, it is possible to improve clay soil by adding organic matter, such as bark, sawdust, peat moss, composting materials, or manure to the soil.
- Colleen Vanderlinden
Soil organic matter levels can be maintained with lower additions of organic residues in high-clay-content soils with restricted aeration than in coarse-textured soils because of the slower decomposition.
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Apr 24, 2023 · Organic matter is the best way to amend clay soil: It lightens the soil texture, discourages compaction, adds nutrients, improves drainage and aeration, moderates soil temperature, and provides pore space, essential to plant growth.
Jun 5, 2024 · Types and Benefits: Incorporating organic matter such as compost, leaf mold, or well-rotted manure can dramatically improve the structure of clay soil. These materials help separate the fine clay particles, thereby enhancing aeration and drainage.
The CEC of soils varies according the clay %, the type of clay, soil pH and amount of organic matter. Pure sand has a very low CEC, less than 2 meq/100 g, and the CEC of the sand and silt size fractions (2 µ m/2 mm) of most soils is negligible.
Oct 1, 2014 · •. Clay content did not change Q10 of OM decomposition in the artificial soils. 1. Introduction. Soil contains the largest portion of organic carbon (∼1500 Pg C in the first meter of soil) in global terrestrial ecosystems (Post et al., 1982, Batjes, 1996, Jobbágy and Jackson, 2000) and is therefore of great importance to the global carbon balance.
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Characteristics. •. Clay soils feel very sticky and rolls like plasticine when wet. •. They can hold more total water than most other soil types and, although only about half of this is available to plants, crops seldom suffer from drought. •.
