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It is used to condition soils either by applying it directly to the land, or by providing a source of humic acid or potassium humate for application. The carbon geosequestration potential of Leonardite, particularly to rapidly accelerate microbial action to lock up and retain carbon in soils, provides the basis for extensive research in Victoria on the organic fertilising aspect of brown coal.
Lignosulfonate is used in agriculture as an analogue of humic substances. As a soil conditioner, it is mainly used to enhance the absorption and retention of fertilizers and other nutrients. [7] It is able to chelate minerals while remaining bio-degradable, an improvement compared to EDTA. [8]
The most common use of soil conditioners is to improve soil structure. Soils tend to become compacted over time. Soil compaction impedes root growth, decreasing the ability of plants to take up nutrients and water. Soil conditioners can add more loft and texture to keep the soil loose. [13]
Soil sealing or soil surface sealing is the loss of soil resources due to the covering of land for housing, roads or other construction work. [1] Covering or replacing the topsoil with impervious materials like asphalt and cement as a result of urban development and infrastructure construction paired with compaction of the underlying soil layers results in the mostly irreversible loss of ...
Soil bulk density, when determined at standardized moisture conditions, is an estimate of soil compaction. [3] Soil porosity consists of the void part of the soil volume and is occupied by gases or water. Soil consistency is the ability of soil materials to stick together. Soil temperature and colour are self-defining.
Other soil conditioner uses: Gypsum reduces aluminium and boron toxicity in acidic soils. It also improves soil structure, water absorption, and aeration. [40] Soil water potential monitoring: a gypsum block can be inserted into the soil, and its electrical resistance can be measured to derive soil moisture. [44]
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SahysMod - Saline seep - Salinity in Australia - Salt marsh - Salting the earth - SaltMod - San Joaquin (soil) - Sand - Sand boil - Sandbag - Scobey (soil) - Seitz (soil) - Serpentine soil - Shear strength (soil) - Shear strength test - Shrub swamp - Silt - Slope stability - Slump - Sodium adsorption ratio - Soil - Soil acidification - Soil amendment - Soil and water assessment tool - Soil ...