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Ash is the solid residue left over from burning a range of materials, such as wood, charcoal, plants, and animals. It consists of small particles of minerals and other materials that have been released from combustion. Ash is commonly used in agriculture, forestry, and horticulture in a number of ways, including as fertilizer, soil amendment, and mulch.
Ash is generally used in agriculture and forestry as a soil amendment, specifically for its high concentrations of potassium, calcium, magnesium, and phosphorus. In horticulture, ash is used in landscaping to add nutrients to soil and increase water retention in sandy soils. It is also used in animal feed as a source of minerals.
Ash is found in various forms depending on the source. Wood ash is made up of calcium, magnesium, phosphorus, and potassium – all vital nutrients for plants. Charcoal ash is primarily composed of potassium, calcium, and magnesium, as well as smaller amounts of phosphorus, iron, and aluminum. Animal ash is composed of calcium, phosphorus, potassium, and trace amounts of other minerals.
The minerals found in ash have a number of health benefits. Potassium helps to regulate blood pressure, magnesium helps to relax muscles, and calcium helps to maintain healthy bones. Ash also contains a range of trace minerals, such as iron and copper, which are essential for the body's proper functioning.
- Ash is one of the oldest used materials by humans, and has been used since the Paleolithic era.
- Ash is a natural way to add essential nutrients to soil and is an environmentally-friendly alternative to chemical fertilizers.
- Ashes from different sources contain varying levels of minerals, making them better suited for different applications.
Other non-chemical soil amendments include compost, manure, and garden lime. All of these options are natural and provide essential nutrients to plants, but may not have the same mineral content as ash.
