ando soil
Quick Summary
Andosols are a unique soil group classified by the Food and Agriculture Organization (FAO). These soils are characterized by their high porosity and dark color, forming from volcanic materials like ash and pumice. Andosols are typically found in wooded, high-altitude regions bordering the Pacific Ocean, though they exist globally in smaller quantities, covering less than 1% of the Earth's soil area.1
A key feature of Andosols is their high aluminum content, which binds inorganic phosphate, making it unavailable to plants. While they possess excellent water retention and nutrient capacity, this strong reaction with phosphate presents challenges for agriculture without fertilization. Andosols share similarities with the Andisol soil order in the U.S. Soil Taxonomy.1
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