It is said that lava contains many valuable plant nutrients and plants grow particularly well on solidified lava. Lava is also a particularly fertile soil for plant growth.
The use of lava pumice for horticulture is limited based on its serious deficiency in essential Calcium. In addition it is quite high in Potassium and Magnesium which make Calcium availability worse. I was mandated to use lava pumice in Hawaii ginger production systems but upon its poor performance made it use untenable. Another problem is these materials are too dense for container plantings. Not everything that is available has competitive usage qualities. The availability of minerals from pumic materials are also low.
Lava are not used as natural fertilisers because they are produced from high temperature volcanic eruption and solidified when cooled down. Therefore ,plant roots take up nutrients from soils in solutions form and not in solid form of the lava. There is a difference between available and non available nutrients in the soil. The nutrients in solid lava are not available to plants in that form
Lava are not used as natural fertilisers because they are produced from high temperature volcanic eruption and solidified when cooled down. Therefore ,plant roots take up nutrients from soils in solutions form and not in solid form of the lava. There is a difference between available and non available nutrients in the soil. The nutrients in solid lava are not available to plants in that form
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