Combining Lava Rock gravel with organic materials in compost is a great way to solve application problems and speed up the process. Don't forget a handful of soil to inoculate with organisms. Lava Gravel improves aeration and structure and therefore prevents rotting. Gravel is assimilated even more quickly in compost than in poor soils.
Compost and Lava gravel are a symbiotic combination: the compost provides an excellent medium for the "microorganism population explosion" promoted by lava&soil.By boosting beneficial bacteria numbers, you are able to unlock more nutrients for your plants. ,The Lava gravel will not only help create more organic matter, but will also help hold it in place, reduce odors and conserve it.
Hamaker says "As long as the soil is neutral [in pH] or close to it, microorganisms will control what goes into the plant roots. These controls are off when the soil is acid or acidic chemicals are added." Agrolav it's pH is 6,5-7,5, which is to say neutral.Incorporating lava rocks into garden's soil is easy. When mixing soil components adding enough lava rock to make up 20-25% of the total soil mix.
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Hydroponics can also benefit from lava rocks by using the as a growing medium.