| 摘要 |
A material composed primarily of coffee grounds, along with other commercial and industrial waste materials, in which the materials are uniformly pulverized, skillfully measured and combined to form a homogeneous particulate waste mixture. The composition is alternately turned and rested in a windrow or like apparatus for several months until natural aerobic thermophilic fermentation causes the material composition to have an overall pH level of 5.0 to 7.0 (with an optimum of 6.0), for the purpose of making the minerals latent in the material composition soluble, conducive to healthy plant life, and therefore useable as a plant growth medium.
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