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What is the difference between organic and inorganic fertilizers?

By Matt LeBannister     26 October 2017 


Organic fertilizers 

Organic fertilizers are derived from natural, organic compounds such as compost, manure, and worm castings.


Inorganic fertilizers

Inorganic fertilizers are created using inorganic compounds made through chemical processes. As far as your plants are concerned, organic and inorganic nutrients are relatively the same.


They can have virtually the same nutrient levels, and at a molecular level, these nutrients are the same. Many organic fertilizers need symbiotic fungi and bacteria to break them down before the fertilizer is readily available, while others are pre-digested and instantly available to your plants. Some people find that organic nutrients allow more sludge to build up in their reservoir. Just remember, it is not safe to use hydrogen peroxide with organic nutrients, as it will kill off all the beneficial fungi and bacteria.