GARDENING FOR NUTRITION 101 . Session 12 Soils Part III. Organic Matter

Session 12 Soils Part III. Organic Matter 

 Please click on the link below to view Session 12

             https://youtu.be/5gCjwkqwGDY






         Molecule of EDTA (Ethylene Diamine Tetra Acetic Acid)

                    

Section of a typical humic acid molecule

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