Why organic is not enough
Here are a couple of excerpts from the article in the link below. Some interesting info there for organic gardeners. This info about minerals is very interesting to me as my research has shown that many foods lack minerals because of modern growing practices and this leads to many diseases.
"Organic matter, or being organic, in the sense of not using chemicals or of letting nature take its course, is not enough. In most cases you need to augment the soil with minerals, which is why organic is not enough."
"Here is the important point: organic matter (or humus) is critical for growing crops. It should never be below 3%, but it also should not be above 6%. Above the ideal of 5%, more is not better; generally; it is harmful to the crop and harmful to your health because it will be minerally or nutrient deficient especially if you don't add any mineral fertilizers. Also it will give the microbes too much carbon to process and they won't leave any food for your plants until they are done. Microbes eat first."
Here is a link that might be useful: article