Skepticism, Science & Pseudoscience

Here's a claim from the first web site that I found when searching for the Advantage of Organic Farming. It happened to be from an Australian site:

The nutritional value of food is largely a function of its vitamin and mineral content. In this regard, organically grown food is dramatically superior in mineral content to that grown by modern conventional methods. advantages and disadvantages organic farming

Because it fosters the life of the soil organic farming reaps the benefits soil life offers in greatly facilitated plant access to soil nutrients.

The study may have only looked at vitamins, not minerals. It may have only looked at the most common macro-nutrients, not micro-nutrients. It may have taken its food samples from farms that were recently converted to organic and had not restored the full balance of nutrients in the soil.