1. FEEDING THE SOIL THAT FEEDS US.
- Author
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Harvey, Graham
- Subjects
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MINERALS in human nutrition , *SOIL mineralogy , *FOOD composition , *PLANT nutrition , *FERTILIZERS , *AGRICULTURE , *HEALTH , *NUTRITION - Abstract
The article discusses the importance of maintaining mineral-rich, fertile soil to one's health. Minerals are in our food today because of events that took place more than 10,000 years ago. As the glaciers retreated at the end of the last Ice Age, they exposed the fine dust produced by the grinding action of ice on the rocks below. Traditional farming methods aimed to retain minerals in the topsoil. By returning plant and animal wastes to the land, communities were able to slow mineral loss. Far from enhancing fertility, the new chemical fertilisers hastened the loss of trace elements from the soil, or so damaged soil structure that they were no longer accessible to plants. As the mineral content of the soil fell, so did their levels in everyday foods.
- Published
- 2008