The health of soil – the issue on which organic agriculture was founded – is undergoing a scientific revolution. Part of that revolution is a growing understanding of the complexities and importance of how plant roots interact with each other and the rest of soil biology.
A recent paper, ‘Enumerating soil biodiversity’1, found that the majority, some 59 percent (± 15 percent) of all species, live in soil – more than the oceans, rain forests or any other habitat! Most soil organisms get all their energy via plants, as it is only plants that can capture the energy in sunlight. Most of that energy is transferred to soil biology via root exudates
