NO-DIG IN A NUTSHELL
Soil is undisturbed, its organisms can work and multiply. With no-dig you build on the existing network of life. Organisms are fed with organic matter on the surface, as in nature but faster. This is because decomposition has already happened in compost heaps, together with a multiplication of microbes. Compost enables soil organisms to work their magic more quickly.
Plant feeding is about biology (fungi, etc) more than chemistry (nutrients/ minerals). No-dig increases the ability of plants to find food that is already there.
This is an extract from Charles Dowding’s
No dig gardening – from weeds to vegetables easily and quickly (No Dig Garden, £22.50)