Soils - topics

Life in soil –  intro - soil food web – organisms, micro-guilds, pests -  pulsing, ethylene, ferrous/ferric switch
Soil building in nature   
What makes good soil?  (group exercise)
Soil structure and the effects of cultivation – carbon in soils - soil structure diagram
Soil testing  - soil jar test – in woodland and in garden
When to cultivate, and how?
Soil structure and edge
The nitrogen cycle in soils
Soil building in zones 1 and 2 (composts, fertilisers and mulches)

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