Tired soil - what to do?

[Shaun Bowler]

My yields have dropped, even though I've been applying my own compost. It is Devonport volcanic loam. I'm thinking just resting from now until next spring, maybe a green manure crop. Any suggestions for a green manure crop from mid April, or other suggestions to put the zing back in  to the soil?

[Caroline Wilkinson]

We have begun using Bio-dynamic preparations and have noticed a huge improvement in the garden yield. We have heavy clay soil and it has made a big difference to our fruit trees as well. It's the only thing we have done differently that could explain the improvement.

[Shaun Bowler]

Thanks for your advice

[Richard Watson]

i use lupins and oats myself as a green crop