Posted: 20/07/2015 at 12:50
As I said at the beginning, carry on as you were. It is obviously working for you.
All that has been said in these posts, is really, that the more and varied organic material you can add, the better. Clay soil is already normally rich in nutrients, so all you need to do is to provide any plants with easy access to them.
The only other thing you may need to do is to buy a cheap soil testing kit. Adding organic material can have the effect of changing the pH of the soil.
Adding lime to a clay soil makes it flocculate, ie go lumpy. Sounds odd, but the lumps are tiny not great big clods. Clay is made up of tiny, flat plate like pieces which slide over each other when wet and stick together when dry. The organic material and the lime get in between the 'plates' and hold them apart, so they hold more moisture and so do not stick together.
A very simplistic explanation of a quite complex chemical and physical processes. Best of luck with your gardening. Our old clay soil grew the most fantastic crops once it was properly set up.