How do I improve shallow soil over clay?
We are trying to start a veg patch at our new place. The soil is grey hydrophobic dust on top and then compacted clay from about 2inches down. I'm trying to break up the clay bit by bit but would love suggestions on what to add to the clay to keep it broken up and the dusty parts to make it all a yummy soil the worms and veggies will love. We have a compost tumbler currently brewing, worm farm plodding away, never ending supply of dry and decaying marri leaves and chicken poo from the chooks to access.
MEG: REGULAR ADDITION OF LOTS OF ORGANIC MATERIAL - EG MANURE, COMPOST, HAY ESP LUCERNE OR PEA, A COVER CROP - WILL IMPROVE ANY SOIL. GYPSUM WORKED IN WILL HELP BREAK THE CLAY UP. USE A WETTING AGENT ON THE TOPSOIL. MIGHT BE BEST TO AVOID THE MARRI LEAVES AS THEY MAY ADD HYDROPHOBIC WAXES TO THE SOIL (ANYONE OUT THERE TRIED IT?) BUT YOU MIGHT BE ABLE TO BREAK THEM DOWN OK IN COMPOST AND USE THAT.