You know that I whine and rant about the sand here at Wit's End and how I keep adding organic matter into it, mulching it, trench composting it and it still turns back after a few months into a fine grey sand.
Well I watched a gardening dvd yesterday while I was knitting my bag (yes, it's finally happening) and the presenter mentioned that soils in Perth, Western Australia have less than 1% organic matter in them.
That's scary stuff to me! Now I know why no matter how much I keep adding to my soils, it' s going to take a long time to bring them back to a nice rich state.
So Perth soils are wasting away, our food bowl the wheatbelt is dying from a huge salinity problem. The reduction in groundwater levels is causing some Perth suburbs to sink.
Going to do more knitting to ponder on this.