Re: Air-spade What sort of compost are you putting down there?
How deep are the holes?
Any toxicity issues?
Sometimes decomposing organic matter can give of poisonous gases like methane and amonia. My concern is if the compost is too raw and the holes become a waterlogged then you could end up with toxicity issues. But depends on the soil too. Any experience with anything like that?
I know I killed a bunch of Azalea shrubs once when I threw a handful of organic lifter under each before backfilling. |