Spiegel Online Doing so has exposed ferrous compounds to the air, leaving them to rust. When the open-cast mines were shut down, the water level climbed ... On top of that comes pollution from sulfate . "We're just at the beginning of the problem," warns Falkner ...
The Spokesman Review Moss can be treated with iron sulfate or ferrous ammonium sulfate . Both are sold under a variety of trade names. Once treated moss turns black, it can be raked out of the lawn. Next, aerate the lawn well to allow air into the soil and reduce compaction.