Corn Gluten Meal
I am going to try out the Corn Gluten Meal as a per-emergent this year. The only non grass weeds I typically get are dandelions and other misc things. Nothing too bad. I do have quake grass peppered throughout (from an ill decision years ago of using Kentucky 31 to over seed. I go around with a carpet knife and remove clumps as I see them). The quake grass doesn't form seed heads, so I know the CGM won't do anything for that.
So anyway... the question I have is that the feed store where I typically get the organic feed for the lawn from only has 50lb bags of 20% CGM. What's the deal with the "20%"? Since this is the only place i have available that sells feed ... I have nothing to compare it to. Is 20% normal?