I was thinking about a question you posed a few days ago about Micro
nutrients.
We used a local product called green sand and have also used granite
dust. We my Dad and I think of these as long term feeding similar I
guess to granulated lime. Slow on breaking down. I have not touched
green sand for about 30 years. Went with cover crops and chicken waste
composted rarely usually just topical and tilled in.
Bill
http://www.google.com/search?q=Marlton%20green%20sand
--
S Jersey USA Zone 5 Shade
Balgreen Portal to the Souther Realm
http://www.ocutech.com/ High tech Vison aid