Best liquid fertilizer

[codeman]

We have all of our vines irrigated and a built in fertilization system. We can add any liquid fertilizer to the system. What is a good brand to use that also contains all the micro nutrients grapes need like copper, zinc, magnesium, etc.?

 

[DGarrett]

I use these guys.

http://ovs.com/catalog/fertilizers

For new vines their BGS 1000 works great.