"I3 I L L" wrote in message
oups.com...
All the dosing instructions I've seen are for each compound separately.
I was assuming that the PMDD from Greg Watson was 1# of various
fertilizers mixed together. Is this how it is, and would someone have a
link to T. Barr's formula? Thanks

Here are some good sources .....

Chuck Gadd calculator
on line
http://www.csd.net/~cgadd/aqua/art_p...osage_calc.htm
on you own computer
http://www.csd.net/~cgadd/aqua/art_plant_aquacalc.htm

check out
http://www.csd.net/~cgadd/aqua/art_p...izer_intro.htm

http://www.thekrib.com/Plants/Fertilizer/ and
http://www.thekrib.com/Plants/Fertilizer/pmdd-tim.html

Here is an interesting one on carbon and trace elements I'd missed before
http://www.thekrib.com/Plants/Fertil...ar-carbon.html

Bob