4-18-38 Fertilizing Question

peebee · March 18, 2019

So, I've been reading and reading as much as I can here and on the net about this fertilizer and I have not found this specific question answered:
If I go with the 4-18-38 fert, calcium nitrate and Epsom salt route in my Earthbox water reservoir, will I still need to add the strip of granular fert (ones recommended for EBs)?
If this has been addressed on an earlier post, I must've missed it somehow but the ones I've read are vague about this. I'm hoping our resident hydroponics guru AKmark and our EB guru Marsha will chime in also.
Again, this is for EBs only. I am almost ready to start them soon. My in-ground toms will be dealt with later. Can't wait!

March 18, 2019	#1
peebee Tomatovillian™ Join Date: Aug 2006 Location: Southern CA Posts: 1,714	4-18-38 Fertilizing Question So, I've been reading and reading as much as I can here and on the net about this fertilizer and I have not found this specific question answered: If I go with the 4-18-38 fert, calcium nitrate and Epsom salt route in my Earthbox water reservoir, will I still need to add the strip of granular fert (ones recommended for EBs)? If this has been addressed on an earlier post, I must've missed it somehow but the ones I've read are vague about this. I'm hoping our resident hydroponics guru AKmark and our EB guru Marsha will chime in also. Again, this is for EBs only. I am almost ready to start them soon. My in-ground toms will be dealt with later. Can't wait!