Yesterday's top-off left me about out of nutrient concentrate so I had to make up a new batch this morning. I use the Total Gro Steiner hydroponics solution and it's just great. LOOK HERE The 8-5-16 mix is talked about HERE The site also have numerous other nutrient combinations and lots of technical materials for those who want to understand what is going on more deeply. This is fascinating stuff if you are technically inclined.
I mix up a concentrate by combining one pound of the white mix in a gallon of water and separately one pound of the blue mix in a gallon of water. This gives me a gallon of white concentrate and a gallon of blue concentrate. This is further diluted at about one ounce of concentrate to a gallon of water to make working strength solution. Note that when I say I added a cup of concentrate I mean a cup of the white (8 fluid ounces) and a cup of the blue (another 8 fluid ounces) to the system's tank. So I'm really adding two cups of stuff. You can't combine the concentrates at the concentrate concentration (there's a tongue twister) because it will cause essential nutrients to combine chemically and precipitate out and then you will have nutrient deficiencies.
So this morning my CF =22 and the system is fine but I was out of concentrate so I made up two gallons of white and blue solution. It took maybe half an hour since I carry all the paraphernalia, a bucket, a scale, some bags of powered 8-5-16 fertilizers and sit around contemplate the scenery as I mix things up. Now with two gallons of each I'm good for the rest of the Summer I figure.
This is just great fun! It's one of the best hobbies in the world.
Harvest Update — 3 more corn and 2 Donas from the garden 2 1/4, and 1 ounce.
10/11 G: Corn picked three total now 5. and likely only a couple more.
10/11 G: 2 Dona, 2 1/4, 1 for total of 4 at 6 1/2 ounces.
10/10 F:Atkinson/AL 2 at 7 3/8 and 7 1/8 for total of 6 at 36 3/8 ounces
10/10 F: Dona 1 at 1 1/2 for a total of 13 at 19 1/2 ounces
10/10 G:Dona 1 at 1 1/2 for a total of 2 at 3 1/4 ounces
10/8 G: Corn picked 2 and they look good. Total = 2 corn
10/8 G: Atkinson/AL 5 1/4,6, 6 3/8, and 7 3/4 for 4 more total 5 at 30 5/8 ounces.