I have already grown cukes in the AeroGarden, they produced only 10 in 22 weeks. It was not a very productive grow and was beset by problems, shrivelling cukes and dry/brittle leaves. The plant was only able to produce two at any one time, what the problem was is hard to pin down - possible nutrient issues (not exactly sure of the correct feed for this plant), lack of light or, that the AG was just too small to contain this large plant?
The original grow is here, have a read through and Episode II will make more sense.
The cukes I will be growing are all female (no pollination required) and are Thompson & Morgan Zena F1 Hybrid. They will be grown in my modified Classic with an AG6 pod, rockwool, air stone and using the General Hydroponics 3-Part Flora Series nutrients.
Thanks to Beth, she has given me a table of the nutrients required to grow cukes. They are from the book Hydroponic Food Production by Dr H.M. Resh
NH4 NO3 PO4 K Ca Mg B Fe Cu Zn Mo
128 3 27 175 100 20 0.3 0.8 0.07 0.1 0.03 - Seedling
267 7 55 350 220 40 0.3 0.8 0.7 0.1 0.03 - 10 days until 1st fruit set
255 7 55 400 200 45 0.4 0.8 0.1 0.33 0.05 - Maturity
After much number crunching using the GH calculator, I have come up with the following feeds which have been adjusted for the AeroGarden.
N P K Ca Mg
130 27 166 25 21 - Seedling (AG Dosage - Hardwater Micro 7mL, Grow 7mL, Bloom 2mL)
267 55 349 51 45 - 10 days until 1st Fruit set (AG Dosage - Hardwater Micro 14mL, Grow 15mL, Bloom 4mL)
256 55 395 40 46 - Maturity (AG Dosage - Hardwater Micro 11mL, Grow 19mL, Bloom 3mL)
This is pretty close, note the low calcium levels! I'm using hardwater micro, this has little calcium in it - what I will be doing is using some hydroponic calcium supplement to bring this level up.
Let's see if Resh's formula and my extra calcium can solve the problem...
Weekly Grow Pictures