Thanks for the advice, guys!
I have some formulas dedicated for strawberry and thought to periodically do plants analysis (leafs and petioles) to compare reality with reference data.
The problem with existing mixes is that I can’t find anything close to what I need. For ex., one of the formulas is above, an another one - more detailed - is like this:
6 meq K+, 7 meq Ca2+, 6 meq Mg2+, 1 meq H+, 12 meq NO3-, 1.5 meq H2PO4-, 6.5 meq SO4-, with the following concentrations of micronutrients: 3 mg L-1 Fe2+, 0.5 mg L-1 Mn, 0.1 mg L-1 Cu, 0.1 mg L-1 Zn, 0.1 mg L-1 B
Which is in mg/L: 234,588 K, 140,273 Ca, 72,915 Mg, - H+, 168,083 N, 46,460 P, 104,203 S, with the following concentrations of micronutrients: 3 mg L-1 Fe2+, 0.5 mg L-1 Mn, 0.1 mg L-1 Cu, 0.1 mg L-1 Zn, 0.1 mg L-1 B.
K:Mg balance is pretty important and should be like 4:1 . Micronutrients are also pretty specific to strawberry.
None of the available mixes offers anything like that.
Do you think it is better to go with non-optimal but factory-mixed solutions?
My chamber volume is roughly 420L. I’ve got Atomizer’s MIN/MAX numbers: 1.3 to 2.6 liters per 100L per day (from 5.46 to 10.92 L per day for the chamber). I’m using the lowest value as of yet, so with 1 bar water pressure my flow rate is 1,64 ml per cycle (0.5 sec ON, 23,37 OFF) dirty or 1,5085 ml per cycle without overhead (~0,0136 ml/gal). With overhead it gives me ~6 L of water per day for my volume.
Why? I would assume the particles rather big and have difficulties to climb up… 20 micron particles would easily go up with all that pressure and hang closer to 2-3 minutes, don’t they?
I think this happens because particles are pretty big and falling down quickly so nothing to reflect of - which in turn makes the beam look dimmer. Like at the beginning: empty chamber, no visible light beam at all, just bright dot on the floor. Then after some time mist starts to fill the chamber and beam become more and more visible. This is actually tells that particles might be closer to the expected size (0.05 mm) but is that a “correct” size - don’t know.
It is pretty important that camera is in an around a 100 cm from the laser pointer and right next to the one of the nozzles.
It might be but these holes are pretty small. They look bigger than they are and this is actually the only wholes except the tap hole. I’m still thinking about them: foam plants holders sit pretty tight so there will no any gaps around them or around a plant. I don’t want to completely seal the chamber. So I either need to make some other holes or leave these as they are
A perfect question! I hope my seedlings still alive in a fridge. They are there for 2.5 months already. But look green, so I hope they are alive.
Actually I’m going to figure out what to do with nutrients solution and try to put one or two plants into the system. I have 30 seedlings IIRC but don’t want to start with all of them at once