Surprised by how well the water is wicked to the medium from the water bottle, it took a long time, but RH% works as intended. I was unsure how much if any nutrient would be transferred via wick but the high salt content altered pH at certain parts. Right before the symptoms arose I decided to supercrop the stem top to bottom on one plant, shortly thereafter the burning happened from same plant from running 8.0 pH , and nutrient uptake ground to a halt on the same plant that was dealing with stress. She really doesn't seem happy.
Remedied with aluminum sulfate, things seem to be coming back to normal.
I need to be more careful with salts. I need MOAR knowledge.
How many weeks shall we veg? Going to take a while to fill that canopy with just two plants, should probably start topping now but I'll wait until pH problem Is remedied first, a couple more days hopefully 🙏.
I defoliated maybe 6 bigger leaves that had burned yellow on one plant, as it comes back to optimal range, this will be a good opportunity to observe the subtle differences that early defoliation can make.
Added a pound of tourmaline powder and biochar, both increase soil urease and invertase activities.
Urease is an enzyme that catalyzes the hydrolysis of urea into CO2 and NH3 and is a key component in the nitrogen cycle in soils.
Invertase (d-fructofuranosidfructohydrolase, EC 3.2.1.26) is the enzyme that capable both break down α-1,4-glycosidic linkage between d-glucose and d-fructose of sucrose and transferring αβ-D-O-fructofuranoside residue to an acceptor substrate (Toledo et al., 2019).
Since tourmaline is widely distributed in natural environment and has many excellent physical and chemical properties including radiating far infrared energy, permanently releasing negative ions, producing an electrostatic field, releasing rare microelements, and stimulating the growth and metabolism of microorganisms and plants, tourmaline had been conducted to alleviate environmental pollution.
Urease is an enzyme that catalyzes the hydrolysis of urea into CO2 and NH3 and is a key component in the nitrogen cycle in soils.