Title: Grow Log, Home: Round 2 Date: 2022-07-29 Category: Notes Summary: Grow log for my home hydroponics setup, round 2. Wide: true 2022-03-05: Started germinating 2022-03-07: Just barely noticed germination 2022-03-08: Noticed all leaves except spinach again 2022-03-10: Transplanted into tote 2022-03-12: measured pH: 6.0 2022-03-20: thinned out weak plants 2022-03-25: lettuces have no roots below net pot. others have lots of roots in the water. some leaves have a weird film on them, some have white stuff. 2022-03-28: Three lettuces wool dry on top. No roots below net cup. Roots are growing a bit out the sides. Dropped wool to bottom of net cups, topped water up to 1 cm above bottom of net cup. This might harm the other plants? The lettuce roots grew through a lot of the clay balls but not enough to reach the water. - I assumed the clay balls would wick up enough water that it wouldn't matter. 2022-03-30: EC measured 1.1. trimmed oldest leaves, lettuce roots now good in water 2022-04-01: pH measured 6.7. brown tips on lettuce. 2022-04-06: Harvested first salad, arugula and cress taste horrible like paint thinner. Lettuce was good. 2022-04-14: Terminated. ## Germination - index is top left in tray - rinsed all equipment with water - 1 L growth solution prepared - 1 L tap water - 1.3 mL plant food - 0.5 mL pH Down for 5.5 pH - forgot to shake plant food - 12 mineral wool cubes each soaked for 10 seconds - three seeds of each, except five for arugula and cress in X pattern - hole was opened with a broken toothpick - seeds tamped down the hole with the toothpick - remaining solution added to the bottom of the tray ### Result (columns left to right) - iceberg lettuce LT541 - arugula MS483 - romaine lettuce LT470 - cress MS495 - butterhead lettuce LT458 - spinach SP705 ## Growth - used 102 L HDX tough totes - sides bow out quite a bit, try duct taping - 100 L growth solution prepared - 100 L tap water (estimated) - 117 mL plant food (needs more?) - 10 mL pH down to 6.0 - cut six holes into Foamular - transplanted sprouts into net cups - layer of clay balls under and around sides of starter plug - filled tote pretty much to brim - tote sides bowed out quite a bit. maybe it's 110-120 L full of water? ### Layout: (reading order) - iceberg lettuce LT541 - romaine lettuce LT470 - butterhead lettuce LT458 - arugula MS483 - cress MS495 - arugula MS483