Deep Water Ebb-Flow System

Winding Down Batch 1 Have been harvesting pretty regularly. Enjoying the produce thus far.  Seems like the fungal or mildew or nutrient lock issue is spreading from Tiers 1 and 2 to Tier 4. So perhaps it's time to wind down this batch and to clean the system. Target system clean is 18 Mar, during the Mar hols. Will experiment with new batch of lettuce, with dedicated equipments (scissors) and portable fan for top up tiers and to apply crop rotation.  Hypothesis here is that with crop rotation, each batch of water nutrient mix can be further prolonged.  Will harvest the Red Oaks and Lollas till then.  Also have to start thinking of a plan to transfer the Basil too.  Thanks to a fellow YH enthusiasts, improved the water level indicator with this mosquito prevention net. DATA EC1020 pH6.56 Temp 29C Water Level: @MIN Topped up with 4L water, moderated by 20Down

VDay Good morning!  Harvested a batch of Red Oaks for dinner to accompany the Prosperity burger from Macs.  Harvested some sweet basil for Thai styled basil minced pork.  Observed some issue with a few Cos and Lolla leaves. Not sure what caused it. No insects underneath that can be seen. Placed an ask in the Yash group chat for help.  DATA EC1262 pH6.33 WT29 Water level: at Min level. Top up 4L 20 down

Day 2 of CNY Double Harvest Harvested a colanderful of Red Oaks for brekkie.  Red Oaks tasted very earthy, hinting at end of life. Although no signs of bolting yet, perhaps at 60 plus days, these batch is almost at senior citizen phase. And lollas for lunch. Tasted a little earthy but young and tender. At 24 days young.  Balance of Red Oaks after harvest.  Lollas are definitely ready for harvest. Just waiting for the right meal opportunity to come along.  Feeling guilty (slightly) for missing 2 days of data in a row! 😅 So here's the lay of the land for today. Data shows OK EC but pH creeping up. Water level is at Min level. So some topping up in order.  Harvested  DATA EC1262 pH6.35 WT29 Water level: at Min level. So top up 4L of water, 10mL AB from BLH, moderated by 20 down

Top Up Time On the way to a new year with abundant growth 🤞🏻😁 Lollas looking good.  DATA EC1316 pH6.14 WT30 Water level: at Min level. Top up 4L of water with 20mL AB, moderated by 10 down. 

Start of Next Seeding Cycle Effectively started the next seeding cycle. Placed one pelleted Cos in Tier 1. The lollas are growing well and in a few days, some thinning is necessary to ensure good health. The balance to be consumed as microgreens. Some learning points. After harvest, it seems that this is to be expected. Remains of roots trapped at the outlet, thanks to the mesh. Just need to check and clear with tweezers, to ensure that water flow is uninterrupted. DATA: (after 4L water top-up) EC1488 pH5.55 WT28 Water level: near Max level. - Topped up 4L of water with 10Down, in the early morning, resulting in water level near to Max. Moderated by 10 drops.

Harvested Grand Rapids fully and Seeded Lolla Lettuce (from BLH) Before and... After! Gone are the "messy" GR from the whole tier. Yield is approximately 100g.  Decided to harvest all the GR. These are 31 days old. Stems and leaves are fine and soft, not as crisp as I would have liked. Same observation for the Romaines. Suspect that it could be due to lack of macronutrients such as nitrogen and possibly calcium. Ordered calcium nitrate pills from Shopee to address this. COS/ROMAINE: More tip burns observed. Two likely factors - calcium deficiency and lack of regular airflow to increase evapotranspiration. LOLLA LETTUCE: Bought this from BLH. Cleaned all the pots, and got rids of protruding roots, and cleared the remaining stems from the pots. No signs of algae on the leca balls. Roots that were removed were crisp to the touch and not slimy. A good sign. Placed about 4 to 5 seeds per pot. RED OAK: Little tip burn observed on the RO. Could be due to the better and regular airfl...