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#hydroponics

5 posts5 participants1 post today
Public
Finley

Day 38 of budget #hydroponics!

I feel like I could harvest some now! However, I'm starting to get concerned that something isn't quite right in the water, but I don't know what that could be. The two lettuces closest to the camera are not faring well and have a lot of stem without much leaf. Perhaps that's a light problem, or a nutrient one?

I might harvest some, redo the water and see how it fares

Two square shelves of lettuce grown in black tubs. The two nearest lettuces have splayed leaves.
A close up of one shelf of lettuce. The back lettuce seems stronger and upright, whereas the front lettuce has splayed leaves and a longer stem structure.
Public
Tinker ☀️

Oh shit. Gonna build a lettuce wall.

Can't stop. Won't stop.

Design Goals
- Low effort / passive / automated (After initial build, only requires 30 mins of work a week to maintain)
- "Inexpensive" (measured in how quickly it pays for itself compared to shopping at grocery store)
- Small footprint for indoor spaces (uses vertical space as opposed to horizontal space)
- ADHD friendly (you dont have to keep monitoring it. Set and forget)
- Provides entire personal need of leafy greens in continuous fashion
- Provides excess of personal needs in order to continuously share freely with neighbors

(Follow this thread in the coming months to watch the buildout. I'll post design theory and application along. It'll be vendor/brand agnostic. And I'll post up methods to tailor it to your space.)

(Photo below of prototype. It works! Time to scale it.)

Photo of leaf shelf with three bins hosting 15 plants. 5 each of butterhead, goldrush, and arugula). The heads of lettuce fill the space and fall over the sides of the bins showing bounty.
#solarPunk#indoorGardening#verticalFarming
Public
chmod777 :donor:​:d20:​👺​

I'm starting to dabble in hydroponics to grow veggies and fruits indoors. A friend lent me a grow tent and a spare grow lamp.

I'm really interested in trying the Kratky method for growing some leafy greens (lettuce, kale, and/or bok choy) and probably some herbs.

Any success stories, tips, tricks, or suggested veggies I should try out?

#Hydroponics
#Kratky
#KratkyMethod

Continued thread
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Shaula Evans

I did it! I moved my #IcePlant to a #Kratky pot (1l juice jar, covered in a black sock) with a 0.1 M NaCl solution. I am now growing, or attempting to grow, a plant in salt water.

I even managed to find yet another sock with a hole in the toe that I saved in the confidence I would find a use for it.

This is pinnacle mad scientist. My (space station) life has peaked.

I am so excited to see how my little plant fares! 3/n

@gardening #MesembryanthemumCrystallinum #IndoorGardening #Hydroponics

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Licho

My small #aquaponics success. After hibernating the #fish for 4 months without any feeding, they woke up and the water parameters went to critical level - although no ammonia was detected (AOB colony in biofilter was doing good), the level of nitrites went up uncontrollably. Apparently, the NOB colony wasn't healthy. We replaced large portion of water. Nothing changed for some reason. In desperation I added some molasses to the biofilter. Two days later the water turned cloudy and the Nitrite level went down. The biofilter got supercharged, the pump clogged with those #bioflocs but the system is rescued.

#solarpunk#aquaculture#hydroponics
Public
All for Gardening

Hey everyone! I put together an 8-page visual guide to explain the Kratky hydroponic method for tomatoes. It covers the basics of the setup and how the components work together. Hope it helps beginners! allforgardening.com/1226566/he #hydroponics

Hey everyone! I put together an 8-page visual guide to explain the Kratky hydroponic method for tomatoes. It covers the basics of the setup and how the components work together. Hope it helps beginners!
Continued thread
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Shaula Evans

More information on the benefits of NaCl for iceplants, aka Mesembryanthemum Crystallinum . (This fascinates me!)

It truly feels like an experiment worthy of my Space Station Life.™😂 2/n

mdpi.com/2311-7524/10/12/1304

@gardening #MesembryanthemumCrystallinum #IcePlant #Kratky #IndoorGardening #Hydroponics #SalinityStress; #DPinitolSsynthesis

MDPIEvaluation of Sodium Chloride Concentrations on Growth and Phytochemical Production of Mesembryanthemum crystallinum L. in a Hydroponic SystemMesembryanthemum crystallinum L., commonly known as the ice plant, is a halophyte recognized for its exceptional salinity tolerance. This study aimed to determine the optimal NaCl concentration for promoting plant growth, D-pinitol, and other phytochemicals in M. crystallinum cultivated in a hydroponics system. Seedlings of M. crystallinum were transplanted into a hydroponic system and subjected to different NaCl concentrations (0, 100, 200, 300, 400, and 500 mM) in the nutrient solution. To evaluate the plant’s response to salinity stress, measurements were conducted on growth parameters, chlorophyll and carotenoid levels, total flavonoid and polyphenol contents, and DPPH scavenging activity. The optimal NaCl concentration for growth was found to be 200 mM, at which the shoot fresh and dry weights were highest. Additionally, total chlorophyll and carotenoid contents were maximized at 200 mM NaCl, with a subsequent decrease at higher concentrations. The highest DPPH scavenging activity was observed in the 200 mM NaCl treatment, which correlated with increased levels of total flavonoids and polyphenols. These results indicated that optimizing NaCl concentration can enhance the antioxidant activity of Mesembryanthemum crystallinum L. The D-pinitol content also peaked at 200 mM NaCl treatment, further supporting its role osmotic adjustment under salinity stress. M. crystallinum exhibited enhanced antioxidant production and cellular protective functions at 200 mM NaCl, which optimized its biochemical defense mechanisms and helped maintain physiological functions under salinity stress. These findings provide valuable insights for agricultural and biological applications, particularly in cultivating M. crystallinum for its bioactive compounds.
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Shaula Evans

My Common iceplant (#MesembryanthemumCrystallinum) has had a growth burst this week!

I *may* eventually transfer it from its current #hydroponic slot to a #Kratky set-up so I can experiment with adding saline!

Has anyone here done that (Kratky ice plant, hydroponic ice plant, and/or adding salt)?

I'd love advice about harvesting select leaves early if anyone has experience with this specific plant. 1/n

pmc.ncbi.nlm.nih.gov/articles/

#IcePlant #Kratky #IndoorGardening #Hydroponics @gardening

PubMed Central (PMC)Sensory Evaluation of Common Ice Plant (Mesembryanthemum crystallinum L.) in Response to Sodium Chloride Concentration in Hydroponic Nutrient SolutionCommon ice plant (Mesembryanthemum crystallinum L.) is a novel edible plant with a succulent and savory flavor. The plants display prominent epidermal bladder cells (EBCs) on the surface of the leaves that store water and sodium chloride (NaCl). The ...
Public
Finley

I have finally set up my trial hydroponics area! After a year of wanting to give it a go, it was finally time to put what I've learned from here into practice. So thank you #hydroponics and #solarpunk for giving me the oomph to get this over the line!

Now let's hope the lettuce don't mind the miniscule setup and will grow up yummy 🥬🤞🏻

A short, narrow bookcase with two shelves. Each shelf has a black tub on it with lettuce seedlings wedged into the lid. Grow lights are stuck above each tub.
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