Commercial Heat Mat Trial - Sunflower Microgreens - OTG - On The Grow
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- Опубліковано 7 кві 2020
- 🌱We know that adding heat to sunflower microgreens accelerates germination, but we didn't know if it also works with trays that are commercially stacked...
➡️In this video we test this by having two different groups, one that was on a seedling heat mat and the other was not on a heat mat. Both groups were stacked 4-trays high, to see if the heat could rise through the stacked trays evenly!
Link to Full Sunflower Heat Mat Trial: • Sunflower Microgreens ...
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#microgreens #gardening #indoorfarming - Навчання та стиль
In all my time on UA-cam, I have never heard anyone ask for honest feedback regarding Thumbs Up or Down. Refreshing perspective and Excellent Content!!
Awh thank you, the thumbs downs are just as important as the ups. Helps us figure out things we can improve on 🥳
Appreciate you watching and supporting us!
You guys just do your videos right....you think about "what would i need to know" if i was interested and or curious in growing microgreens. Thanks for all the awesome content!
Thank you Jona, we appreciate your support! We do our best to help others looking to get started!!
@@OnTheGrow Quick question, does the heat mat give off a plastic smell of its own?
@@waltermackay I've used heat mats for my veggie seedlings for years and they've never emitted an odor. I would suggest that you thoroughly clean your mat when you get it home to be sure that no surface contaminants cause odors.
Adding 1/4" pink rigid insulation underneath the heat mats will provide greater energy efficiency. Also, I think the temperature controller is important as these mats seem to get too warm without one and can damage the seed. Another great vid, thanks!
Our sunflower grow so much healthier without heat.
Not only does the heat instigate mold, but stacking trays created too much contact with the heat pad and bottom tray causing the seed to not germinate. Only until we removed the heat days later did the seeds start to finally show life. This might be due to the fact that we didn’t use the temp controller so our pads were max heat all the time.
The heat also created an enormous amount of moisture in the trays which turned the coco coir into sludge. When lifting stacked trays, the coco coir completely ripped apart and seeds and crops got egregiously dirty!
We’ve completely moved away from the heat pads as they have given us such large inconsistencies across all our crops.
You need a thermostat.
Small tip: When showing us the top of the growth, lift the back of the tray( closer to you) and take a peek at the roots. That way when you show us the roots you already know what you'll say about it.
Thank you guys for showing us all of your comparisons and experiments. They're incredibly helpful
put a planket around the heat matt ones to make them feel extra cosy 🥰 (and to save electrcity 🧐)
Hope all is well with you and yours. Thanks for making these.
Great experiment and results. Good info. Thanks for sharing your findings.
14:19 "This is probably the most important tray"??? No. The bottom tray is the LEAST important. You already ran the experiment previously on the bottom tray heat mat vs no heat mat. This experiment was about whether the heat mat made a difference on trays above the bottom one.
The experiment result that was most interesting was trays 3 and 4 which show a substantial increase in germination up through tray 3 but not in the top tray (4).
I have a hypothesis on why #3 was the last tray to show an increase: It was the highest tray that still had an insulating layer of a full additional tray above it. Reasoning? The top tray still had water vapor on its lid so you know the heat was still rising substantially at that point. But the lower increase in germination might have been because that lid on #4 had the fan blowing across it rather than keeping the heat in through an additional layer of fan-insulating trays above it.
Proposed test:
I would guess that another layer of insulation by having a 5th tray would have meant that tray 4 would have also had better germination on it than the non-heat-mat tray 4. If you had the room on your shelves to re-run this experiment, I would find it interesting to run it through maybe 8 trays. If you then had a substantial difference through 7 trays, then you might even look to try higher than that.
If you did an 8-tray stack and the improvement in germination was not noticeable by tray 6, that would give you a huge bit of information as to how many trays of improved germination you could get off of a single heat mat. The next question would be what you could put over the top tray's cover to provide insulation from heat loss caused by the fan.
Anyways, nice test there and very interesting results.
Perhaps wrapping in the reflective foil would help
Fascinating. The whole "heat rises" thing is only true within fluids like air. Heat transfers at a constant rate in all directions within solids. I bet you're still getting a lot of heat transfer upwards because of the fact that the grow mediums are pretty permeable, and there's a lot of water vapor at play. You might get a lot more consistent performance in the stacks of 4 if you placed the heat source between the 1st and 2nd mat in the stack. I would almost say to put it in the dead center of the stack, but the heat is clearly rising, so there is fluid heat transfer at play. Just a theory.
I've watched like 30 of yall's videos because of all this isolation business. Super interesting stuff. My girlfriend has been talking about hydroponics for a while, and I finally decided to get a microgreen starter kit from True Leaf Market to pass the time in quarantine. Unfortunately, their shipping time is extended because of extremely high order volume (good!). Can't wait to harvest that sweet, sweet spicy salad mix and expand from there.
Great test. Thanks for sharing!
Love this! Very interesting!
🙂Thank you so much for the Feedback Rebecca Johnson! We appreciate your support!
Love the experiments!
Thank you so much for the support 🤗🌱🌱
Nice video. The heat mat detector should be plugged into coco, so it will get the medium heated to the temperature you want. Otherwise it's simply showing the temperature of the air. The temperatures on the thermostat shows between current soil temperature (you need to put that little thing into the soil) and target temperature. It's not showing the temperature of the heat mat. The heat mat produce more or less heat depending on how much difference there is to reach the target temperature.
When running heat mats I tape the probe to the under side of the mat & then adjust the mat temp to get the desired temp above the mat as registered on a second temp probe. Once I get it calibrated I ditch the second probe.
The reason I do this is it keeps the probe out of the way making cleaning easier and no wires in my way.
Good Stuff!
Good info! thanks :)
Thank you Dan Barnett 🥳 We really appreciate your support!!
Don't forget to share your results with us on your upcoming projects!!!
Great video. I’ve enjoyed your channel and how both of you are able to present information clearly and succinctly. You both are great on camera.
One metric that I would have been interested in, was the height of each tray above the other. On the last day, each level on the heated vs the cold/control group were up by a significant amount. The heated trays looked like the base was higher than the lip of the tray below them. That would probably give some quantifiable measurement to how different each tray’s growth is when compared to each level within its group, and it’s counterpart within the different temperature group.
Well done
Fantastic comparison as always. Lets see the same test for the Amaranth!
Great info! Maybe soak sf seeds in warm or hot water for an hour to shed more hulls.
So interesting! I'm glad it gets warm in our grow room. I get a higher condensation and faster germination as well. :) Awesome video guys!
Oh, can you please share which type of cantaloupe seeds you use for your cantaloupe microgreens?
That awesome I may invest in heat matt
🙂We are only using them under our germinating trays for now.
1st viewer love your channel. Most informative MG channel
Thank you so much for the support!!! We really appreciate it!
Max benefits from two or three trays high? Also thermometers on each tray or at least the top tray vs ther bottom tray difference in heat. Great video, so pumped, nice content!
Thank you for your video
Did you watering during your experiment
Thank You so much for this test! What is your ambient room temp and what temp was the heat mat set on?
Love your content! Your videos have been very helpful for me in determining my seeding rack setup for my aquaponics greenhouse. Do you have a good source for none GMO seeds that you could share?
You all do great vid's:)))
I am still in the early/learning stage.
So my take on this, might just uping the overall unit temp allow the benefit to all stages?
Best; Tom
Hey a huge fan from India of u guys you guys do best microgreens but I really wanted to see videos of how to grow microgreens like mustard, basil, cabbage and Fenugreek . Hope I'll get to see these videos too in a shorter time .
You may have asked and answer but how long do seeds generally last. If I buy in bulk, how quickly do I need to use them? BTW I absolutely LOVE your channel. I've binged watch probably all of ya'll videos since being home and I've now started my own microgreens. Thank you so much! Keep the videos coming. 💚🙂🙂💚
So what you're saving is time? But does it effect yield? Probably not, as you harvest at a certain stage which remains the same? All of your tests are really helpful. Thank you!
CJ, thanks for the content.
What if the top tray was covered with foam board? You might get consistent growth with all heated trays.
everythingpies or put a cap over the whole stack (box) and use a very slow fan inside to circulate the heat? Too much free time on my hands.
Why not ph balanced? Awesome video tho
Thank you so much! The new batch of seed is doing perfect without the pH balance and much shorter soak times! 🤗🌱🌱
@3:55 MOLD! xD
EXCELLENT RESEARCH AS ALWAYS!!!!
They spray w/ hydrogen peroxide so it likely died off right after that shot lol
Next test I would like to see is carrots. Especially because of how SLOW they germinate. If heat mats (stacked trays) could make a big difference on germination rates for carrots, this would give a lot more information on just what percent the increase rate is. And might make a difference of several days rather than just one day on fast-germinating sunflowers.
Hi guys do you know what the temp of the cold tray was? I know you said the heat mat was 86° was the heat mat tray also 86°? Thanks! Great experiment. Very helpful for me as a grower. ❤👍
In darkness of the germination process seeds work like animals in terms of cellular respiration, so they are converting Glucose and Oxygen into ATP and they are "breathing out" water and carbon dioxide. So perhaps the higher presence of water on the "lid" is evidence of faster growth.
Can you do a Video on wheat grass
What do you do with all the coconut medium after harvest? Do you re-use it? Excellent video btw
They compost it for their outside gardens.
do you still use the heatmats today, regulary?
Where can I find a simple chart for various seeds of: seeding rate, planting depth, ideal medium, germination time, blackout time, time to harvest, and typical yield?
We are working on a list like that right now and hopefully it should be ready in a few days! We will make a video about it when we drop it to our website so everyone can have it!
@@OnTheGrow where will you post it? The most frustrating part of getting started with microgreens is how convoluted so the information can be. No body has it all organized in one place. I have to sit through hours of webinars when what I need in the moment is 5 numbers off of a chart.
Totally agreed! Go to our website and fill out our contact form, I’ll email you what we have so far!
@@OnTheGrow I would also like list please.
People who live in southern states: I am 12 parallel universe ahead of you
I just watched your Sunflower walkthrough! What can you use instead of Hydrogen Peroxide, since it's sold out everywhere?
Great question! White vinegar will work, so will oregano oil, neem should work well also... I think there are a few other options as well, let me know and I can find more!
@@OnTheGrow Thank you for the quick responses! I just got my first sunflower seeds from TrueLeafMarket and I'm excited to start!
Are you all saying Seed Hole or Seed Hull?
Can you kindly give a link to the trays you use. In your store on amazon there is not clear what are you using in this video.
Why would you use a slotted tray over a mesh? And vice versa.
What are the benefits of both?
Great question! We love the mesh because we feel they are more versitile. They are best for hydroponic mats, but they also work well with soil if you keep the soil moist. If the soil is dry, it will fall through the mesh and get really messy. The slotted work well overall, but restrict the roots a little when using hydroponic mats. They are really great for soil. Hope that helps!
Как называется растение с большими листьями в синем лотке?
what seed density do you use for sunflower? I keep getting mold/
We use about 125grams per tray and mold is pretty normal. Most growers sanitize thier seeds when soaking. They will use a little bit of bleach or white vinegar. Personally, we just try to keep the seeds moist but not too wet and keep them from getting too hot. If we get mold, we will spray it with food-grade hydrogen-peroxide to stop it. Rinse your seeds before planting too... Hope that helps!
Great video as usual! I have learned so much from you two.
Can you please do a test with MycoGrow For Vegetables from fungi.com and see if it makes a difference in growth and quality.
Thank you and Happy Easter!
So my question is, why not germinate in a higher temp room?
increasing the temp of whole room is more expensive
What was the control temperature?
Great question! Since this one was in our house, it was at 76F…. Sometimes because the the lights, the temperature can increase up to around 80F.
Did you say your soak process was NOT Ph balanced? If I heard that correctly, why not ph balanced? I thought ph was important!! I’m confused! Thanks for all you do
Correct! What we’ve learned is that every single batch of sunflowers is completely different. The batch we pH balanced needed it to germinate well, but now we have sunflowers that actually don’t need a soak or anything at all. They germinate stronger without any kind of soaking. So now when we get sunflowers, we test them with several techniques such as soaking for different times and no soaking to see what germinates best. Then we use that going forward with that batch! Hope that helps! 🤗🌱🌱
On The Grow thank you!
Do you have an exact email for PayPal, I do not use my phone to pay for items, so I need the email to be able to make a payment for you,
Love your videos! ... I went to Vivosun.com to purchase some heat pads. Unfortunately, there was a problem ordering. I have emailed Vivosun multiple times with no replies : ( ... I decided to look at reviews of the company. Unfortunately there are many negative reviews of this company regarding their customer service: sending broken products, not refunding orders never fulfilled, and basically not replying. Do you know this company to be reputable? I'd prefer not to lose $100.
As if i'm not sucking enough electricity already with this operation. Oy vey.
Seed holes? Seed holes? I feel almost certain you could pronounce "hull" if you tried. It really would be less confusing.
I know your comment is two years old but I just saw it, and it's really mean spirited.
Yeah, we tend to ignore most comments like this. 🤗