Potassium in Aquaponics (Part 2 of 4) - Potassium in Your System
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- เผยแพร่เมื่อ 29 ก.ย. 2024
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This is the second video in the Bright Agrotech series on potassium in your aquaponics system. Today, Dr. Nate Storey discusses how potassium interacts in YOUR system.
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Hi Nate, I have a question that I'm sure if already answered throughout the internet, but I trust your opion much more than others. Will adding blended banana peels to the growbed, along with red wigglers, actually supply ample amounts of potassium for fruiting vegetables like jalapenos, beans, or tomatoes? Or would baking them to a crisp, crushing them, and then adding them to either the growbed or sump be a better option? The reason I'm asking is because I'm trying to do this the most organic way possible. Like my ancestors use to do lol.
I'm also broke can't afford nor trust chems.
I've wondered something similar myself ...
Might try feeding my goldfish some banana slices & see if that works.
Nice to know someone else is thinking along the same lines!
Hi! What do you think about Carbonates in system? Need I have kH (Alkalinity) or not? I’m aquarist and I use RO water without Co3 Ions. Maybe, it’s wrong for my aquatic plants..? Thanks
how to maintain pH in aquaponic without using calcium carbonate CaCO3 , calcium magnesium CaMg(CO3)2 or NaHCO3 sodium NaHCO3
I'm rearing crayfish and they require very hard water which is 150ppm calcium carbonate. How do I balance this with aquaponics?
Very useful information from ur videos now I know everything about aquaponic im looking forward to start business but I will farm strawberries . Which onedo u think is better aqu/strawberry or hydroponic/ strawberry ?
Hi, moha kaissi - It really depends. They can grow very well with aquaponics, but most of the time hydroponics works the best as far as maintaining control of your crop. Best of luck!
Hey, I'm just starting in hydroponics. Could you please tell me why leafy crops such as Lettuce and chive require more potassium than nitrates? Thank you
Thanks a ton for these videos, Nate. You're a terrific speaker and informal professor. I was recently asked about Phosphorous and Potassium in aquaponics verses hydroponics by a shopkeeper in my local hydro store. I didn't have an answer being only a month into AP with no prior experience growing anything. I told him I'd do the research and let him know what I found. I found little that was helpful. Nothing really. So this series is greatly appreciated and very timely. Thanks again.
Nate, thank you for doing so many in-depth views on how to set up and operate an Aquaponics system! You are doing a great job at helping all of us who create and build outside of standard operations. I love seeing Aquaponics become more and more accepted by the world. Thanks for contributing to this facing ting community!
Hello
I've enjoyed your (Nate) videos for a long time, and found this one on K. I just started up a small farm, Feather Dog Farm, in Grass Valley, CA. This is my third aquaponics system, and the first one where I'm growing greens for local sale to farmers markets. I'm really trying to get the nutrients dialed in as our survival / income depends on it.
Something isn't right, and I don't know how to test it, where to send tests, or how to diagnose, so keep researching. the problem could be too much or too little, K, N, Fe, Mg, Ca, etc. They all create yellowed leaves with subtle differences I haven't mastered.
I just added Langbeinite to my system, as I suspect a K deficiency, but don't know what's going on truth be told. I'll see if you've published 3 and 4 of this series yet but am guessing I'll have to wait, so subscribed so I don't miss it.
I'm also adding iron chelate....aquairon, as perhaps I have an iron deficiency. N is a bit low, but I have 1,000 square feet of plants, most looking great but a few with pale / yellowed, or the red komatsuna leaves are pale to whitish rather than deep burgundy red.........most are red, a few are pale yellow to white...........and the same yellow / white pale color exists in green leafed plants as well, especially the summerfest komatsuna...........most plants are lettuce varieties so perhaps the Asian greens need or are toxic in something lettuce is ok with??
looking forward to finding your other videos and or any resources to distinguish between K, N, Fe, Mg deficiencies so that I know where I'm off in my nutrients.
I have hundreds of mosquito fish from local pond in deep water tables, 600 square feet, with another 400 in other tables systems. I'm adding organic nutrients like seabird guano, bat guano coming soon, langbeinite just added and iron chelate also just added as I suspect the problem is Fe or K.
Any thoughts on what Komatsuna might be sensitive to that lettuce in general is not?
Thanks and I really enjoy your videos, keep them coming.
rt
Sorry to hear about your deficiencies- we've put up a few more videos now and we also have a free key for diagnosing deficiencies- there's a link in a video on this playlist. Let us know if you can't find it. I think it will help you out, and it's free!
well presented video ! one of my pet peeves are the guys who feel they must give you their life story before just getting down to the reason you want the info in the video
well done !
Hi Dr Nate, I have a IBC sys and growing Tomatos and chillies, sys is running at pH 6 to 6.5 with 0 ammonia and around 10 ppm of Nitrate. My totamato plants are growing fantastic but the chillies are not and the top part is kind of getting smaller leaves and getting dwarf but green. I am unable to figure out why these two plant are growing in a different way in the same IBC next to each other. Any suggestions??
Heeradevi, tomatoes and chillies are very different plants with different growth habits, so it's tough to compare them. If either of them are showing signs of deficiency (yellow spots, burning, necrotic spots, etc.) or symptoms of disease then that might be different. If you have pictures that show the problem, feel free to send them our way at info (at) brightagrotech.com. We'd be happy to take a look.
Hi how much Potassium Sulfate can I use in my system about 1400 gal tank 200 tapilia and raft 120 plants
Hi Naeem Richards - have you read all of our posts on Potassium? brightagrotech.com/potassium-in-aquaponics/
Hey Nate, yet again I humbly seek your expert advice.
What should i be using to bring up my systems carbonate hardness?
I've been using using a mix of crushed coral (CaCO3) and Na2CO3 too supplement carbonates, I also use KOH to bring up the potassium in my system.
My water's general hardness stays low/soft because the system is filled up with rain water.
To me this seemed like a fool proof combination...
Cheers Chris, I appreciate you taking the time to answer me but I'm not sure I can take your advice;
I need to use SOMETHING to raise my carbonate hardness (KH) - My water is topped up by very soft rain water, rain in my area normally tests at around 30mg/l TDS on average, 5.9 PH, 0 KH.
Without the crushed coral, the PH swings like crazy and I see calmag deficiencies.
You said " Lowering the carbonate hardness of your water will allow you to see pH lowering"
I dont want to see my PH lowering, it typically fluctuates between about 5.9 and 6.3, thats low enough for me.
You said "high level of carbonates will have on your system is the potential for a major pH swing with little to no warning."
I learned that buffering the KH will prevent major PH swings - NOT cause them, which seems to be in conflict with your advice.
Noam Chongsky In your specific instance I would recommend the use of calcium carbonate as part of your pH moderating regimen. You have to be thoughtful about it though. Never add carbonates to flatline pH. You want to consistently see them trend downward back to the "natural" pH state of your system. Also you should be using calcium carbonate in conjunction with hydrated lime and KOH or another K supplement to prevent the dreaded Ca-Mg-K interference. I always tell folks to pick the one you have the hardest time with and apply it foliarly in some way. Most systems I recommend staying away from Calcium Carbonate just because the top-off water is very hard in most of the US. For you, it's ok.
Maybe my beard just isn't quite bushy enough for aquaponics...