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- #221
Smokiemcpot19
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Would you believe nitrogen deficiency or nitrogen toxicity? I'll be upping the nitrogen ppm to 106 on today's feeding as per farsides wizard magic recipes
Smokiemcpot's Perpetual Pot Plant Paradise
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- #223
Smokiemcpot19
Well-Known Member
Thanks for that @InTheShed your the bee's knees homie.
Looks more like nitrogen def with maybe a tab start of cal/mag def.
I'll give the chunky pre teens more food today!
Looks more like nitrogen def with maybe a tab start of cal/mag def.
I'll give the chunky pre teens more food today!
For future reference, save this somewhere (it blows up a lot bigger than this displays):
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- #225
Smokiemcpot19
Well-Known Member
Shit yeah fam I need to make that into a laminated poster for the grow room! Thanks again
Search for the PDF version on line. It blows up even more. That makes reading it easier on my aging eyes.For future reference, save this somewhere (it blows up a lot bigger than this displays):
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- #227
Smokiemcpot19
Well-Known Member
So after reading the info on mag def it says it would start 4-6 weeks before showing signs on the plants? Mine are 21 days old so still possible?
It sounds like it might be boron def also!
It sounds like it might be boron def also!
Most reputable brands of nutes contain all the micro-elements you need so that shouldn't be an issue if you use them at strength. I'm still wondering about light stress though as most Mg deficiencies start in the veins and not on the edges of the leaves.
Don't overthink it. You are better off treating it as an N deficiency, and checking the results. Let her grow for a while and then re-assess the situation.
Would you believe nitrogen deficiency or nitrogen toxicity? I'll be upping the nitrogen ppm to 106 on today's feeding as per farsides wizard magic recipes
For those playing along at home, this is what my spreadsheet came up with, along with referring to GH's site for proportions. Using the products he has on hand:
5ml Gro
5ml Micro
2.5ml Bloom
4ml Cal Mag
1ml Diamond Nectar
4ml Armor Si
1ml Rapid Start
2-1-3 N-P-K and 106 ppm of N.
What volume of water is this for?
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Smokiemcpot19
Well-Known Member
Gallon
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- #233
Smokiemcpot19
Well-Known Member
So I made up that mixture using a gallon of distilled 0 ec, 0 ppm water and this is what Im getting after phing to 5.9
Idk what the whole ec thing means in full scientific detail or even how to properly read the meter lol. I know it means electrical conductivity but that's about it lol I'll read more into it.
These numbers looks alright to those of you know what they actually mean?
@farside05 @InTheShed @Old Salt
Idk what the whole ec thing means in full scientific detail or even how to properly read the meter lol. I know it means electrical conductivity but that's about it lol I'll read more into it.
These numbers looks alright to those of you know what they actually mean?
@farside05 @InTheShed @Old Salt
I'm guessing there's a decimal point in that EC number I can't see. Is that with just pH down/up?
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- #235
Smokiemcpot19
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No that's with the entire nute mix we discussed up top of page and then pH down to 5.9
If there is a decimal point, then your EC is 1.588. To convert EC to PPM is just x1000/2, so 1588 / 2 = 794, so close to the PPM reading in the second pic.
When I used to mix up FoxFarms nutes and measure the PPM, that's a number I would be close to later in veg, shortly before flip. I don't use the nutes you have so I don't know what numbers they recommend for each stage of growth though.
When I used to mix up FoxFarms nutes and measure the PPM, that's a number I would be close to later in veg, shortly before flip. I don't use the nutes you have so I don't know what numbers they recommend for each stage of growth though.
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- #237
Smokiemcpot19
Well-Known Member
I don't have a decimal point that I can see on this meter.. just 0000
TDS = Total Dissolved Solids, measured in PPM or Parts Per Million
EC = Electrical Conductivity measured in µS/cm
Both are measured in the devices we use by passing an electrical current through the nutrient solution. The relationship between EC and TDS is often expressed as EC = PPM * 1000/2 for sodium chloride (salt) solutions.
OK, that's the background. The more nutrients you add to your solution, the higher the EC and TDS. Both are a measure of the strength of your nutrient solution. Now, how are they used? The water you use will have both an EC and TDS. It's much higher in municipal and well water, than in water from an RO, or distilled water. As you add nutrients to the water, the EC and TDS will rise. When you have added the proper amount of nutrients and take am EC or TDS measurement you will get a basis for that stage of your growth.
If you are running a drain to waste system, that measurement will not change appreciably for the seven day or less life of your nutrient solution. You may see some adhere to the walls and bottom of your nutrient container, but the EC/TDS will not change much.
If you run a system where the run off is pumped back into a reservoir, or a non-recirculating system like DWC where the roots are constantly in the nutrient solution, the plant(s) are constantly pulling nutrients and water from it. This changes the EC/TDS of your nutrient solution as ALL of it is available to your plant. For these systems it's a daily task to bring the strength back to its original value. If the TDS is too high, you add water, too low and you need to add nutrients. As the week goes by, your plants also use up water, increasing the TDS.
So, in summary, TDS or EC is used to measure the conductivity of our nutrient solutions. The higher the EC or TDS reading, the stronger our nutrient solution is.
EC = Electrical Conductivity measured in µS/cm
Both are measured in the devices we use by passing an electrical current through the nutrient solution. The relationship between EC and TDS is often expressed as EC = PPM * 1000/2 for sodium chloride (salt) solutions.
OK, that's the background. The more nutrients you add to your solution, the higher the EC and TDS. Both are a measure of the strength of your nutrient solution. Now, how are they used? The water you use will have both an EC and TDS. It's much higher in municipal and well water, than in water from an RO, or distilled water. As you add nutrients to the water, the EC and TDS will rise. When you have added the proper amount of nutrients and take am EC or TDS measurement you will get a basis for that stage of your growth.
If you are running a drain to waste system, that measurement will not change appreciably for the seven day or less life of your nutrient solution. You may see some adhere to the walls and bottom of your nutrient container, but the EC/TDS will not change much.
If you run a system where the run off is pumped back into a reservoir, or a non-recirculating system like DWC where the roots are constantly in the nutrient solution, the plant(s) are constantly pulling nutrients and water from it. This changes the EC/TDS of your nutrient solution as ALL of it is available to your plant. For these systems it's a daily task to bring the strength back to its original value. If the TDS is too high, you add water, too low and you need to add nutrients. As the week goes by, your plants also use up water, increasing the TDS.
So, in summary, TDS or EC is used to measure the conductivity of our nutrient solutions. The higher the EC or TDS reading, the stronger our nutrient solution is.
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- #239
Smokiemcpot19
Well-Known Member
Thanks @Old Salt so is mine high for day 21? These nutrient readings that is.
The EC/TDS of the nutrient solution does not matter when it is first mixed. What matters is the accurate measurement of the water, and everything you add to it.
When everything is accurately mixed, take an EC/TDS reading if you recycle the run off in a drain-to-waste system or you use another type of hydroponics. This becomes your target when you adjust that solution.
If you run drain-to-waste, EC/TDS simply does not matter.
I do not recommend coco for anything but a drain-to-waste system, as the nutrient solution will pick up material from the coco and change the EC/TDS. This will make it very difficult to bring the run off back into spec as far as the nutrients are concerned. I don't re-cycle my run off. I use it to water my lawn.
When everything is accurately mixed, take an EC/TDS reading if you recycle the run off in a drain-to-waste system or you use another type of hydroponics. This becomes your target when you adjust that solution.
If you run drain-to-waste, EC/TDS simply does not matter.
I do not recommend coco for anything but a drain-to-waste system, as the nutrient solution will pick up material from the coco and change the EC/TDS. This will make it very difficult to bring the run off back into spec as far as the nutrients are concerned. I don't re-cycle my run off. I use it to water my lawn.
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