D
dongle69
I've never experienced that.
I'm woman enough to shake the bottle first, though.
I'm woman enough to shake the bottle first, though.
-
ICMag with help from Landrace Warden and The Vault is running a NEW contest in November! You can check it here. Prizes are seeds & forum premium access. Come join in!
kaljukajakas said:
I make a bloom and a grow formula - I finished them 25 years ago and tested them out on my hydros... they used two 100 gallon reservoirs and I had 6 lights going... worked perfect so I've used the formulas ever since, 10 years with hydros (5 years at my friends) and 20 years with soil.... I thought the prices of hydroponic fertilizers were outrageous and didn't like making the fertilizer companies rich.... back to the Lucas formula
I think I understand the lucas formula now with kaljukajakas and Blunts help. It seems to be somewhere between a grow and a bloom formula. A straight bloom formula would be lower in nitrogen and higher in phosphorus which is why Blunt uses additives.... What is the ec of your "1400PPM in flower as a MAX"?
Back when I ran hydros I would fill the reservoir only 1/4 full with water and use the normal amount of ferts... this was to try to stop the stretch when going into flower... wish I'd had an ec meter, it was probably over 8 ec, I must have a very tough plant....
In soil now I use an ec of 3 or more in flower.
Back when I ran hydros I would fill the reservoir only 1/4 full with water and use the normal amount of ferts... this was to try to stop the stretch when going into flower... wish I'd had an ec meter, it was probably over 8 ec, I must have a very tough plant....
In soil now I use an ec of 3 or more in flower.
Again, it's a strain thing. My Thunk topped out at an EC around 1.4. My Destroyer was up to 2.2 but is now down to 1.9
if anyone, or more less, everyone, would just google ''ask lucas'', it takes you straight to the mouth of babes.
i recently finished reading, in depth, the entire thread, and let me tell you, it changes everything. why? because it works. my first reaction to 8-16 ratio, even when starting out, is that would burn my plants. negative. 8-16 doesnt have enough nitrogen to burn plants, the formula is a perfect balance for growng a wide variety of strains. any strain, for that matter, because it formulated to have all the nutrients, macro and mico, at any given time the plant or strain may need. truly that simple.
still doubt me? lucas still post on that ''ask lucas'' thread. and he himself states that only use 5-10 for low light, it is not a veg formula at all. use 8-16, all the time. no flushing, no additives, no guesswork.
and if you know anything, its that plants dont use nutrients for growing, only for TRANSPORTING what they need to grow, carbon, oxygen, etc.
i recently finished reading, in depth, the entire thread, and let me tell you, it changes everything. why? because it works. my first reaction to 8-16 ratio, even when starting out, is that would burn my plants. negative. 8-16 doesnt have enough nitrogen to burn plants, the formula is a perfect balance for growng a wide variety of strains. any strain, for that matter, because it formulated to have all the nutrients, macro and mico, at any given time the plant or strain may need. truly that simple.
still doubt me? lucas still post on that ''ask lucas'' thread. and he himself states that only use 5-10 for low light, it is not a veg formula at all. use 8-16, all the time. no flushing, no additives, no guesswork.
and if you know anything, its that plants dont use nutrients for growing, only for TRANSPORTING what they need to grow, carbon, oxygen, etc.
The lucas formula can be achieved from almost any nutrient brand. Here is a link to a nutrient calculator and a guaranteed analysis of most major brands. www.angelfire.com/cantina/fourtwenty
0-8-16 is what lucas recommends for both veg and bloom under high intensity lighting. Photosynthesis occurs in direct proportion to gross photon flux. The higher the rate of photosynthesis the greater the nutrient strength can be, up to a point.
On gh's website there is a professional drain to waste schedule that recommends 7.5 ml per gallon for both veg and bloom for the flora nova series. They came up with this after the lucas formula became well known. it is remarkably close to 0-8-16 if your were using the three part package.
I have no experience with the gh three part series but have been using flora nova bloom in all phases for years with excellent results. I have tried using flora nova grow for the veg phase and ended up with much taller plants with stretched out buds that did not produce more bud weight than fnb alone.
Flora nova bloom is the only nutrient I use throughout a grow including clones.
I have used fnb for years with ro water and have never needed calmag. My plants are visually perfect with no spotting, curling, or other manifestations of deficiency. I have used the complete pure blend pro line, techniflora line, and some others and you will definitely need a calmag additive with most using ro water. But, I grow sweet tooth # 4 and believe this whole issue is strain dependent. Experiment. See what your plants need.
I believe fnb is a complete nutrient package and nothing else is needed. The only drawback to it's use is that it is extremely thick and hard to mix completely every time you use it. Unless it is mixed completely every time you start developing nutrient imbalances, which, by the time you reach the end of a bottle, could translate into nutrient deficiencies.
My solution to this is to dump an entire gallon into a five gal bucket, add three gallons ro or distilled water to it, and stir with a paint mixer attachment on a drill. Immediately pour into four one gallon containers.
This thins it to the point where all you need is a brief shaking before each use. You multiply by four to compensate for thinning. Therefore, gh's 7.5 ml per gallon becomes 30 ml per gallon, and so on. You still get the same nutrient ratios every time.
Well, I hope this helps someone. Later, delta9nxs
0-8-16 is what lucas recommends for both veg and bloom under high intensity lighting. Photosynthesis occurs in direct proportion to gross photon flux. The higher the rate of photosynthesis the greater the nutrient strength can be, up to a point.
On gh's website there is a professional drain to waste schedule that recommends 7.5 ml per gallon for both veg and bloom for the flora nova series. They came up with this after the lucas formula became well known. it is remarkably close to 0-8-16 if your were using the three part package.
I have no experience with the gh three part series but have been using flora nova bloom in all phases for years with excellent results. I have tried using flora nova grow for the veg phase and ended up with much taller plants with stretched out buds that did not produce more bud weight than fnb alone.
Flora nova bloom is the only nutrient I use throughout a grow including clones.
I have used fnb for years with ro water and have never needed calmag. My plants are visually perfect with no spotting, curling, or other manifestations of deficiency. I have used the complete pure blend pro line, techniflora line, and some others and you will definitely need a calmag additive with most using ro water. But, I grow sweet tooth # 4 and believe this whole issue is strain dependent. Experiment. See what your plants need.
I believe fnb is a complete nutrient package and nothing else is needed. The only drawback to it's use is that it is extremely thick and hard to mix completely every time you use it. Unless it is mixed completely every time you start developing nutrient imbalances, which, by the time you reach the end of a bottle, could translate into nutrient deficiencies.
My solution to this is to dump an entire gallon into a five gal bucket, add three gallons ro or distilled water to it, and stir with a paint mixer attachment on a drill. Immediately pour into four one gallon containers.
This thins it to the point where all you need is a brief shaking before each use. You multiply by four to compensate for thinning. Therefore, gh's 7.5 ml per gallon becomes 30 ml per gallon, and so on. You still get the same nutrient ratios every time.
Well, I hope this helps someone. Later, delta9nxs
I may be missing something here but when I do the math I don't come up with the same final # that's given as the example. What am I doing wrong?
I come up with.........50.6 mills
Here is my method:
1330-947 divided by 1330 x 8 x 22 = 50.6
How does the example get to 53?
Here's another question. Can I start using this formula in the middle of a grow? Or is it something I need to start with right at the beginning. (probably a dumb question)
Thanks,
Pirate
I come up with.........50.6 mills
Here is my method:
1330-947 divided by 1330 x 8 x 22 = 50.6
How does the example get to 53?
Here's another question. Can I start using this formula in the middle of a grow? Or is it something I need to start with right at the beginning. (probably a dumb question)
Thanks,
Pirate
Last edited:
Y
yamaha_1fan
Anybody use the addback formula to start? Lets say you have a clean res, no nutes. PPM is 75. Use that as your current PPM, put in a target of 1000, then get the amount of nutes needed?
I have all my nute formulas in an excel sheet and printed hanging in my rooms. Too many different res sizes to keep track of. The excel sheet lets me play around with the lucas formula pretty easily.
I have all my nute formulas in an excel sheet and printed hanging in my rooms. Too many different res sizes to keep track of. The excel sheet lets me play around with the lucas formula pretty easily.
Pirate said:
Lucas has been asked that a lot. In his experience and in my own there's no problem with switching to Lucas Formula in the middle of a grow. (As long as you dump any nutrients and start a fresh res)
Strawberrycough
Member
remember kidos to use RO water
Y
yamaha_1fan
what if you dont use RO water?
Thanks Hydro,Hydro-Soil said:
Now what about the calculation question? Why do I get a different mills amount then the example? (read 3 posts back)
I have a 40 gallon rez and if I am off by 3 mills that equates to a 120 mill difference in my amounts for topping off.
Pirate
Y
yamaha_1fan
------------------TargetPPM---currentPPM----rez size
Flower Micro-------- 1330---------947---------22-------- 50.68270677
Flower Bloom --------1330---------947---------22--------101.3654135
((B21-C21)/B21)*D5*D21
B21 is target
C21 is current
D21 is res size
I tried my best to show how I have it setup in excel D5 is a cell i have to chnage the lucas ratio from 8/16 to 5/10/6/12 etc etc Substitute D5 with 8
But pirate long story short, my math comes out with 50.6 using the examples given. I think someone made a booboo
Flower Micro-------- 1330---------947---------22-------- 50.68270677
Flower Bloom --------1330---------947---------22--------101.3654135
((B21-C21)/B21)*D5*D21
B21 is target
C21 is current
D21 is res size
I tried my best to show how I have it setup in excel D5 is a cell i have to chnage the lucas ratio from 8/16 to 5/10/6/12 etc etc Substitute D5 with 8
But pirate long story short, my math comes out with 50.6 using the examples given. I think someone made a booboo
Last edited:
Y
yamaha_1fan
Pirate said:
ACtually it doesnt =120 mill difference.
Remember the formula is calculating the total amount to add back, not per gallon.
You are not going to take that 50.6 and multiply by 40 (gallons)
HUMBOLDT NUTRIENTS
HUMBOLDT NUTRIENTS
Happy New Year to y'all !!
Question about a Profile:
I want to use Humboldt Nutrients (I can get em cheap). The only difference I can find is in the Micro nutrients and it is very minor. Reading all the info on the Lucas Formula I see him saying that a wide variety of profiles seems to work. Most of the discussion seems to center around Nitrogen and Magnesium when eliminating the bottle of GROW. If Humboldt Nutes contain the same amounts of N & Mg as GH could I consider this an equal cross over? Again, the only difference in the MICRO bottle is (Iron at 1/2 a % and Molybdenum at .001% verses GH=.0008%)
The only other thing I find is that Humboldt Nutrients either does not contain OR does not list sulfur. Everything else is exactly the same.
I know I can go the trial and error route and will, but I don't want to screw up my grow if someone can say it won't work before I actually do it.
Thanks in advance,
Pirate
HUMBOLDT NUTRIENTS
Happy New Year to y'all !!
Question about a Profile:
I want to use Humboldt Nutrients (I can get em cheap). The only difference I can find is in the Micro nutrients and it is very minor. Reading all the info on the Lucas Formula I see him saying that a wide variety of profiles seems to work. Most of the discussion seems to center around Nitrogen and Magnesium when eliminating the bottle of GROW. If Humboldt Nutes contain the same amounts of N & Mg as GH could I consider this an equal cross over? Again, the only difference in the MICRO bottle is (Iron at 1/2 a % and Molybdenum at .001% verses GH=.0008%)
The only other thing I find is that Humboldt Nutrients either does not contain OR does not list sulfur. Everything else is exactly the same.
I know I can go the trial and error route and will, but I don't want to screw up my grow if someone can say it won't work before I actually do it.
Thanks in advance,
Pirate
Last edited:
Y
yamaha_1fan
1 liter = 0.264172052 US gallons
hehateme19
Member
So I didnt see anyone answer yamahafan's question about what if you dont use ro water? I to am interested in this. Is it like yamaha asked earlier do you just use the addback formula instead??
So if your ppm of tap water was 110 would you then subtract that from desired ppms and do the addback formula?
My ro/di filter is not working properly so Im not using ro water. I have been using the lucas formula for a couple of months now and it is working great. Just wondering though
So what about not using R/O water.......Help please
So if your ppm of tap water was 110 would you then subtract that from desired ppms and do the addback formula?
My ro/di filter is not working properly so Im not using ro water. I have been using the lucas formula for a couple of months now and it is working great. Just wondering though
So what about not using R/O water.......Help please
