Terps
Well-Known Member
I have an Aerogarden that disagrees with you.....
Why Not Miracle Grow ??
- Thread starter tbell40
- Start date
Dr. Who
Well-Known Member
This is wrong and a big misconception! The mix ratio is high......so what do you get when you use 1/3 of the charted amount? How about 1/4? How about 1/6?
The actual ratio of MG is 3-1-2....That is one of the most accepted ratio's for growing cannabis.
Why do powder lovers use 10-10-10 or 20-20-20 and do well? Jack's classic is most likely the most used powdered nutrient out there. What is the label concentration?
20-20-20!
Some like Jack's classic citrus - for the added compounds that MJ likes. 20-10-20, 1/4 tsp = 5 - 2.5 - 5,,, that's pretty damn good..eh? Working value anyway, right?
Help you understand powdered nutrient use better..
That would get it CLOSE , you are correct,
But still WAY to high on N .
But it should at that ratio do OK .
The nute shown has 24_8_16 .
How you going ajust it down to 3 N ?
24-8-16 is the percentage of npk by weight
24-8-16 and 3-1-2 are the same ratio, another words there's 3x's as much N as P
2x as much K as P Hopefully that makes sense.
I am with you on powdered nutes being as good as anything else .
I appreciate your response but I think there are a lot better formulas for marijuana , the PK for the formula would be to low by the time you ajust for the N it drops the PK to low.
It would work not just very well .
Something with a 5_ 30_30
Would work better , just my opinion .
Almost all of the nite company's use a salt based system you just pay them a pile more for the same thing with water added to it watered down.
I am on your side, I just do not agree with those ratios
Rolla J
Well-Known Member
Just like a math problem. Gotta break it down to its simplest form. The common dominator in that high nute formula is 8. Divide each ratio by 8 and you get 3-1-2
I understand that , I would never grow with a PK rate of 1 and 2 .
I want a NPK of 2.5 -15-15 .
Or 2.5-10-10 .
Just me opinion , I've seen it work really well . Don't fix it if it ain't broken
Chunky Stool
Well-Known Member
Math is your friend, friend.
Common denominator...
I have no idea what you are talking about . You want to grow with NO PK go ahead .
MonkeyGrinder
Well-Known Member
Meh I've used the powdered nutes loads of times. The tomato formula is a good all around blend for dope through the whole cycle. The normal blue formula IMO the nitrogen is too high to use full strength unless your girls are huge.
The liquid concentrate though is pretty awesome and you don't have to cut it down. It's milder on the NPK (Roughly half) but still has the same micro amounts.
The liquid concentrate though is pretty awesome and you don't have to cut it down. It's milder on the NPK (Roughly half) but still has the same micro amounts.
Dr. Who
Well-Known Member
Ok, look back at that 1 tsp of Jacks citrus being 20-10-20.
What would a 1/4 of a tsp be?
Grasp the concept now?
Also, your call of 10-30-30 would fry the shit out of cannabis! WAY too high P and K.
In bloom, with bottled nutrients. I run 4-6-6. Some need less by strain and I adjust for that. At the last few weeks I reduce to 3.5 - 2.5 - 3.5 to be sure the THC concentrations are not fucked by the K levels. I also stop a MgSO4 and K2SO4 supplements for the same reason. Increase the Ca a tic, and the soil has been amended at the start with a mix of Fe, MnSO4, CuSO4, and ZnSO4 to increase THC concentrations.
I've had the concept of basic math since the third grade,
Damn I'm not a kid , I actually got taught math in school way way back when.
This is why you would use at half ,1/4 1/3 strength whatever you want to cut it to .
It's not hard to figure out
The stronger the nute the more you cut it making it more economical .
What I am getting at is I do not like the NPK rating on that particular bottle of MG I do not like , because after cutting it to get the N where you need it you PK drops to levels that I do not like at all.
What I am saying is there are nutes that could be used that when cut you would still have a higher PK .
But you guys have been cool , if you like a PK of one , yes you could add other things in to boost the PK up, or just use a nute more suitable .
5-2.5-5 .
Dr. Who
Well-Known Member
Gotcha......Guess this goes back to the point I made about The COO of Scott's admitting in an interview. That MG ferts are NOT formulated for cannabis.....It can be done but,,,,,,why?
Peace to ya....Max.
You too brother
Chunky Stool
Well-Known Member
TacoMac
Well-Known Member
Yes I do. Exclusively. It's cheap, it works, and it works well.
I always net between 4 and 6 ounces per plant. I top each one once and let 'em go. I mix in some perlite and lime (about 35% perlite to potting soil and about 8 tablespoons of lime) in regular, cheap nursery pots. I use the regular, general purpose miracle grow fertilizer (1/2 teaspoon per gallon RO water) for veg ( I usually wind up only using it once about week 5 right when I switch to flower) then I use the tomato formula for flower mixed the same way as needed. (That's typically ever week and a half.)
I've never had a problem.
vostok
Well-Known Member
Overview & Benefits
- Grows plants twice as big!® (vs unfed plants.)
- Feeds up to 6 months
- More blooms for more color (vs unfed plants.)
- For indoor and outdoor container plants
- For use in containers
I doubt very much if the mix has altered very much in the 6 years you stated
I can assure you the company has changed...very much
Scotts is owned by Monsanto
Monsanto is now owned by Bayer of Germany
if you ever need any Zyklon B ...?
Observe & Report
Well-Known Member
What did they do to make their dry ferts not compatible with Cannabis growing?
TacoMac
Well-Known Member
Unfortunately, people are stupid. There's absolutely nothing wrong with Miracle Grow products. As stated before, it's all I use.
Sadly, people are idiots. They think more is better. They think if they're not feeding their plants every single day then they're not doing it right.
Just take a look around all the problems people have in this forum. 99% of the time, it's burnt, over fertilized plants.
With some basic math skills, and common sense, and doing the unthinkable like reading the directions, miracle grow gives the same results if not better than anything else out there.
But again, sadly, people are idiots...so it's not for everybody.