The Best N-P-K

F

findme

Well-Known Member
danny12 said:
got a quetion

how about fox farm? ive heard its pretty good
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npk ratios.. you gotta be specific. which stage of development?

Uncle Ben said:
1 Tablespoon of any food at the salts level of theiri 20-20-20 or 10-30-20 is high PPM! That strength is normally reserved for plant grown in native soil, outdoors, not indoor potted plants. I have never used more than 1 teaspoon per gallon of Jack's foods and I have been using them for 30 years. I guess you could get away with it for large plants with massive root systems, but even then I think I'd only be using such a dose dissolved in salts free rain water or such. The 20-20-20 is gonna be safer being that the N source is mostly urea which is a slow release form of N.

Excessive leaf yellowing during flowering is usually grower induced, using the wrong food. High P foods induce stretch too.

Their petunia food, 20-6-22, might be as good if not better than the 10-30-20 for flowering. It's more balanced and has alot of Fe and Mg to keep things green. ;)

UB
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This is the truth. plenty of times you can see noobs over ferting by using the recommend dosage on miracle grow thus burning the shit out of their plants. then they end up buying weaker ferts that are less concentrated thus causing them to spend more money when all they had to do was to use less ferts in the first place.

Do you think the P could be higher for their petunia food? I mean, is 6 a good amount of P for flowering?
 
G

gobbly

Well-Known Member
15 pages to say that the ideal amount of N is as much as the plant can take without burning... What other answer would there be?
 
I

indoorman

Member
Use living microbes in your soil they feed the plant just what it needs when it needs it. Use your regular nukes and add some Quantum Growth they will regulate the npk perfectly for the plant. Keep your soil alive and healthy. But like ganga smoker said Ph is the most important to me also. Not as much in my soil grow but very sensitive in the hydro room. Look at Douglas Speed and Associates out of fl. or check out their web site. Happy growing Indoorman
Legalization could be hazardous to my bank account.
 
Uncle Ben

Uncle Ben

Well-Known Member
gobbly said:
15 pages to say that the ideal amount of N is as much as the plant can take without burning... What other answer would there be?
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1. For starts, this topic doesn't belong in Advanced. If folks don't understand plant nutrition, Basic type stuff, they shouldn't be growing.

2. There are no absolutes. A plant is not a car, it may take more or less than 5 quarts of oil to keep it running smoothly.

A 18-5-9 may have all the P your plant requires to provide a high flower yield.
 
F

findme

Well-Known Member
Uncle Ben said:
A 18-5-9 may have all the P your plant requires to provide a high flower yield.
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I'm guessing if a 18-5-9 may have all the P your plant requires, a 20-20-20 ( probably a bit too much) or even 20-10-10 should definitely have all the p your plant requires.
 
W

wannaquickee

Well-Known Member
Uncle Ben said:
1. For starts, this topic doesn't belong in Advanced. If folks don't understand plant nutrition, Basic type stuff, they shouldn't be growing.

2. There are no absolutes. A plant is not a car, it may take more or less than 5 quarts of oil to keep it running smoothly.

A 18-5-9 may have all the P your plant requires to provide a high flower yield.
Click to expand...

I know you know..but to much N during flowering will make the plant flower for a longer period of time..and ripen less quickly.
 
C

ColoradoKid

Member
Uncle Ben said:
1 Tablespoon of any food at the salts level of theiri 20-20-20 or 10-30-20 is high PPM! That strength is normally reserved for plant grown in native soil, outdoors, not indoor potted plants. I have never used more than 1 teaspoon per gallon of Jack's foods and I have been using them for 30 years. I guess you could get away with it for large plants with massive root systems, but even then I think I'd only be using such a dose dissolved in salts free rain water or such. The 20-20-20 is gonna be safer being that the N source is mostly urea which is a slow release form of N.

Excessive leaf yellowing during flowering is usually grower induced, using the wrong food. High P foods induce stretch too.

Their petunia food, 20-6-22, might be as good if not better than the 10-30-20 for flowering. It's more balanced and has alot of Fe and Mg to keep things green. ;)

UB
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Thank you for the information Uncle Ben! I switched to Dyna Gro from GH 3 part and the plants are doing well. I also have some Jack's Dynamic Duo ordered and should be here soon.
 
ClamDigger

ClamDigger

Active Member
Uncle Ben
i recall you asking why hydroponic nutrients have such a high level of K compared to other basic nutrients.
i believe i have found the answer in a book called "The New Organic Grower".
most native soils contain lots of Potassium that is locked in the the less then ideal dirt because of PH and soil structure.
in hydroponics there is no soil, so more potassium is added to the nutrient solution.
hope i helped

Clamdigger
 
Uncle Ben

Uncle Ben

Well-Known Member
ClamDigger said:
Uncle Ben
i recall you asking why hydroponic nutrients have such a high level of K compared to other basic nutrients.
i believe i have found the answer in a book called "The New Organic Grower".
most native soils contain lots of Potassium that is locked in the the less then ideal dirt because of PH and soil structure.
in hydroponics there is no soil, so more potassium is added to the nutrient solution.
hope i helped

Clamdigger
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Double check your resource. Phosphorous is normally locked up in native soils, not potassium.

ColoradoKid, I think your plants (and your pocketbook) will happy with those foods.

Good luck,
UB
 
cannawizard

cannawizard

Well-Known Member
so whats the question.. best kind of NPK? or best formula for NPK?? :)

*well there is no "best" in growing, theres only Better. But if i had to pick one under "best kind of NPK", id go w/ more natural sources of NPK (like compost teas).. DWC setups love it~
*ill leave the "best NPK formula" blank since everyone has their own, cheers
 
O

orcname

Member
I've recently been making my own micro and macro nutrients. For the macros, I use Excel to help me in the proportions of urea, phosphate, and potassium chloride to achieve the NPK of Dutchmaster. It works perfectly and is WAY cheaper.

YouGrowBoy said:
One thing I've been researching but can't find is what other plant that the can be found at nurseries does MJ closely resemble?

I've been looking at the various blends at http://www.jrpeters.com/jacks/products.html and which plant mimics that of MMJ. If you view the page you'll see different blends for different plants.

It appears that the Petunia Feed (20-6-22) is close to what GH uses for MaxiGro (10-5-14) and the Jack's Bloom Booster (10-30-20) is a good formula for bloom.
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