Nutrients for flowering

Hi I’m just wondering if anyone can suggest a fertilizer to use for outdoor flowering stage. Preferably something that isn’t going to cost over 100 bucks or anything like that I used miracle grow bloom booster last year I think it was 15-30-15 would that be ok to use at about 1/3 of what it calls for? Thanks
 

Oldgoat1959

Well-Known Member
I'd start with 50-50 blend of these.
One gram or ml per gallon total each watering.
I only water near the rootball, where the nutrients have been depleted, as my mix is decent.

After a few weeks transition to only using the
Bloom.
Doesn't sound like much but it should be enough at the start. Adjust as needed.IMG_20210809_211245_01.jpg
 

bam0813

Well-Known Member
Was it ok last year? If it didnt get wet its fine. If your not organic or just didnt like it, Jack's . I heard all blue powder fert is samething. Rebranded
 

C. Nesbitt

Well-Known Member
If you are going with chemical nutes over organic, second the recommendation on Jacks. Jacks has done quite a bit of cannabis specific research and development for their products. Many growers using chemical nutes swear by Jacks. Jacks stuff is also slightly less hated on here than MiracleGro stuff :D

Check out the Episode 74 of the Cannabis Cultivation and Science podcast hosted by Tad Hussey - he interviews Dr Cari Peters who is a chemist JM Peters (company that makes Jacks). The host normally focuses on organic cultivation but this was an interesting episode on chemical fertilizers.

-Cat :joint::twisted:
 

crisnpropa

Well-Known Member
I'm also in need of a bloom fertilizer recommendation.

Would like something organic, not chemical.

I hear Jack's has heavy metals.
 

OnlyLST

Well-Known Member
Im using the hesi pack fertilizer for outdoor and doing amazing job she start smelling like crazy after put bloom complex for first time..
 

Oldgoat1959

Well-Known Member
IMG_20210819_081307032.jpgAt flower I'm putting 20 grams per gallon of the seabird guano with 8grams of the bat guano.
Stir occasionally for two days then add 4 grams per gallon potash.

Diluted to 1/8 strength for starters.
 

Oldgoat1959

Well-Known Member
I used to use Biolink 0-5-5 from Peaceful Valley.
It's just mined Rock phosphate and mined Potash dissolved and bottled.
Same as above without the bat guano which is giving a little nitrogen for the next few weeks.
Fed them yesterday and leaves are standing straight up today.
IMG_20210819_124535431_HDR.jpg
 

Oldgoat1959

Well-Known Member
They liked the feeding. I went with 454 g of the diamond k. Added it at the end, after the two days of stirring the 2290 g seabird and 1000 g of bat guano.
Diluted 50% more than usual to 180 gallonsIMG_20210829_120823503_HDR.jpg
 

Rurumo

Well-Known Member
Any of the major one or two part dry nutrients-Megacrop, Maxibloom, or Jacks. I'd just get a little bag of a one part that has the calcium/mag in there. If organic, any tomato food like Dr. Earth or Tomatotone. OR, just get a jug of Neptune's Harvest-killer results and sticky terpene bombs.
 

Warfox

Well-Known Member
For calcium/magnesium I just pulverize dolomite lime and water it in: it’s stupid cheap and there’s your calcium and magnesium. Works amazingly well for me.
 

CWF

Well-Known Member
Yep. Maybe a pinch of epsom salts if you specifically see Mg deficiency - but if I use enough DL at start, and watch pH, I never have these 2 issues (cal/mag). YMMV IMO
 

sirtalis

Well-Known Member
For mid-flowering, I've started working with gypsum, langbeinite, and guano.

Gypsum for Ca and S
Langbeinite for K, Mg and S
Guano for P
A tiny dash of BAS Big 6 for micros
 

Warfox

Well-Known Member
Yep. Maybe a pinch of epsom salts if you specifically see Mg deficiency - but if I use enough DL at start, and watch pH, I never have these 2 issues (cal/mag). YMMV IMO
AND if you use enough dolomite lime in the beginning, it will pretty much buffer any potential pH problems during your grow.
 
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