Dyna-Gro vs General Hydroponics (Dumpster Grow)

J

jamesking

Member
homebrewer said:
DG is a great 'set it and forget it' nutrient. I only check my pH every other day and I only check it because I top off with plain water. GH was never that stable for me.

In regards to ppm, that will always fluctuate unless you're feeding your plants at exactly the right levels. If you're not overfeeding, your ppms should stay in check and drop at the same rate as your water levels. Actually, you will only see a 'drop' in ppms if you top off with plain water which obviously dilutes your res a little.

I use DG's grow 7-9-5 and really like it.
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I understand the PPM fluctuations a little, but maybe you can elaborate a bit. After feeding, the rez water level will go down but the ppm will stay the same. Is that good? Should I top off the water every time BEFORE feeding?

Also, I'm feeding twice a day. Rockwool. Does feeding more often give better yield?
 
homebrewer

homebrewer

Well-Known Member
jamesking said:
After feeding, the rez water level will go down but the ppm will stay the same. Is that good?
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That's good assuming you're feeding at a ppm your plants enjoy.

Should I top off the water every time BEFORE feeding?
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Depends how big your res is. Smaller reservoirs should be topped off or at least monitored daily. Bigger ones may be ok left alone. Really depends where your ppm and pH are.

Also, I'm feeding twice a day. Rockwool. Does feeding more often give better yield?
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You want to flood your rockwool so your plants stay hydrated. Flooding too much can lead to salt buildup issues in your medium OR root-rot. It's a balancing act. Two or three times daily with rockwool should be fine assuming you're not at 10% humidity and 95*.
 
1nitrous

1nitrous

Member
homebrewer said:
I remember reading that and I think it was in reference to the ammoniacal nitrogen and somewhere under 15% is desirable and since DG is below that, I think he was arguing that it was intended for hydro, not soil? Myself and another on this forum are currently testing it in soil. All of our plants look fantastic thus far. But in regards to DG's pH stability, it's rock solid. My comment was more of an explanation as to why I've had to adjust it at all (just 4 times in nearly 2 months) and that was in all likelihood due to over-feeding. In contrast, I adjust the GH pH 4 times per week.



CNS grow and bloom look 'complete enough' and like you mentioned, it has a good veg ratio. I'm not crazy about the bloom ratio as I like a 1:1 N to K ratio, or at least somewhere close. 2-2-5 doesn't look good on paper, though it could be fine in practice. Their coco bloom is 2-2-3 and that would be interesting to try. As far as price, CNS looks to be half the price of DG, but the real question is; how potent is CNS? I'm finding that DG is giving me the following ppm values (1 ml/gallon):

Grow PPM 128
Bloom PPM 88
Protekt PPM 12
MagPro PPM 115

Do the math and I think you'll find that it doesn't take much to get to a recommended 1400 ppm. For instance, I'm using a half and half split of grow and bloom for my AK47 and at normal feeding levels for flowering, I can grow 6 plants for 1/3 of a gallon of DG nutes which costs me $15 in base nutes, that's pretty cheap. So to compare the cost of products side-by-side, potency should be taken into account.



The DG pH is rock solid. If you're not trying to feed your plant more than it can handle, you can throw away your pH up and down, seriously.

Having almost one DG grow under my belt (so take that for what it's worth), here is what I am feeding my AK47s off camera in mls/gallon:

Transition (1250ppm for 2-3 weeks):
Grow 3.5
Bloom 5
ProTekt 5
MagPro 1.5

Bloom (1350 ppm for 4-5 weeks):
Grow 2.5
Bloom 7.5
ProTekt 5
MagPro 1.5

Ripen (1250ppm for 1-2 week):
Grow 0
Bloom 10.5
ProTekt 5
MagPro 0

Some of the ppms may seem low, but given my 15 gallons res size, water usage/evaporation quickly condenses the ppm in a 24 hour period.


My meter is a .7 conversion I believe, maybe someone can verify if they have one (http://www.hidhut.com/catalog/oakton-ecotestr-tds-low-p-2325.html ). Regardless of the conversion, if there is such a thing, the GH feeding schedule that my plants have done well on turns out to be around 1450ppm. So using that as a max value, I've mixed DG nutes to reach that value so I can now feed accordingly.
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I know this is an older post and dumb question but are you using a recirculating system or a drain to waste system for your nute schedule?????
 
homebrewer

homebrewer

Well-Known Member
1nitrous said:
I know this is an older post and dumb question but are you using a recirculating system or a drain to waste system for your nute schedule?????
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That nute schedule is too strong as I don't feed over 900ppm or 1.3 EC for any of my strains. But to answer your question, it's a recirculating system.
 
1nitrous

1nitrous

Member
homebrewer said:
That nute schedule is too strong as I don't feed over 900ppm or 1.3 EC for any of my strains. But to answer your question, it's a recirculating system.
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Can you post your schedule that you use for soil feeding during veg and flower??? I have been following your post pretty closely but I must have missed it if you did post it already. Because I have switched over to the dyna-gro line now and I am having some Potassium and Iron deficiencies on a grow I am doing using coco/perlite in grow bags.
 
H

hogs

Member
I am usin 80 mls per 20 liters of water of dyna-gro was at first using 40, then 50 then 60 then jumped to 80 all seems ok, as I am also using Advance products side by side and with all products in I keep both around 1350 ppms for a comparison.....in flower
 
homebrewer

homebrewer

Well-Known Member
hogs said:
I am usin 80 mls per 20 liters of water of dyna-gro was at first using 40, then 50 then 60 then jumped to 80 all seems ok, as I am also using Advance products side by side and with all products in I keep both around 1350 ppms for a comparison.....in flower
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Is that 80mls of base nutrient into 20 litres???
 
I

Illumination

New Member
homebrewer said:
You've been gone for a good while now, I don't blame you ;)
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and will not be around very much at all...but there are people here thast still matter to me so basically goin round saying high and attempting to share some wisdom here and there...no more drama though..first sign of it and I am outta here...and had made them ban me then a good friend took it upon themselves to unban me with out my asking and then they informed me ....

Come visit me at my new home more often...got some hydro dudes needing help and I do not know a thing about hydro except that you do!! lmao

Namaste'
 
reverof

reverof

Active Member
Homebrewer....
Hope you dont leave, if you do would love to know where you will call your home online if you choose one. You are a major reason why I came here.
 
hobart

hobart

Well-Known Member
Medi 1 said:
sure no worries,. sory, diodnt mean to clutter in here bud.

ya ok now i get what you mean animnal based...shrimp n crab arent animals so its not what i would have thought of for this. actualy not many of those are animals actualy.
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I know this was posted a long time ago and that I shouldn't be bringing up old shit but I just had to let dippy here know as I hope others have that, Crabs and Shrimp are both animals my4th grade teacher told me so yesterday during science....
 
unohu69

unohu69

Well-Known Member
hello HB, I have a question about DG nutes. I have protekt, grow, and neem oil (for DG products), superthrive, also foxfarm growbig. I am switching to DG after reading about your success with it. I was wondering if I can or even should mix any DG grow with protect & neem oil for a foliar spray (The neem oil instructions say to add either protekt, or dish detergent). And maybe how much would be good for say a regular 16oz spray bottle?

If they shouldnt be mixed, can i mix a foliar spray from grow, could it be sprayed on before, after, or two totally separate days?

I was gonna use up the FF before busting open the DG bottle, but I may just use it on the aloe and spider plants.....

Thanx for your advice so far, I appreciate it. You deff seem to have your shit tuned in.
 
homebrewer

homebrewer

Well-Known Member
unohu69 said:
hello HB, I have a question about DG nutes. I have protekt, grow, and neem oil (for DG products), superthrive, also foxfarm growbig. I am switching to DG after reading about your success with it. I was wondering if I can or even should mix any DG grow with protect & neem oil for a foliar spray (The neem oil instructions say to add either protekt, or dish detergent). And maybe how much would be good for say a regular 16oz spray bottle?

If they shouldnt be mixed, can i mix a foliar spray from grow, could it be sprayed on before, after, or two totally separate days?

I was gonna use up the FF before busting open the DG bottle, but I may just use it on the aloe and spider plants.....

Thanx for your advice so far, I appreciate it. You deff seem to have your shit tuned in.
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I've never seen the need to foliar feed. Use neem like you'd normally use it but save the grow and protekt for the roots ;)
 
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