Mega Crop vs Dyna-Gro comparison grow

[homebrewer]

I think that every line that says that you can do both veg and bloom with the same product, is not lying, but they are not telling the truth either.
Greennutrients also had a PK Booster.
https://greenleafnutrients.com/product/bud-explosion/?v=796834e7a283

I really enjoy your posts and your explanations.

I definitely agree when it comes to hydro. In peat/coco/dirt, a veg formula from start-to-finish absolutely crushes it. The mineral uptake seems to be different in containers, maybe because hydroponics makes said minerals more accessible? Maybe it's because ebb-n-flow hydro plants get flooded (and subsequently fed) a few times per day?

 

[vertnugs]

Did you see they tweeked things again!?

New formula was put out Aug 15th.

 

[homebrewer]

Did you see they tweeked things again!?

New formula was put out Aug 15th.

How does the new formula differ from the one I'm using? Got a link?

 

[vertnugs]

How does the new formula differ from the one I'm using? Got a link?

I saw it on the greenleaf megacrop thread in the nute section.

 

[Mikenike]

How does the new formula differ from the one I'm using? Got a link?

27% more cal
8% more mag
Smaller chunks, more even
And claims to be less dusty. I have a bag of the new stuff already and yes it is less dusty when you open the bag. I normally store in an airtight Tupperware tho so not an issue for me. I like to grind all my chunks to get an even weigh but will not feel the need to do so with the new. FWIW

 

[homebrewer]

27% more cal
8% more mag
Smaller chunks, more even
And claims to be less dusty. I have a bag of the new stuff already and yes it is less dusty when you open the bag. I normally store in an airtight Tupperware tho so not an issue for me. I like to grind all my chunks to get an even weigh but will not feel the need to do so with the new. FWIW

I started putting mine in a tupperware container too. It's still dusty but it's much better than messing with a bag.

 

[simpleleaf]

I started putting mine in a tupperware container too. It's still dusty but it's much better than messing with a bag.

I save old vitamin pill bottles (particularly larger ones). Always gotta make a label! The shape is ideal for pouring powders and measuring with a scale.

 

[lukio]

interesting to see them adding more Cal and Mg...

second time they've added more Mg? i questioned their Mg ppm' on their first formula in their original thread before it disappeared, and they said they upped it in the second formula, which im using now...

Seems most dry salt companies sell the majority of the Cal and Mg separately, to my understanding the Cal is separate to stop lockout...is that right? recently watched the canna rep explaining this on the GrowTube.

im a bit of a newb when it comes to the science, need to do more reading.

also, like @Keesje i enjoy ya posts, homebrewer.

ive found i get tip burn at 1ec...any thoughts?

 

[homebrewer]

interesting to see them adding more Cal and Mg...

second time they've added more Mg? i questioned their Mg ppm' on their first formula in their original thread before it disappeared, and they said they upped it in the second formula, which im using now...

Seems most dry salt companies sell the majority of the Cal and Mg separately, to my understanding the Cal is separate to stop lockout...is that right? recently watched the canna rep explaining this on the GrowTube.

im a bit of a newb when it comes to the science, need to do more reading.

also, like @Keesje i enjoy ya posts, homebrewer.

ive found i get tip burn at 1ec...any thoughts?

In hydro 1.0 EC is pretty safe. The N is mostly nitrate so I'm personally not worried about tip burn in my setup. If I were in containers I'd be feeding at about half that, maybe 0.6 EC with my 600w lamps?

I'm not sure why they're adding more calcium and magnesium as it looks like my bag has plenty at 5.6% and 2.3% respectively. DynaGro bloom has like 2% cal and 0.5% mag which is plenty, IMO. I've even run tests where I added an extra 50ppm of cal/mag and it made no difference whatsoever. Out of the 6 essential macro and secondary macro elements, magnesium is next to last. Calcium is like 3rd on the list but in my experience it's an element that just needs to meet the requirements of the plant. Feeding more than is required has no additional benefit.

 

[Mikenike]

[QUOTiveE="homebrewer, post: 15074702, member: 231911"]pH
Thanks for doing this as I'm using megacrop so I'm sure I will benefit as will probably a host of others , much appreciated
Once the first MegaCrop reservoir was all weighed out, mixed up, and completely dissolved, I was pleasantly surprised to see MegaCrop buffer itself to a pH of 5.77. However, after 4 days the pH has climbed to 6.70 which in my experience is to be expected with foods high in nitrate N (this exact amount of pH rise is to be expected with the General Hydroponics 3-part too). They seem to have an ever-rising pH which tends to require an adjustment every couple/few days. You can actually get away with not adjusting the pH at all and despite what some will say, it won’t result in any deficiencies or ‘lock out’, but you are likely leaving some yield on the table at the end if you're not more exact about your pH. I like a range of say 5.6 - 6.3 in hydro.

In comparison with DynaGro, I've found the pH of DG's foods to be the best that I've ever tried. More-or-less rock-solid pH stability from start to finish. One thing to note is that DG's foods are acidic (like many other brands) and their Protekt product is alkaline, one can strike a 'base-protekt balance' to balance your reservoir's pH from the get-go. So lets say for example you need 100 mls of DG's bloom in your reservoir, maybe with the pH of your tap water that can be balanced with 50 mls of protekt.? It takes a little trial and error in 1-gallon jugs but once that balanced is achieved you can pretty much throw your pH pen in the trash.

[/QUOTE]
Hey Greenleaf has been active on AFN recently with their new promo, I could post your questions regarding other nute ratio comparisons there if you’d like? I’m curious myself why’d they’d resort to such a shady tactic. I’m sure you’d word your question better than I could lol

 

[homebrewer]

Hey Greenleaf has been active on AFN recently with their new promo, I could post your questions regarding other nute ratio comparisons there if you’d like? I’m curious myself why’d they’d resort to such a shady tactic. I’m sure you’d word your question better than I could lol

I *think* they're going off of feeding charts? I just crunched the numbers for Maxicrop. They claim that 16 lbs (7257.48g) makes 1614 gallons which equals 4.5g/gal. According to maxicrop's feeding chart (https://gh.growgh.com/docs/Feedcharts/GH_Maxi-REC_03216am.pdf), 1.5tsp/gal is recommended throughout flowering. Does anyone use maxicrop to see if 1.5tsp equals 4.5g?

 

[vertnugs]

I also noticed on the Greenleaf site that they have an npk listed of 10-7-18.Wonder if this is also a change with the new formula.If you hit shop and go to megacrop it still has the 9-6-17 listed.

 

[Mikenike]

Greenleaf hasn’t responded yet but a mod on afn posted this

“I looked into the figures a bit out of curiosity, correct me if I'm wrong:

9.9kg MC equates to 9400l (your figure based on 4g/gal) @ $94.93 or $0.01 per litre / $0.038 per gallon

20l Aqua Flakes A+B equates to 10000l (@2ml/l) @ $219.95, although I can get for $152 including shipping in UK, or $0.021 per litre / $0.084 per gallon.

The figure 2ml/l for Aqua Flakes is a high average of recommended use over a grow. Doing this for Megacrop gives me 7524l using an average of 5g/gal.“

 

[homebrewer]

9.9kg MC equates to 9400l (your figure based on 4g/gal) @ $94.93 or $0.01 per litre / $0.038 per gallon

20l Aqua Flakes A+B equates to 10000l (@2ml/l) @ $219.95, although I can get for $152 including shipping in UK, or $0.021 per litre / $0.084 per gallon.

The figure 2ml/l for Aqua Flakes is a high average of recommended use over a grow. Doing this for Megacrop gives me 7524l using an average of 5g/gal.“

It's not just 20L, it's 20L of A+B so 40L total. They're saying on their site that 40L only makes 587 gallons which is a dose of 68.1 ml/gal.

And then $219.95/587gal = 37 cents

 

[Mikenike]

It's not just 20L, it's 20L of A+B so 40L total. They're saying on their site that 40L only makes 587 gallons which is a dose of 68.1 ml/gal.

And then $219.95/587gal = 37 cents

I’m unfamiliar with aqua flakes but don’t you use A and B together at 2ml each? If so then I guess you could still count it as 20l since you have to use both. Or count it as 40l but double the dose to 4ml. Again, I’m unfamiliar with it but am currently using megacrop and don’t like those shady tactics so just trying to relay from what Greenleaf has to say. If they even respond.

 

[homebrewer]

I’m unfamiliar with aqua flakes but don’t you use A and B together at 2ml each? If so then I guess you could still count it as 20l since you have to use both. Or count it as 40l but double the dose to 4ml. Again, I’m unfamiliar with it but am currently using megacrop and don’t like those shady tactics so just trying to relay from what Greenleaf has to say. If they even respond.

I guess I'm just confused by the '2mls/L' dosage. Aqua Flakes is their recirculating hydro food. Here is their feeding chart (https://www.house-garden.us/wp-content/uploads/2017/10/10-6-17_8-week-feeding-chart.jpg).

 

[Dyna-Gro'n]

Awesome!!!

 

[lukio]

I'm not sure why they're adding more calcium and magnesium as it looks like my bag has plenty at 5.6% and 2.3%

im in coco and under led and have to bump my Mg by 70ppm (0.5scale) with epsom salts, if i dont they show Mg def every time, specially the GG4 crosses.

i really want to try the rockwool cubes but getting rid of hundreds of them in the UK is a bit suspect IMO, lol.

In hydro 1.0 EC is pretty safe. The N is mostly nitrate

well, ive had quite a lot of tip burn...its weird, man! didnt get it with other nutes.

 

[topshelf_sac]

I use Dynagro in containers with Royal Gold Tupur.

In veg is use protekt, foliage pro and mag pro. For the first half of flower i use protekt, foliage pro, bloom and mag pro and week 5 and 6 i use protekt, bloom and mag pro. Then i just use bloom and magpro at half strength and "flush" the last week (my strains are all 9 or 10 week).

The ph in my tap water comes oit between 5.77 to 5.9 depending on concentration. The quality and yield is outstanding. I appreciate this thread but i see no reason to switch from dynagro.

 

[Keesje]

@Dyna-Gro'n
I guess Dyna-gro is only available in the USA and Canada?