Mega Crop vs Dyna-Gro comparison grow

[homebrewer]

Yes it is good to be able to reduce nitrogen in flowering and increase potassium and phosphorous. Megacrop, that uses calcium nitrate correct? So dropping cal nitrate may leave you hanging for calcium.

I have found my 3 part GH flora series is still my go to, with stuff like calimagic, armor si, MKP, potassium sulfate.

Someday I may try to replicate the GH products using dry salts and see if I can manage to save money but for quality I have figured out a formula with GH that actually does extremely well in both veg and flower, just adding a little MKP in late flower and reducing micro a tad is all I do.

I have found veg is very tolerant of feeds and often a good flowering feed is sometimes good for veg believe it or not.

MC is a 1-part so to tweak your NPK in flowering one would have to cut back the base and add a booster. That doesn't give one a lot of flexibility though and to be honest I don't know that one needs a lot of flexibility in flower. The ability though to sort of scale back N after a couple weeks would be nice. The Green Leaf folks do offer a 0-19-39 booster but adding that product kind of cuts into the 'cost of use' which seems to be a big selling point for a lot of people.

 

[homebrewer]

These photos were taken last week but I just didn't have the time to post an update.

Day 42 below...

So this past week I had to add a second level of support as these plants are really starting to lean. I also noticed that since they're a bit taller than normal they're wanting to lean towards a neighboring light (picture below). This will likely result in additional yield so I don't know if my yield numbers here will be comparable to previous runs. It is what it is. Yield will be an important metric but I think flower formation could more a more telling sign in terms of MC's production performance in hydro. We still have about 3 weeks left so there is plenty of time left for swelling.




Leaning....



Mega Crop resin shot:





DynaGro Day 42...



DynaGro resin...

 

[homebrewer]

Day 49

These pictures were taken a few days ago on day 49. Plant health looks great, growth is fine, and branches are starting to snap. Last week I had a couple colas hanging down between the wall and the back of the tray that I had to repair. You can kind of see their indentation on the canopy.

There really isn't anything to report. MC is supplying everything the plants need for healthy growth. There are zero deficiencies and the closest thing to an 'issue' that I see is the higher dose of N than needed by the plants at this stage. Even after lowering the EC by 5-10% I'm still seeing a bit of discoloration on a leaf here and there. It's nothing I'm concerned about.



The lean....



Mega Crop resin...



DynaGro day 49 coming after brunch....

 

[homebrewer]

DynaGro Day 49

It's kinda hard to compare these two trays to one another as the MC plants got about a foot taller than the DG plants. Even then, I think the 'visual yield' of the DG tray looks greater than the MC tray. In terms of 'visual quality' they seem similar enough. I do think the MegaCrop plants are leafier though. I see more leaves growing out of the MC flowers themselves as compared to the DG flowers. Some folks call those sugar leaves? Call them what you will, they'll need to be trimmed off come harvest.

This is all speculation at this point in time. We still have 2 full weeks of growth left before they'll come down.





DynaGro Resin...

 

[Keesje]

Really appreciate that you take all this effort!

 

[swedsteven]

Look like megacrop side got hit by a basseball bat right in the middle !

 

[homebrewer]

Look like megacrop side got hit by a basseball bat right in the middle !

They're getting their lean on!

 

[Madriffer]

Is the extra foot of vertical growth due to MC?

 

[homebrewer]

Is the extra foot of vertical growth due to MC?

Nah, they started out about a foot taller. Maybe not quite a foot but they were bigger than the DG gals.

 

[Madriffer]

It's good to see your comparison grows. I've been on MC about 2 years now. I'm highly satisfied with it.

 

[homebrewer]

It's good to see your comparison grows. I've been on MC about 2 years now. I'm highly satisfied with it.

Do you add anything to it during flower?

 

[Wastei]

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

You can get it from UK vendors. They will send to countries in the EU

 

[Keesje]

I only saw it for orchids in the UK

 

[Wastei]

I only saw it for orchids in the UK

Haha yes what the site is targeted for doesnt really matter. Exactly the same line of products!

 

[Madriffer]

Do you add anything to it during flower?

I've added PK boost in the past. I've used MCs and Cannas. Didn't see enough true difference to justify the expense or the added time and labor. I'm pheno hunting a new strain so may try again once I've dialed in a new monocrop. I just change res every 2 weeks, and H2O only to top off. 5g per moms and veg, 6g per flower. 15 min flood every 2 hours veg and moms, 15 every hour for the flower room. Hand water DTW coco as needed.

 

[Madriffer]

Mother Veg room. The ones in coco are 10 days from transplant, watered once from moms res by hand. Small ones in flood table a week just getting their feet under them and ready for take off.

 

[iShatterBladderz]

DynaGro Day 49

It's kinda hard to compare these two trays to one another as the MC plants got about a foot taller than the DG plants. Even then, I think the 'visual yield' of the DG tray looks greater than the MC tray. In terms of 'visual quality' they seem similar enough. I do think the MegaCrop plants are leafier though. I see more leaves growing out of the MC flowers themselves as compared to the DG flowers. Some folks call those sugar leaves? Call them what you will, they'll need to be trimmed off come harvest.

This is all speculation at this point in time. We still have 2 full weeks of growth left before they'll come down.

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View attachment 4413552

DynaGro Resin...

View attachment 4413554

just out of curiosity, did you run FP through veg and then Bloom through flower? Is there any benefit to incorporating bloom at all in a coco grow? I’m using 70 percent buffered coco and 30 percent perlite, feeding DTW. I’ve got gallons of FP,MP,Protekt and bloom so I have it if I need it. Also I seen you mention using mag-pro in flower, my plan was only to use mag pro if I have mag deficiencies running RO water. If I’m not having problems with mag deficiencies, can adding mag pro during flower throw off the CA:MG ratio enough to cause problems?

 

[homebrewer]

just out of curiosity, did you run FP through veg and then Bloom through flower? Is there any benefit to incorporating bloom at all in a coco grow? I’m using 70 percent buffered coco and 30 percent perlite, feeding DTW. I’ve got gallons of FP,MP,Protekt and bloom so I have it if I need it. Also I seen you mention using mag-pro in flower, my plan was only to use mag pro if I have mag deficiencies running RO water. If I’m not having problems with mag deficiencies, can adding mag pro during flower throw off the CA:MG ratio enough to cause problems?

I haven't grown with that exact blend so I can't tell you exactly what to do. That being said, if you're feeding with say 100% bloom during flower at a reasonable EC and your plants are starting to yellow then it's clear that the plants need more N. Personally I'd go with Foliage pro from start to finish but maybe a 50/50 blend of FP and bloom could be an interesting experiment during flower?

Protekt (or any silica product) can be added at any time in all growing situations. Magpro is probably not needed. You could use it with foliago pro and essentially accomplish the same thing as a 50/50 FP and bloom split but you'd probably be more like 80/20 with FP and MP.

 

[iShatterBladderz]

I haven't grown with that exact blend so I can't tell you exactly what to do. That being said, if you're feeding with say 100% bloom during flower at a reasonable EC and your plants are starting to yellow then it's clear that the plants need more N. Personally I'd go with Foliage pro from start to finish but maybe a 50/50 blend of FP and bloom could be an interesting experiment during flower?

Protekt (or any silica product) can be added at any time in all growing situations. Magpro is probably not needed. You could use it with foliago pro and essentially accomplish the same thing as a 50/50 FP and bloom split but you'd probably be more like 80/20 with FP and MP.

In your experience, are there any shortcomings to a FP only grow in coco that incorporating bloom into might address? I think I even seen a video where the owner of DG said that for cannabis he recommends FP and Protekt from seed to harvest. I might have to try both with the same pheno side by side, as I know people personally who use bloom and have amazing flower but I also have seen like ten years of posts from you using DG, nobody else I know has been using it that long. I‘m growing on a fairly small scale, so I don’t mind having the extra work that comes with mixing FP and Bloom, getting the best end product in terms of quality is my main priority, yield matters but is hardly something I am worried about.

Also, I am a newcomer to coco, I have typically fed water only for the first two weeks before adding any nutes, in a coco grow, how long,if at all, should I wait before I start feeding FP and do I need to be feeding anything in the meantime other than water?

 

[Wastei]

In your experience, are there any shortcomings to a FP only grow in coco that incorporating bloom into might address? I think I even seen a video where the owner of DG said that for cannabis he recommends FP and Protekt from seed to harvest. I might have to try both with the same pheno side by side, as I know people personally who use bloom and have amazing flower but I also have seen like ten years of posts from you using DG, nobody else I know has been using it that long. I‘m growing on a fairly small scale, so I don’t mind having the extra work that comes with mixing FP and Bloom, getting the best end product in terms of quality is my main priority, yield matters but is hardly something I am worried about.

Also, I am a newcomer to coco, I have typically fed water only for the first two weeks before adding any nutes, in a coco grow, how long,if at all, should I wait before I start feeding FP and do I need to be feeding anything in the meantime other than water?

Coco is a inert media containing no nutrient. You feed from start to finish. Start at 1/3 strength and work up to half strength of recommendations. I ran Canna Coco back in the days while I was running Coco. Works really well and contains more calcium than any other nutrient line.

I would grow in Promix/peat instead. Your will always waste nutrients because of the buffer aspect of Coco. The little extra yield is not worth the extra work and hassle in my experience.