Years ago there was an excel spreadsheet preloaded with GH flora values and you could plug in your numbers and get all the data. It was originally kind of passed around along with Lucas formula so people could see that you hit all your numbers. I was always able to find it on the net by searching Lucas formula spreadsheet but that no longer works. Anybody happen to know where I can find a copy these days? Thanks
Nute Calculator for GH 3 part
- Thread starter DaFreak
- Start date
Airwalker16
Well-Known Member
Hope these help somehow. Never had a single issue following the recirc schedule.
Just be sure you always mix CaliMagic or ANY CalMag for that matter, VERY FIRST into your water. Mix REALLY well IN BETWEEN adding EACH AND EVERY PART.
Just be sure you always mix CaliMagic or ANY CalMag for that matter, VERY FIRST into your water. Mix REALLY well IN BETWEEN adding EACH AND EVERY PART.
Phat J
Well-Known Member
General hydroponics web site has several different schedules depending on the type of system and which of there nutrient line you choose. They also have a the calculator that you mentioned. I haven't figured out how to attach a link, but just go to their site, general hydropnics.com
fragileassassin
Well-Known Member
Sounds something like the spreadsheet @Renfro made in his nutrient calculating post.
Understanding and Calculating Nutrient PPM
Understanding and Calculating Nutrient PPM PPM (Parts Per Million) can seem like a mystery but it’s actually very simple. Basically the idea is to quantify how much “stuff” is in your water. PPM is commonly measured by a grower using an electronic pen which measures the electrical conductivity...
www.rollitup.org
I believe this was the last updated version
Understanding and Calculating Nutrient PPM
How’s your harvest going?? Knee deep in pounds. Epic
www.rollitup.org
manfredo
Well-Known Member
Feedcharts
Feedcharts for every experience level. Access easy-to-follow plans that tell you exactly when and how much to feed your plants from seed to harvest for every…
generalhydroponics.com
Phat J
Well-Known Member
That's that link, thanks Manfredo.Feedcharts
Feedcharts for every experience level. Access easy-to-follow plans that tell you exactly when and how much to feed your plants from seed to harvest for every…
rkymtnman
Well-Known Member
CannaStats - Nutrient Profiles for Cannabis
This page provides a common language spoken by all fertilizer solutions and a way to mix them for growing cannabis hydroponically. Sometimes referred to as the Lucas formula, this page explains the true origin of this well known proven formula and the project that led to its discovery. Emphasis...
www.angelfire.com
Thank you rocket! That is exactly the one I was looking for. lol, you've aged yourself. Thank you
manfredo
Well-Known Member
I'm glad you posted this too...I had not seen it before and it;'s a good read, especially since I'm about to fire my 100 liter aero system back up
Phat J
Well-Known Member
I don't understand why the feed rates in this link are so high. If you look at the guide from the MJ growers handbook, in this link it's telling you to add 14M-12B-4G for veg and
then 6M-22B-0G for flower. That is in ml/gal. Those rates are much higher than the feed charts from GH website. They only recomend 6-7 ml/gal at most. Most people tell you to feed at half the rates of the manufacturer recommended. Can someone please explain why the rates are so high in the MJ handbook? I wanted to change nutrients to the GH flora series and I am finding lots of conflicting information. Now I am second guessing my choice and considering megacrop. Anyone using either I would love to get straight answers on you feed rates for the GH or thoughts and comments on megacrop would all be appreciated.
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rkymtnman
Well-Known Member
not sure where you are confused. mel frank has his preferred ratios and pH Imbalance has his preferred ratios.
the whole study found that the 8/16 ratio (Lucas) was the "best" for cannabis. NPKMg of 100/100/200/60 in elemental ppm
i could never run the 8/16 w/o burning my tips. i usually maxed at 5/10 or 4/8. keeping the 1:2 ratio is all that's important, not the final EC.
i hated MC: pH was completely unstable for me. and i don't think the NPK ratio is all that great for cannabis anyway. this was version 1 of MC. not sure what there latest concoction is like.
Airwalker16
Well-Known Member
The chart I posted earlier, recirculating inparticular, and have gone by for 5+ years. It works great and my PPMs never exceed 650- 700. Never used more than 5ml/gal of any of the 3 or CaliMagic. Ever.
Airwalker16
Well-Known Member
That's interesting cause they claim its made SPECIFICALLY for Cannabis. Glad I never spent money on it though. Almost did, but Jacks will be the next endeavor I take on if I leave the 3part GH Flora series with their CalMag. It's just works so well for me for so long.
Thanks, when I first started with GH Flora trio in 1996 we used tomato recommendations. You have some of the best nuggets of info.
rkymtnman
Well-Known Member
i don't know if they've changed the ratio since v1. luckily i won a free bag. quit using it 2 or 3 weeks later when the pH was so unstable.
i'm still waiting to find something better than maxigro and maxibloom too. GH is pretty great stuff IMO.
fragileassassin
Well-Known Member
Few things are slightly different but it was mostly more cal and mag and different consistency. Newer stuff doesnt dissolve as well.
Airwalker16
Well-Known Member
Are you using MegaCrop right now in your flower tent?
fragileassassin
Well-Known Member
Kinda, I'm only using like 2g a gallon and adding mkp. I need to get some mag phos
I got turned into Lucas back at overgrow around 99 I think and although I try things every once in a while I tend to go back to it simply because it works so well. As you say, final EC is up to the user.