are you pH-ing anything? how much lime? have you tried this method with any other plants?
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Thanks for the great info, having some numbers to use as a starting point is a huge help.
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Switched back to jacks after a short stint into dirt/dry organic amendments. Plants just weren’t looking as happy as when I was running jacks. Repotted back to coco and jacks 321 and within the day they are happier. Jacks for the win. Luckily I have 25 lbs each of A and B. 
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https://www.jacksnutrients.com/cannabis-hemp-schedules
Interview with Cari Peters:
GPN_June_Duets.pdf (720.5 KB)
PPM/EC chart for Jacks products
Jacks PPM-EC Chart.pdf (211.8 KB)
Kootmed 3-2-1 chart (one page for printing)
JACKS-3-2-1.pdf (92.5 KB)
“Reading and Analyzing Your Fertilizer Bag” by Dr. Cari Peters
https://ag.umass.edu/sites/ag.umass.edu/files/pdf-doc-ppt/handoutcpeters.pdf
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@Calyxander Brother do you think this 1 part Jack you use would work for Coco coir as a medium?It Is like Pro mix HP but It eats CalMag,so I would Just have to supplement calmag?
Buying those Canna Nutrients gets me poor
The question Is open to everyone
Thank you guys
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@Andrexl With coco you need to prepare it by washing and buffering it first to rinse and bind the sodium and potassium with calcium and magnesium. Otherwise it will suck all the cal-mag out until its CEC is equalized. Basically soak it in a strong cal-mag solution before you use it. I’m not sure if there’s ongoing increased cal-mag needs after that but it’s definitely worse if you don’t buffer well:
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Sorry,I didn’t mention I have the canna Coco pre buffered,nevertheless,something Is odd,my runoff Is Always lower than ingoing,I think this Is what the plant used,I speak of 0.1 to 0.2Ec difference in runoff,the more I let the coco get dry the lower the EC,and this Is very weird because EC should rise with water being sucked up/evaporated
I m under leds
@Dirt_Wizard
Also,I use to mix It with lot of perlite
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Ah it sounds like you need to soak your coco more thoroughly, maybe hit it with a watering of some sort of wetting agent to make sure there’s no hydrophobic areas. Do you use drippers and are you experiencing burning? You can end up with low EC in the runoff with uneven watering:
"Saturating the full volume of the media ensures that there are no regions where salts can accumulate. When regions of the media do not become saturated they will wick moisture from the regions of the pot that are saturated. This can lead to salt build up in those drier regions which can burn your plants or create nutrient lockouts.
Distribution of water is rarely a concern when hand-watering. However, with drip irrigation systems that apply water in only a few specific locations it can be possible to get run-off without saturating the media. The water will follow well worn channels through the media and end up in the saucer even while regions of the media remain dry. The run-off EC in this situation is usually low, but the EC of the water available to the plant is spiking due to the concentration of salts in the drier regions. A plant that experiences nutrient burn despite low run-off EC is indicative of a water distribution problem."
The perlite slowing the coco draining might also be fucking your EC up:
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Wow,you are really enlighting me,Brother thank you.I am doing manual waterings through all the pot,slow and carefully.I have this feeling:when I let more water through the pots the EC climbs to the EC of ingoing,But I Need to run more water till the runoff goes up.
I might Just Need more watering events or more water volume
Current EC going in Is 0.95 and out Is 0.75
6l pots
@Dirt_Wizard
I feel like we are Hijackin the original thread,Sorry to @FirstCavApache64 ,can I contact you by private message?
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I run jacks 20-20-20 . Really good stuff. I just ph a five gallon pail of water and add one teaspoon of jacks and use each watering
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Sorry, but I have zero experience with coco, however it appears that you got some
sound advice from @Dirt_Wizard
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When growing any plant material, indoors in pots or outdoors in the ground, you need to take into account what the starting ambient nutrient value is, meaning, start with a soil analysis.
I just mixed up a big batch of soil with nutrients/salts derived from blood and bone meal, alfalfa, peat moss, pine bark and Osmocote Indoor-Outdoor Plus which is a 15-9-12 with micros. It’s a slow release system and the plants are loving it. The vigor is amazing since I upcanned Xmas day. They were stunted runts then. Will have to go 12/12 very soon, maybe today.
I’ve used Peters for 40 years or so, in all kinds of NPK ratios. It’s a value oriented, complete and very pure blend of salts. I have 3 blends now and one of my faves is Amazon.com : Jack's Professional 25-5-15 High Performance Water-Soluble Fertilizer with Micronutrients for Heavy Feeding Plants in Continuous Liquid Feed Programs, 25lbs : Patio, Lawn & Garden It is a 5-1-3 NPK which is about perfect for every kind of plant/tree. It’s also value buy being such “high” strength. I used a mazzei injector off a well head to fertilize stuff via 2 miles of 1/2" black poly irrigation pipe. Perfect match for my soil profile which is zilch when it comes to N.
My favorite brands are Dyna-Gro, Peters, and Osmocote. Have tried them all during my 50+ years of gardening. For the record, I have never used “cannabis specific” foods. They are a rip, targeted towards folks who have never grown a plant before.
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This should help with that.
I found this stuff to be the cheapest around and it is a great product too.
https://www.ebay.com/itm/161289126445?_ul=BR
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I started using the Raw yucca this last grow at about 1/8 tsp per gallon and it foams up nice at that amount. For some reason the surface of my solo cups always seems to shed water even with the yucca. It’s better if I’m watering them twice a day but that’s hard for me to do.
Thank you all for the help with Jack’s. I placed an order for the Cal nit and Jack’s this week and I got some stuff to make STS so I can try my hand at reversing some branches on this next grow.
@Andrexl no worries about any hijack. It’s all great information and I like learning about Coco, hope you get everything sorted. I hate chasing PH and EC issues so I just do the organic style mostly but I’d love to see the growth rate in Coco with some of the strains I run.
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Hi sir,Yes you should give It a try,but you Will Need to read the EC of your nutrient solution and the runoff,pH Is very important and must be 5,6 to 6,2 for best element absorption.
I had 3 organic grows and 4 Coco grows.The growth rate is outstanding in Coco,try It,It also Is not as heavy as soil to move.
Thank you for the kind answer
@FirstCavApache64
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I received my Jack’s 5-12-26 and Calnit today and I was wanting to use the Calnit as a foliar spray to try and help my sicker plants get a boost of N and Calcium. Does anyone know what ratio to start with? I tried looking around with Google but there seems to be little info on the foliar rate, especially for cannabis deficiencies.
Thank for any advice you can give.
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Curious, why did you choose a food that’s so low in N? If you’re doing soil just add some blood meal to your mix. You can add ammonium sulfate to kick up the N too. Get a Schultz 30-10-10 and use 1/2 tsp. of each (Jacks and a high N food) per gallon in a good quality water source.
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The Calnit has high N and was part of the formula from Jack’s site. I’m assuming it is the missing N from the part A or 5-12-26. I’m outside feeding the animals but I’ll check the numbers on the Calnit when I get back to the house. Thanks for the help. It’s Roots Organic soil and mainly to try and keep my Solo cup and 1 gallon pots from having deficiency issues that I run into trying to feed Dr Earth in the small pots. Once they go into their final pots in the Dr Earth mix they do fine but I’m having to get them healthy from the issues they have in the small pots. It adds a few weeks to the veg cycle until I’m happy they’re ready to flip.
I’d prefer to stay all organic but it just isn’t working for me with seedlings and clones.
I typically mix Jack’s 55g at a time. First off, Jack’s 3-2-1 is exactly that; 3g Part A, 2g Part B, and 1g Epsom per gallon of water. Jack’s 3-2-1 IS NOT full strength but about 80% of full strength. You have wiggle room!
I pre-weigh the 5-12-26 (Part A) and the Epsom Salts together as they dissolve well. I pre-weigh and keep the Calcium Nitrate(part B) separately because it is a bit stubborn to dissolve although both buckets dissolve just fine in hot water. I mix up and add the calcium nitrate last and then pH correct the drum.
If anyone is interested in learning about 3-2-1, or a close variation of it, sit down for 30 minutes and watch this great video from Greengenes: https://www.youtube.com/watch?v=KUoTFGXfb60
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Okay, the Calnit is 15.5 Nitrogen with 14.5 being Nitrate Nitrogen and 1% Amoniacal Nitrogen. It also has 19% calcium.
I have been off my feet for quite awhile and they got very rootbound and calcium deficiencies we’re showing up on a bunch of them. Almost all of them are coming back now that I’ve been back in the garden for a week but a couple are really pale and have the indications of Calcium problems. It could be the cold temps and low light they were growing in at my buddies place caused a lockout. I was thinking a foliar spray of the Calnit would give the pale ones a boost in N and Calcium and would help them catch up with the rest. I just don’t know how strong to make the mix. Should I just use the mixed 321 ferts as a foliar? It was about 500 ppm including the 100ppm my well water started at.
Thanks for helping me out with this, I hate seeing pale plants in the tent and really want to turn these around if possible. One is an original Sour Bubble from BOG in 2017 or 2018 and I don’t want to lose it.
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