While I am grateful for the watering advice you gave me (game changer), I did run into other issues down the road and am currently in a desperate situation once again.
With the right watering method, light intensity, VPD and C02 and other concerns out of the way, there is one last issue I can’t resolve – feeding and media EC monitoring.
Those last plants from the post that looked amazing after the correction in watering, eventually got badly burned in week 4 of flowering.
A total of 4 waterings starting week 1 of flower with around 500ppm (1.5L each) is all that took to almost kill them.
I guess I did not take into consideration that by increasing the amount of water from 0.5L to 1.5L per watering I am also increasing the total amount of nutrients, regardless of ppm concentration. By the end of week 4 lower leaves stated to yellow and by the time I made a runoff test I realized the media was already over 1800ppm and they were frying. I did flush them but the damage was done. Perhaps there were also netes left from veg.
My conclusion is that I need a method of knowing the EC in the media prior to every watering in order to ensure that I am not overfeeding. Does this make sense? I used to rely on set feeding schedule that I’ve adjusted (trial and error) in time but realized every batch runs differently and that can’t work without actual knowledge of the media EC.
As I started to make runoff tests for EC I stumbled upon a new issue I was not aware of. The Plagron Lightmix I use seems to have a 1000-1200ppm runoff right out of the bag. So now every time I put seedlings or repot plants into their final container, I need to take this ppm into consideration, which make the whole decision making every more difficult. To add to the problem the Lightmix is pre-fertilized with mineral nutes, while I use Plagron Alga series nutes which are organic.
Usually I don’t adjust the pH of the watering solution, however now that I know there is so much mineral nutes in the media I wonder if I should.
At some point I plan to change the Lightmix with Promix that is not fertilized and recommended for organic grow. But that will take some tests and time so now I have to deal with the Lightmix.
Long story short, how should I approach the media EC monitoring and if runoff test is the solution can you advice of the correct way to do it and what things I should consider. I also bought a Bluelab Pulse meter, so far it gives rather close readings to the runoff.
P.S I was wondering if there is any way I could contact you privately and share with you a brief document describing my process and principles. It’s a simple table that includes all parameters of the process. Hopefully you can spot some issues and give me some general advice. My final goal is to set a fixed production process that works and try to stick with it and not change it. Last couple of years of my life passed into experimentation, theories and guesswork and honestly, I am physically and financially exhausted and don’t know if I can keep going. And yet I feel I am one step away from success.
Hope all is well with you I have a question, request to see if I could recommend a product top get reviewed, I'm growing decent weed but I am fighting the Hay horse feed smell I am slowing the dry to a week to 13-14 days I have my weed is jars for 4 months before it smelled and tasted good anyway iot is something I am doing during the dry I saw these products * I know we aren't suppose to post links I hope this is a different case. I cant find anything on the forum. is it possible to request a review? ECO FARMS wedryer Herb NOW
I( some one could let me know what is the best route I would greatly appreciate it
Thanks have a good evening
Hello, good morning, I wanted to ask you something that I did not find in any forum and I do not understand well, a friend installed 2 LED panels each with a cxb3590 chip with about 90 w for two tents each 60x60, they have 4 pots each tent, I wanted Knowing what distance they should have in vegetation and in flora is the only thing I want to know, and I think that in forums I saw that it is low power, I await your response and thanks in advance, regards.
Hello! I was wondering if you could give me a hand with two questions I have regarding something you wrote about flushing:
"Flushing is definitely NOT a myth. It is done for a specific purpose. If you think that flushing means giving only water and starving your plant at the end, then that IS an old method that was used back in the 1970's to increase the plant's potency, but that has been proven to be a myth. We now know that it is better to feed your plants normally, right up to the end and that it is the curing process that cleans the smoke of all chemical tastes... it isn't done by starving the plant.
If you are referring to flushing in the correct way, to mean running a 3x the container flush of clean fresh water, to rid the soil of any built up salts or unused nutes, that IS definitely a thing, and is a good tool to use during a grow to allow for full uptake by the plant, not restricted by the debris building up in the soil.
Lastly, and most importantly, a proper 3x flush should be done 2 weeks before harvest, for it is during these last two weeks that the buds finish out, and sometimes double in weight and girth. Flushing the soil before this process starts ensures that your plants will be able to have full uptake and get as much water and nutrients as it needs for this final push."
A) If I understood correctly, you recommend flushing 2 weeks before harvest, but then keep feeding the plant after that?
B) Do you think that this should be necessary for an autoflower fed with organic nutrients? I wonder because it has a lifecycle of only 12 weeks and in my case it's planted on Biobizz Lightmix and using only the Biobizz basic nutrients (Biogrow/Biobloom/Topmax) which I understand are organic and "safer" when it comes to overfeeding/soil buildup compared to synthethic ones.
Looking at your profile, it says you are in search of a favourite strain. Perhaps at one point in time you were blessed enough to try mine? It came packaged in a tuna can in the early to mid 00's and we used to call it 'tuna can kush' came out of western Canada at the time.
I sort of vaguely remember something about electric current and plants. Okay, "vaguely" might not be a strong enough qualifier, lol. But if it was you commenting on that thread, you might be interested in this link:
hoping you got through the wind storm ok, we were getting 70mph winds and it was pretty hairy for a while.
i've spent some time here researching for my first grow and at each step along the way i seem to find advice or instruction that you have provided,
so just wanted to say thanx for taking the time to teach us nubes how to stay out of our own way.
seedlings going into the end of their 2nd week really came to life when i followed your lesson on watering.
My PH was Too Damn High!
looking forward to learning more from you as i go
Emilya ... thank you for all your work towards helping people grow.
I wanted to ask if you had a watering schedule or process for seedlings in small containers or solo cups? I'm currently weighing, and gradually scaling my water in grams from a 10g spray on the planting spot (where the seedling from a soak/paper towel sprout method had been planted root down), misting to keep damp, when it sprouts and weight goes under inital "soil from bag" weight, I squirt 10g at the stem, in about a day its back under dry weight again so I then use your "outer edge" method around the edge of the cup and using a squirt bottle I add 35g h2o. I'm getting excellent results but I'm curious where to go from here. At this point they have 2 true leaves and the 2nd set is coming in. Would you suggest continuing to raise the water weight up progessively to saturation? I worry saturating a solo could stunt the seedling and interrupt a speedy wet/dry cycle. I also read many people use a "shot glass worth" so I weighed that and its 50g. Thats about 15 grams h2o above what I'm currently watering. Perhaps thats the sweet spot for a solo seedling? Or stabilize the plants by giving what they need to be ready for water again in 3 days, establishing a 3 day wet/dry cycle? Or perhaps apply your surface spraying technique to encourage side rooting while letting the lower soil dry out more than I am now?
I'm very cautious as Ive overwatered before so I'm trying to dial in a process I can repeat reliably.
Hi Emilya, I was hoping you can give me direction in my first grow with an auto flower? My plan was to start in a 1gal pot and then transplant to the final 5gal cloth pot. I'm not sure if by waiting for the 1gal to get a good size rootball might be too late to transplant? The alternative is to go from a Dixie cup to a 1gal then to the 5gal or just skip the 1gal altogether? What are your thoughts?
Thanks in advance.