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Screwed up auto grow
- Thread starter Deezy
- Start date
OzBud
Proven Grower (Check Signature)
I use nutes every day, no plain waterings, no days without watering (except when very young). Only one plain watering I did was the day before I changed from the transition feed to the early bloom feed. I water with plenty of runoff so not really worried about salt buildup despite it being recommended to alternate plain watering with feeding or at least one plain watering per week.
Some people switch to transition or bloom feed as soon as pre flowers appear on an auto, I like to keep going with veg feed for at least another week or so during the stretch so they have plenty of nitrogen to help them grow bigger. Once I see actual budlets start forming I switch over to the transition feed.
I'm at the end of week 7 now, if you look at the gh chart you have I did week 1, 2, 3, 3, 4, 5, skipped week 6 and went to week 7 as the auto wont go the full 12 weeks. might skip another week or two somewhere else as well depending on bud development/ripening. I start at 50% strength and slowly work my way up until I see a tiny bit of nute burn on my leaf tips so I know what the plants can handle and then back off 5%. I got up to 80% strength before I saw the beginning signs of nute burn and have been watering at 75% of the feed chart measurement ever since.
I used 5ml per gal of calmag right from the start until I started the week 5 early bloom mix. By then they should be out of the woods in terms of possible calmag problems in coco from the higher than recommended doses to begin with during their rapid growth (you'll notice the bottle labels are different to the feed chart suggestions for calmag) and then the standard dose should get you through to harvest with no problems although you could probably do one full dose a week if you wanted a bit of extra peace of mind.
Any other questions fire away, i'm more than happy to help.
Some people switch to transition or bloom feed as soon as pre flowers appear on an auto, I like to keep going with veg feed for at least another week or so during the stretch so they have plenty of nitrogen to help them grow bigger. Once I see actual budlets start forming I switch over to the transition feed.
I'm at the end of week 7 now, if you look at the gh chart you have I did week 1, 2, 3, 3, 4, 5, skipped week 6 and went to week 7 as the auto wont go the full 12 weeks. might skip another week or two somewhere else as well depending on bud development/ripening. I start at 50% strength and slowly work my way up until I see a tiny bit of nute burn on my leaf tips so I know what the plants can handle and then back off 5%. I got up to 80% strength before I saw the beginning signs of nute burn and have been watering at 75% of the feed chart measurement ever since.
I used 5ml per gal of calmag right from the start until I started the week 5 early bloom mix. By then they should be out of the woods in terms of possible calmag problems in coco from the higher than recommended doses to begin with during their rapid growth (you'll notice the bottle labels are different to the feed chart suggestions for calmag) and then the standard dose should get you through to harvest with no problems although you could probably do one full dose a week if you wanted a bit of extra peace of mind.
Any other questions fire away, i'm more than happy to help.
OzBud
Proven Grower (Check Signature)
ok so I see you've already thought of those possibilities which I forgot about since reading the thread yesterday.
Doesn't look quite like the pictures of a calcium deficiency but it's possible as I've never actually seen one in real life although I don't understand why that should be the case if you're giving them a good dose of it.
pH sounds good too, how are you checking it? Pen, strips, drops?
How much runoff do you have compared to how much water you put in?
How quickly did it appear?
Early in my current grow when I hadn't been watering to runoff much yet as they were still pretty small I had some sort of similar leaf problems on the biggest lower fan leaves. They appeared overnight as like green indents in the leaves which quickly turned into yellow burnt looking bits and the leaf ends dried up and would crumble if I squeezed them. I started watering with good runoff, cut the leaves off and that was the end of that. Turned out my pH was a bit low in the medium itself but not on all plants, I had been collecting the runoff water from all 4 plants and putting it in one bucket and testing the pH. I now collect the runoff water and test it all separately and have found out the pH can vary by up to about 0.5 between the different plant pots despite them all getting the same pH going in. the average pH with the combined runoff was good but the individual runoff was off in two of the pots.
Not sure if that sort of thing applies to you but that's also a possibility
Doesn't look quite like the pictures of a calcium deficiency but it's possible as I've never actually seen one in real life although I don't understand why that should be the case if you're giving them a good dose of it.
pH sounds good too, how are you checking it? Pen, strips, drops?
How much runoff do you have compared to how much water you put in?
How quickly did it appear?
Early in my current grow when I hadn't been watering to runoff much yet as they were still pretty small I had some sort of similar leaf problems on the biggest lower fan leaves. They appeared overnight as like green indents in the leaves which quickly turned into yellow burnt looking bits and the leaf ends dried up and would crumble if I squeezed them. I started watering with good runoff, cut the leaves off and that was the end of that. Turned out my pH was a bit low in the medium itself but not on all plants, I had been collecting the runoff water from all 4 plants and putting it in one bucket and testing the pH. I now collect the runoff water and test it all separately and have found out the pH can vary by up to about 0.5 between the different plant pots despite them all getting the same pH going in. the average pH with the combined runoff was good but the individual runoff was off in two of the pots.
Not sure if that sort of thing applies to you but that's also a possibility
Thats helpful! I give them a good amount of run off 20% plus... but i collect it in a bucket as you said... it comes out around the same it went in at 6. I test with pen and then with drops to make double sure. Ill have a look individually. One thing i was doing after seeing issues was when watering alternatively, i was giving calmag+nutes and calmag+ freshwater? Not sure if this was too much?
it appeared pretty much overnight which was strange.
it appeared pretty much overnight which was strange.