1st Time Grower. Got questions, need some advice plz

Moonsoul

Member
1st Time Grower, and it's been a learning experience for sure. Here's what I'm cultivating (sorry if I don't know all the lingo yet, so say something incorrectly)

Strain: Jack Herer Auto-Fem (sativa base I believe)
Lighting schedule: 12/12 from seed
Currently at: 42 days from germination
Medium: Miracle Grow potting soil with 25% perlite mixed in; soil pH at 6.4 with slurry test
Water: Tap @ 7.7 pH and 75' F --- runoff at 5.7-6.0 pH
Nutes: Dyna-Gro Veg and Bloom; drops water pH to 6.6-6.8
Pots: 3 gal fabric
Temps: 80'F/day - 70'F/night
Humidity: 40-50%
Room: 6x6 tent
Vent: 6in inline fan that runs constantly while lights on and 15min/hr when lights off
Lights: (1) Sunraise S-2000 LED and (1) Sunraise S-3000 LED

As shown in the attached pics, the last 11 days has been a challenge. Everything had been going fine I guess, except plants #1 and 2 grew to 24" while #3, 4, and 5 were only 14". Then the burns began. I had been feeding a 1/4 tsp of the Veg and Bloom each at every feeding (enough for some runoff) which was about every 4th day. On day 30, I began giving them the recommended 1/2 tsp per gal water. On day 33, some yellowing and burnt tips showed up. I had watered them that morning. The yellowing/burning progressed, so on day 37 I flushed with 2.5 gal of just water. Next day the yellowing/burning was still progressing enough to start trimming the dead fan leaves, and I learned that a flush was like 3x the volume of the container, so I performed a full flush with 9 gals of just water through each. I knew it was a risk, but was worried they would all die. This halted the yellowing and burning tips. 2 days later (day 40), I had entire leaves yellowing with no tip burning. Looked to my newb eyes like deficiencies. I watered and included 1/2 tsp of just the Bloom nutes per gal as to not start the burn again.

Now on day 42, and the whole-leaf yellowing is starting up again. Some of the lower leaves are almost white they are so yellow. Today is day 4 since my flush, and water moisture is at a 5 on the scale of 1-10. I don't want to burn them again. I'm quite lost and frustrated at what to do. Any insight would be appreciated since I have noone to talk to in person and ask these questions. Thanks everyone!Resized_20211007_170029.jpegResized_20211007_170047.jpegResized_20211007_170117.jpegResized_20211007_170123.jpeg
 

BudmanTX

Well-Known Member
Mg problems late in flower huh

from the looks it looks like Nute burn......MG already has Nutes in it....and then you adding more on top of that........back away from the added nutes for a while and just use water........imo

might be some other people could chim in as well
 

Moonsoul

Member
Update: Today is 4th day since last water + 1/2 tsp Bloom nute addition. Soil is damp but not wet 1 inch below surface. Attached are pics just taken under the Blue spectrum light because they showed the definition more clearly. On the yellowing leaves, there are now brown "specks" starting from the center and moving outward, and some older leaves are dying in the center.

And TY for advice Budman. I've been struggling with Nutes whole grow. Gotta learn somehow, I suppose ha :)


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BudmanTX

Well-Known Member
my rule with working with MG is to go 50/50 mix with manure then use reg fertilizer...remember right out of the bag it's already hot....it's nice to let it cook(just let it set) a little before using it......


now and day's ........i make my own soils now......
 
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