Need to confirm mag deficiency

[BayLee420]

I think I have a Mag Deficiency. Just starting on the lower leaves. She is 30 days in soil under a 480w LED. Have added 1/2 strength cal/mag the last couple of water/feed.
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Give this girl some food. She's hungry. Adding a cal-mag supplement should see results in just one watering. That should stop or slow down any cal-mag issues almost immediately. Takes some time, but you would see an improvement after the 2nd cal-mag supplement watering. She maybe a cal-mag slut later as she gets into FLOWER. This girl need a meal.

 

[Duckster]

Many thanks to all who replied. With the general consensus that she's hungry I fed 2 liters today
1ml/l GH CaliMagic
2 ml/l AN Voodoo Juice
2 ml/l AN pH perfect Grow
2 ml/l AN pH perfect Micro
2 ml/l AN pH perfect Bloom
2 ml/l AN B-52

We shall see how she looks in a couple of days.

 

[namvet25]

I would skip the bloom nutes for now and just go with veg and micro.What are the recommended dosages and what is in the B52?

 

[Waira]

:tiphat: hey Duck-- let me confirm this- the plant is a month old?-- This is an auto WW? If so, at 30 days, she should be well into bloom,... that aside, this lower leaf yellowing with no spotting/necrosis, veins and all, is looking like N defc.,... (veins stay green with Mg defc.)-- could be why she's stayed on the small side too,......

Soil pH with accurate 8 is 6.6-6.8

<-- :clap: that makes me happy!! And it helps a great deal in diagnostics,... I forget what the NPK#'s are on AN stuff, but up the grow nute's for sure,... Meantime, confirm if this is an auto or photo... if it's an auto, at 30 days, and still no blooming, it's time to tweak the lighting and force blooming,....

 

[Duckster]

I would skip the bloom nutes for now and just go with veg and micro.What are the recommended dosages and what is in the B52?

Directions say for plants larger than 4 sets of leaves-
Grow (1-0-4) 4 ml/l - all weeks of grow phase
Micro (2-0-0) 4 ml/l - all weeks
Bloom (1-3-4) 4 ml/l - all weeks of bloom phase (wasn't sure when to start these to early I'm guessing)
B52 (2-1-4 with vit B1) - 2 ml/l - all weeks of grow phase and weeks 3-6 bloom phase (I'm a bit heavy on this. Been trying to stick with 50% recommended dose.

 

[kingrat]

id suggest taking a look at Tangs feeding schedule, he runs AN range and iv copied him almost completly, check out his grows, not a better role model around imho!

https://www.autoflower.org/f26/tangs-new-improved-feeding-schedule-34408.html

 

[Duckster]

:tiphat: hey Duck-- let me confirm this- the plant is a month old?-- This is an auto WW? If so, at 30 days, she should be well into bloom,... that aside, this lower leaf yellowing with no spotting/necrosis, veins and all, is looking like N defc.,... (veins stay green with Mg defc.)-- could be why she's stayed on the small side too,...... <-- :clap: that makes me happy!! And it helps a great deal in diagnostics,... I forget what the NPK#'s are on AN stuff, but up the grow nute's for sure,... Meantime, confirm if this is an auto or photo... if it's an auto, at 30 days, and still no blooming, it's time to tweak the lighting and force blooming,....

Hey Waira too much water and a cling wrap problem have had this girl stunted almost since day 1. Yes she is supposed to be an auto. There is a 13 day old Trans Siberian Auto in the pot next to her

As for the nutes, see my response to Nammy

As or the lighting, 480w dual spectrum led running 20-4 in the veg mode about 10" above the plant. Temps are about 88F at plant level lights on with cab closed. Rh is 50-65%

 

[Duckster]

id suggest taking a look at Tangs feeding schedule, he runs AN range and iv copied him almost completly, check out his grows, not a better role model around imho!

https://www.autoflower.org/f26/tangs-new-improved-feeding-schedule-34408.html

Thanks for the input King. Yes I have checked out Tang's schedule. But I wasn't sure how to tweak it since Tang uses Sensi Grow A&B as a base and I am using the Grow, Micro, & Bloom trio as a base.