Hi all! First grow here. Week 4 of flower tomorrow May 21. Strawberry cough from Dutch Passion. Have some serious yellowing going on right after I fed her last night. Had some of the same a week or so ago but seemed to slow after I upped the flora nova. This time it seriously yellowed over night not sure why. Didn’t check the ppm this time and don’t have a PH stick but and going to to get one asap. A bit of nutrient burn on tips so I feel like it’s getting enough nutes. It looks like nitrogen deficiency to me but I’m a noob so idk and that’s why I’m here. Any feedback would be much appreciated! Thank you
How often are you watering. With your soil is it your own or store bought?
BTW, @doodaddy, I just noticed, you’re less than 24 hours old—
Welcome to Percy’s man, I hope the community can help you sort out your current issue.
TTYL.
I'm going to put my money on an iron deficiency after some investigation.
It's very possible that the soil is too wet and the feed is composed of mainly bloom and more PK with the koolbloom. So if it a PK lock-out, it will affect everything and will lock-out all kinds of stuff. Mag, Cal are usually the starters. I had an excess PK that caused a Cal lock-out, that then caused a Boron lock-out. So in other words it's upside down and locked out. Plus I suspect that it's too wet. Remember a Teaspoon is 3ml, and the GH chart calls for 2.5ml max and that's at full strength. I would cut that back till recovery.
I would look at the PH intake and make sure it's correct, and correct the soils PH if necessary. Then low EC input and no run off. give it a week and see where it's at. I just fed Fish fert and just mixed it up, and not thinking I started feeding it to the plant when I realized I hadn't checked the PH. When I did the PH was at 3.94. So that will fuck up a plant for sure. So that's the importance of checking PH. That's my newbie opinion, good luck.
@woodi2 last comment summed up some of what was going thru my head as I was firing all those questions at @doodaddy.
So, I’m still learning myself— so, me not being sure of the exact deficiency, and therefore not in a position to recommend corrective action with a high degree of confidence, I was focusing on root cause analysis (fixing any problem, ya need to understand what caused it). The three red flags that got my attention was—
1). Unknown pH.
2). Two primary nutz being used are bloom nutz, floranova bloom 4-8-7, & kool bloom 0-10-10 (so N could be an issue, espeacially if item #3 is an issue- flushing out what little nitrogen with over watering).
3). I didn't think it is good practice to water soil until you get 10%-15% run-off
-pH, if this is the primary root cause, everything being recommended for nute supplementation etc. is all for nowt.
-Some of the other comments others made toward overwatering. Do you mean the weekly watering schedule is too much, or watering until 10%-15% run off is achieved ?? My run-off question pertaining to soil has not specifically been answered.
-Even in this comment and my earlier one, this newb was fixated on N (although it is my understanding that N is still important in flower but more so in veg), but TBF, I don’t know what micro nutz are in floranova grow (which I assumed was being used, for good reason, which could support the other theory’s (Mg &/or Fe), especially since Fe is not considered a common deficiency for indoor soil, from my research Fe deficiency is more prone to outdoor or hydro. Mg deficiency is common to all indoor growing methods, which could he exasperated by overwatering.
Remember a Teaspoon is 3ml
Just had to correct this because it could cause someone to mix bad nutes…. A teaspoon is just under 5ml (4.93) so always use 5ml as a conversation factor for mixing your res.
I'm no expert on this matter. But that said. If your PH in the soil is off then the whole plant will be unable to absorb what nutrients it requires at the time. Also root zone microbes can play a role in PH drift when checking run off PH water. If the plant has to much salts in the soil then osmosis which is the ability for the plant to uptake water not nutrients the plant will have a hard time. This will can cause lockout deficiency. So PH is key. PH your water going in till runoff for every water. If you have the ability to check soil ph then you should do this also. Drop down to your local home Depot and get a PH soil reader. Should look like a big sliver stick with a box on the end of it. Place that in your soil and see what it reads. Remember not to leave it in there because it will rust and give off bad readings clean after each use. Anyhow in short PH fisrt. Boron is the driving wheel for calcium and magnesium (side note)
Happy growing
Considering your time frame and when the issue started I am wondering if this issue started with your bloom input, it's common to see calmag issues when switching to bloom nutes also, the spike in PK can cause issues sometimes. Just something to consider
@doodaddy, I’ve been off grid the last few days, thought I’d ask how the girls are looking since the distilled watering ?
Our forum is free to join. We are an international cannabis forum that helps people all over the world grow their own personal supply of cannabis. Through our site you will find cannabis breeding forums, cannabis deficiency forums, indoor cannabis growing forums, and much more.
We are a home growers cannabis forum, and we only allow people who grow cannabis for personal use to be members. Our mission is to help you grow your own cannabis. We do not buy/sell/trade cannabis, or equipment for growing cannabis. Our site is strictly a cannabis smokers forum, cannabis growers forum and forum for medical cannabis users.
Use our guides on how to grow cannabis, cannabis grow diaries, and growers forum to find all the info you need to learn how to grow your own cannabis.
Any member who is suspected of growing cannabis for commercial gains will be banned immediately.
Please read our forum rules, and enjoy the site.
Find us on all social networks! Just search for Percys Grow Room