Leaves yellowing around outside. Middle still green...Whats the problem?

Hey

Have been growing these mothers for about 4 weeks now from seed. Started in Fox Farms Ocean Forest only watered as it is hot soil. Started to see lighter leaves so started giving 5ml of micro grow and bloom from Blue Planet Nutrients. Plants look pretty good but still seeing yellow around edges and can't seem to figure out what is lacking; thought the BPN would give them nutrients and macronutrients they may be lacking. Please help. Here are some pics:

Nitrogen, phosporous, magnesium? I've been given 5ml of micro, 5 ml of bloom and 5ml of grow...would think this would have fixed it and I'm doing feed,water,feed as I don't want to burn them. Should I add calmag? What are they lacking? What am I doing wrong?

To the untrained eye this appears to be a deficiency. This is actually Nitrogen overdose possibly causing nutrient lockout. You've added more Nitrogen and nutrients have made it worse.

Stop with the nutrients and flush.

^ how in the world did you get to that conclusion? That looks nothing like any nitrogen overdose I've ever seen. But the flush and start over was a good bit to start. Grab 2-3x your pot size in water and flush it. Your plant looks young, and foxfarm is more than enough for a while. Grab some epsom salt, and mix it with RO water and ph it to 6.5 and just add water for a while. My plants have grown for 2 months in FFOF fine, before floeer, at which points you'll need to add nutes.

But yes it's a lockout stop adding nutrients. Only use them for inert mediums.

IMO- It looks like a Potassium deficiency
Make sure everything is in Range pH, temp, soil moisture (over watering) if your soil gets cold you can start locking out diff. nutrients.



Good Luck on Your Grow.

I've been running BPN for a couple of years and have not had any problems like this. However, I grow hydro. You may have multiple deficiencies. I know BPN has all the macro and micro nutrients you need so my guess is something is causing a lockout.

My suggestion would be to first check the pH of your soil. You want it as close to 6.5 as possible. This is the ideal range for nutrients to be absorbed by the plants. Also, are you checking your pH of your nutrient solution before watering? What has it been? If not, you really ought to get you a meter and start doing that.

Now if you have been doing that... what kind of water are you mixing the nutrients in? If its not RO or distilled you may want to switch to that. If you have lots of calcium in your tap water, like I have, it can bind with some elements in the nutrients and form new compounds that plants are not able to absorb. Which is something else to pay attention to, the way you mix your nutrients. Be sure to add the nutrients to water, never let the grow micro bloom mix together unless they are already in your gallon (or whatever size watering can) of water. if they combine in concentrated form some elements can form insoluble compounds and cause lockout. If all your pH and water is good, then I'd probably just flush with RO or distilled water for a few days and then reintroduce the nutes.

Other than that man, you can join the BPN Army here on roll it up. Its a group on here made by some other BPN users, they might be able to help, but I dont think your issue is BPN specific.

And then there is this guy, Skiya, seem super knowledgable. He just started using BPN, he may offer some good suggestions. Go to his journal see his garden. Super lush and green. Message him and ask him to come see if he has any suggestions. Seems like a real nice guy who likes to share his knowledge.

https://www.rollitup.org/grow-journals/731315-blue-planet-nutrients-journal.html

Best of luck to you buddy, you know you got lots of support here at ROI so keep reaching out. You'll get this issue resolved.

Update: I checked pH...Tap water is 7.1, runoff is 6.0. PPM of tap water, which surprised me, is 0. I know pH is a little high, but other than that how's this setup sound/look? Gave a bunch of just water today and let a lot runoff. Should i be feeding with nutes or letting Fox farms do its thing? Started these from seed on November 1st its now December 8th...

Hit em with cal mag/water, no nutes, and you should be good.

topfuel29 said:

IMO- It looks like a Potassium deficiency
Make sure everything is in Range pH, temp, soil moisture (over watering) if your soil gets cold you can start locking out diff. nutrients.

Good Luck on Your Grow.

Click to expand...

Thank you I thought it was a deficiency. So I flushed as advised by others than gave them 10ml mico 10ml grow and 10ml bloom (790ppm total) which should give them the K they need, but they seem to look worse now...

Also if my tap waters ppm is 0 does the micro bloom or grow supply them with any calcium? looked up calcium deficiency and doesnt look like that but maybe locking out nutrients bc not enough???

But is your tap water really at 0 ppm? I've never heard of anyone having tap water that clean. Have you tried recalibrating your meter? Usually tap water has calcium in it which can bind with some of the elements in the nutes causing lock out.

My gut is telling me its a pH issue. I'd try recalibrating that meter as well. Do you have a prong meter to check the pH of the soil?


What is looking worse? The leaves that have been there or the new growth? Try to post some new pictures if you can.

TheGoodGrower said:

But is your tap water really at 0 ppm? I've never heard of anyone having tap water that clean. Have you tried recalibrating your meter? Usually tap water has calcium in it which can bind with some of the elements in the nutes causing lock out.

My gut is telling me its a pH issue. I'd try recalibrating that meter as well. Do you have a prong meter to check the pH of the soil?


What is looking worse? The leaves that have been there or the new growth? Try to post some new pictures if you can.

Click to expand...

Updated pictures, and notice in one the difference in howlight the leaves are compared to the other. These leaves are light lime/yellowish. I finally got calmag and added that to the water, but that was just yesterday. I didnt add nutes bc I'm not sure they are helping, but with the yellowing im thinking they need nutes. should i give them nutes and calmag? or still straight water with calmag?