GulfIslandgrower
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Since you describe it as "mainly on the top part of the plant", if you have ruled out light burn, I would say it is likely an immobile nutrient. The purple veins of the leaves leads me to suspect phosphorus deficiency though. Your input PH and ppm seem to be on point, have you done a soil slurry test to know the PH of the soil? I know this isn't a complete answer but hopefully it gets you headed in the right direction.
Hey chad, My run off is pretty consistent around 6.2-6.4Since you describe it as "mainly on the top part of the plant", if you have ruled out light burn, I would say it is likely an immobile nutrient. The purple veins of the leaves leads me to suspect phosphorus deficiency though. Your input PH and ppm seem to be on point, have you done a soil slurry test to know the PH of the soil? I know this isn't a complete answer but hopefully it gets you headed in the right direction.
-I use basic pro mix soil in 2gal pots.What media are they in?
How big are the pots?
What is your watering schedule?
Temp and humidity?
Source water ppm?
Inorganic or organic nutrients?
100% transpiration issue. My guess would be salinity without more info
This is the right way to solve the issue.What media are they in?
How big are the pots?
What is your watering schedule?
Temp and humidity?
Source water ppm?
Inorganic or organic nutrients?
100% transpiration issue. My guess would be salinity without more info
I’m back to using rainwater and my last run off varied between my 4 tables, from 1200-1320 ppm. My pots are drying out every other day. Sometimes every third day.That sounds decent to me except the well water ppm is pretty high and not knowing the makeup. Can you test the runoff ppm next time.
Salinity will affect the plants ability to uptake water.
The next thing would be the humidity i think your to high for those temps. This will also reduce the transpiration rate. 50% will likely make an improvement.
Good airflow also important.
How fast are the pots drying?
It looks alot like overwatering but I think your humidity is playing a role in that. Are you able to lower it?
A slurry test for soil PH will likely be a bit different than your run-off PH. Your current range is the target range for soil. Do consider the other things I mentioned, those are the problems if the PH has already been addressed.Hey chad, My run off is pretty consistent around 6.2-6.4
Yeah that would help. Plants that size in 2 gal pots should be drinking a bit more but I would run a good amount of runoff each water from here on out just to be safe and then let them dry well. Maybe even let em dry to wilt once to get a feel for how light they can be before watering.I’m back to using rainwater and my last run off varied between my 4 tables, from 1200-1320 ppm. My pots are drying out every other day. Sometimes every third day.
I could run my exhaust fan more frequently to try and keep the humidity down.
Yeah that would help. Plants that size in 2 gal pots should be drinking a bit more but I would run a good amount of runoff each water from here on out just to be safe and then let them dry well. Maybe even let em dry to wilt once to get a feel for how light they can be before watering.
Absolutely could. Did you flush with 3x the volume? Maybe try some recharge with a flush. 1300ppm is not bad. I think its more of a ratio and ph thing. But before adding anything to raise it. The next few feeds give em a good amount of runoff. And see if the pH start trending upwards.Hey so I let them really dry out and did a solid flush and got 1340ppm 5.7 ph for the first bit of water to come out and 1300ppm 5.8 ph for the last bit of runoff.
Clearly my ph is very low, could that be contributing to other deficiencies?
Absolutely could. Did you flush with 3x the volume? Maybe try some recharge with a flush. 1300ppm is not bad. I think its more of a ratio and ph thing. But before adding anything to raise it. The next few feeds give em a good amount of runoff. And see if the pH start trending upwards.
What source water are you using right now and for the last few feeds? Well or rain?
Look overwatered and over fertilized. 1300 ppm is quite high in my opinion and the buildup in the medium tends to lower ph.
My pots dry out every 2-3 days. Should I be watering with less water and try to get it down to every 2 days?
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