I’m wondering how my ph is getting so low on some of my plants i thought it could have been from over feeding and nutrient lockout. I have 1 plant that has a ph of 5.0 and is in week 4 and has only had 1 feeding of nutes so far. So how is the ph drop to 5 when i put it in at 6.3 yesterday. Is it the ph up and down soloutuon disapating and leaving the ph left of the water plus nutes? If that’s the case should i maybe you a smaller amount of water. Is it fine? That plant shows not one sign of stress. Then i have another 2 plants in late flower on week 10 with a ph of 4.9 and the lower leaves are more yellow green as you would expect with ph issues. Any insight is welcome.
Growing in coco perlite watering with ro
When you say you are growing in coco are you talking pre sifted and buffered coco or some plain old rehydrated block coco? Was your coco buffered? If not your your pH will be all over the place. As far as yellow leaves at week 10 that is normal as you stop feeding and she starts eating herself to feed her flowers. At week 10 of flower she should be very close to harvest if not already past peak period. Pictures please.
All of this right here, and TBH most new hybrid strains are done at week nine, some even at 8, if you push them too far after that very good possibility of hermaphroditing.
@mayakid, makes a valid point about the buffering, but its something you should look into due to the fluctuations in your pH. Best to test your source water, and your runoff water to get a better idea whats happening.
That would be just great luck @HawkMan . Ph is incredibly important. When you go to the doctor that the very first test they do on you.
The human body maintains a very narrow pH range, typically between 7.35 and 7.45. Any deviation from this range, either towards acidity (acidosis) or alkalinity (alkalosis), can have serious health consequences.
A slight drop in pH (towards acidosis) can lead to seizures, heart arrhythmia, and even coma. A slight increase (towards alkalosis) can also cause issues.
With understanding the plants, comes better understanding of the human body as well. It is a beautiful similarity.
Most plants thrive within a pH range of approximately 6.0 to 7.0. While this is the ideal range for nutrient availability, many plants can tolerate and even thrive outside this range. For example, blueberries, azaleas, and rhododendrons prefer acidic soils with a pH between 4.5 and 5.5. Conversely, some plants like roses prefer neutral pH, around 6.5 to 7.0.
Cannabis, like many plants, prefers slightly acidic soil conditions. It tolerates a wide pH range (5.0-7.0) without symptoms of bronzing or interveinal chlorosis (yellowing of top leaves), but pH levels outside of the optimal range of 5.8 – 6.2 will limit growth
