for a soil grow, do i need a PPM meter?
- Thread starter glann
- Start date
it measure the electoconductivity in your water ( you prolly thinking whats that) in simple terms for a grower when you are making a feed for your plants (water + nutrients) it measure how much nutrients you have put in the water (measure the plain water with your ppm, then put your nutrients in the water and measure the ppm it will rise) if you follow a nutrient guide it will tell you what ppm you should be feeding your plant at different stages of your grow..... hope that helps
Strainmaster
Member
I read ppm and like lemonz said it varies depending on stage. Here is a good chart link you can follow. I have used it recently and have found no problems. Hope this helps. cheers
https://www.rollitup.org/hydroponics-aeroponics/200589-reliable-ppm-chart-marijuana.html
https://www.rollitup.org/hydroponics-aeroponics/200589-reliable-ppm-chart-marijuana.html
Illumination
New Member
not needed but helps to know what strength you are actually giving them and really helps you to learn how to feed em without burning
Namaste'
Namaste'
Hudsonvalley82
Well-Known Member
That link seems to be for hydroponics
For soil, I find that ALWAYS keeping the runoff PPM (capture the run off from watering) under 900 is a good idea, I hit 1400 and my plants were burnt to a god awful crisp, after copious amounts of flushing, I got them under 600 and most to 300. I would say get a PPM meter (nothing too fancy), nute every other watering, and always test the runoff every watering. Just toss a gallon or so in the pot, lift it up, left it seep out for a while (until it starts to slow its flow), then capture the water seeping out in a container and test that for both pH and PPM. That is more of an indicator of how your soil is doing than simply measuring the PPM of the water you are putting in.
Plants absorb nutrients and water at different rates, so you can end up leaving a lot of excess nutes and salts in the soil even though the plant has absorbed/transpired all of the water you added, testing the run off is a better way of telling how the nutrient and salt levels look
For soil, I find that ALWAYS keeping the runoff PPM (capture the run off from watering) under 900 is a good idea, I hit 1400 and my plants were burnt to a god awful crisp, after copious amounts of flushing, I got them under 600 and most to 300. I would say get a PPM meter (nothing too fancy), nute every other watering, and always test the runoff every watering. Just toss a gallon or so in the pot, lift it up, left it seep out for a while (until it starts to slow its flow), then capture the water seeping out in a container and test that for both pH and PPM. That is more of an indicator of how your soil is doing than simply measuring the PPM of the water you are putting in.
Plants absorb nutrients and water at different rates, so you can end up leaving a lot of excess nutes and salts in the soil even though the plant has absorbed/transpired all of the water you added, testing the run off is a better way of telling how the nutrient and salt levels look
tomatogrowop
Active Member
I'd say hell ya ppm meter is necessary if you don't want to burn the shit out of your plants