seedling medium PPM

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Ganjamann2020

Active Member
Coco/perlite, compost (dairy cow), medium measuring around 725-731 PPMs seeds just transplanted from paper towel to medium, so just distilled water and no food until the PPMs drop?
 
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honestly when i start seeds in soil i dont give them any fertilizer until they are out of the seedling stage.
when i start a seed in coco i give it fertilizer 24/7 even when its a seed.
if you mix soil with coco i have no idea how you would feed that lmfao.
 
Ganjamann2020 said:
Well they said put 1:1 ratio of medium to water let it sit for a while then measure with a TDS meter, it sure gives a reading when I do it
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It's not accurate.. TDS is for salt based nutes.. Organics is not Total Disolved Soilds, they have to be broken down to become available to the plant..
 
HydoDan said:
It's not accurate.. TDS is for salt based nutes.. Organics is not Total Disolved Soilds, they have to be broken down to become available to the plant..
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So I should just test the ph of the medium? the coco and perlite are suppose to be neutral PH, and I have a small amount of compost, I want to know if I should feed on my first water, that's really my root question lol.
 
Kind of hard to follow but best advice is if they just popped you have the opportunity to sow them in some plain potting soil. Save the stuff you made for flower. It sounds too hot for a seedling.

You want to pH the water you are using to water. Ph 6.3-6.5

No sense planting those fresh cracked seeds into some hot mix, it won't go well.

Plant seed into plain potting soil. Do not give nutrients until you see the lowest leaves start to yellow, probably about 10 days after the plant breaks ground. Then water in 500ppm of veg nutrient. Easy peasy.
 
Lou66 said:
What ec do you start at?
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Modern Selections said:
Kind of hard to follow but best advice is if they just popped you have the opportunity to sow them in some plain potting soil. Save the stuff you made for flower. It sounds too hot for a seedling.

You want to pH the water you are using to water. Ph 6.3-6.5

No sense planting those fresh cracked seeds into some hot mix, it won't go well.

Plant seed into plain potting soil. Do not give nutrients until you see the lowest leaves start to yellow, probably about 10 days after the plant breaks ground. Then water in 500ppm of veg nutrient. Easy peasy.
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So the bag on the compost says between 6-8 PH and the coco/perlite is neutral, so a PH of roughly 7 is too hot?, I was told by someone else you can't measure the PPMs of organic material, so all I can do is measure the PH, but I should be able to measure the PPMs from the runoff right? This is only my 2nd grow first one was stunted and only produced a single bud lol, and yes I smoked it anyway lol.
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Measuring runoff is not a good way to determine ppm.

The pH doesn't make it too hot per say, it just makes nutrients more or less available.

In soil when it is time to feed the seedlings I start at 500 ppm of veg nutrient. This is assuming the plant is growing and in great health. Go less ppm if conditions are less than optimal.

In coco, yes feed from day one. Gently of course.
 
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