More nute run off questions

Im in coco and smart pots, ending week 4 in flowering and my feeding ppm is around 900-1000.

I was under watering my plants, wasnt getting any run off. Finally figured that was bad I watered them more next feeding and checked, the run off was 1400 ppms. The plants were showing clear signs of nute burn. Burnt leaf edges, major leaf tip curl, ect.

I flushed the plants and got the run off to 300ppms. Next feeding I fed at the normal 900 and got decent run off (about 10%). The run off ppms were about 750. Everything was great. Then I just fed again at 950ppm and the run off is back at 1300 (2nd feeding after flush). The plants will probably burn again.

Would anyone know if I should just add more clean water to my feeding to get 15% run off and water down my mix? Or add more water to the mix and nutes accordingly and get 15% run off? By getting more run off will that lower the run off ppm?

Lastly some of the hairs are turning orange prematurely, could this be from nute burn? The first one is orange, the second one is normal.

sounds like your overfeeding. what is your feed schedule like?

I give them 2000ml of water each and get about 10% run off. I feed twice a week cause I wait for them to completley dry out.

I was thinking I sould give them clean water for next feeding.

cut back on how much you feed, once a week is what I do, which works out to every other watering.

Your yield is fine that way?

ZerocoolSmith said:

Your yield is fine that way?

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14 quart jars filled with just the good bud, and 4 paper bags of popcorn used for butter. All from 2 plants under a 400watt hps. If you try and pump in too much nutes, your yield will suffer. Most often less is more.

budfarmer420 said:

cut back on how much you feed, once a week is what I do, which works out to every other watering.

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Is that with coco?



J

ZerocoolSmith said:

I give them 2000ml of water each and get about 10% run off. I feed twice a week cause I wait for them to completley dry out.

I was thinking I sould give them clean water for next feeding.

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I give my plants in coco nutes every feed.

By allowing coco to dry out completely you are drastically changing the rootzone pH and causing excess potassium (as coco generates K over time) to possibly become toxic.

I feed my plants at least every 2 days.

By the time I'm in full flower that could be as much as once per day.

20% runoff is almost mandatory with coco to help remove the excess K with each feeding.

In an 11L pot I water with around 3-4Litres of feed.



J

Sounds very much like you're in a K tox scenario.

Back of your ppm's to around 600 and wait for runoff ppm to be coming out less before increasing your ppm's.



J

In coco I very rarely exceed 1.5EC which is either 750ppm or 1050ppm depending upon your conversion factor used.


J

Damn thats really good info, been trying to get that answer from someone for a long time now. Thanks.

ZerocoolSmith said:

Damn thats really good info, been trying to get that answer from someone for a long time now. Thanks.

Click to expand...

No worries.




J