Problem at 3 week of veg coco coir

Wastei said:

Roots follow the flow of water in a hydroponic setting. In Coco Coir a big dry back will only cause a heavy EC spike and pH being out of range. I still say drybacks are for soil grows, not hydro.

If you have a problem with over watering and/or lack of oxygen growing in Coco Coir you've chosen the wrong pot size for the size of plant you're transplanting.

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If you are doing any sort of crop steering, the dry backs are very useful. Athena’s handbook is really good at explaining how to do vegetative stress vs generative stress, and when to use each one.

15 days from sprout and fed daily to run off.......

dwc420letsgo said:

If you are doing any sort of crop steering, the dry backs are very useful. Athena’s handbook is really good at explaining how to do vegetative stress vs generative stress, and when to use each one.

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Do you grow in coco?

MickFoster said:

Do you grow in coco?

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Yes

MickFoster said:

Do you grow in coco?

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I monitor my drybacks and substrate EC. Right now my plants are on week 2 of flower, so I’m aiming for bigger dryback, to develop more budsites and less stretch. On week 4-6 back to vegetative stress for bulking, then last weeks, generative stress for trichome development.

There are many ways to skin a cat, never said that your way will not work. Just said an initial dryback during transplant is helpful.

I learned the hard way too. Almost "steered" my first coco crop right into the compost bin.. Had a buddy grab a bag of "soil" from the grow shop on his way home from work one time. I didn't realize until a few weeks later what was really in the bag, and the clones I transplanted in it were looking very, very rough.. I was like wth. Checked out the bag after trying everything and finally figured out what was up. Thinking, what is this ammended soil looking "coco" BS? Then I found out it wasn't really soil at all, thanks to the internet. I started watering with feed daily, using PH down, and all the sudden they came back better than ever.. The hydro growth blew me away! It was the best mistake ever, and all the sudden coco was my jam!

dwc420letsgo said:

If you are doing any sort of crop steering, the dry backs are very useful. Athena’s handbook is really good at explaining how to do vegetative stress vs generative stress, and when to use each one.

Click to expand...

If you like to read real litterature explaining the subject further you should go down the cation exchange capacity(CEC) rabbit hole that explains how different mediums hold on to and releases minerals differently.

Athena doesn't mention anything regarding this very important aspect. Like other nutrient manufacturers they encourage drybacks and repeated flushes for profit. If you create salt buildup by doing drybacks you eventually need to flush to correct the mineral ratios being out of range.

They also explains EC stacking in the wrong sense saying that it comes from doing dry backs when it in reality comes from the cation exchange capacity and action of the medium from repeated feedings.

Wastei said:

If you like to read real litterature explaining the subject further you should go down the cation exchange capacity(CEC) rabbit hole that explains how different mediums hold on to and releases minerals differently.

Athena doesn't mention anything regarding this very important aspect. Like other nutrient manufacturers they encourage drybacks and repeated flushes for profit. If you create salt buildup by doing drybacks you eventually need to flush to correct the mineral ratios being out of range.

They also explains EC stacking in the wrong sense saying that it comes from doing dry backs when it in reality comes from the cation exchange capacity and action of the medium from repeated feedings.

Click to expand...

I never “flush”, just water to runoff. I will read up on that tho, thx for the heads up.

my last run, I followed their guides (im running masterblend 0-20-42 tho) and had my best run yet. Anyways, towards the final weeks, they have you lowering EC of the feeds. You can check the runoff ec and pH but I didnt do that, no need since the plants were looking beautiful.