Fertilising - with every watering or once a week?

gasman_crothers · Jul 1, 2024

Hey,

Really sorry if this has been asked a lot before, but a quick search didn't yield answers. Do I add fertilizer every time I water once I have started my fertiliser schedule, or just once a week?

Thanks!

Phyto · Jul 1, 2024

What does the nute line your using say? I normally feed, then water only, then feed, then water. If you start seeing deficiencies then you can feed every time you water. About half of all the “deficiencies” I see are actually toxicity, with P and K the leaves look almost identical for toxicity and deficiency.

gasman_crothers · Jul 1, 2024

Phyto said:
What does the nute line your using say? I normally feed, then water only, then feed, then water. If you start seeing deficiencies then you can feed every time you water. About half of all the “deficiencies” I see are actually toxicity, with P and K the leaves look almost identical for toxicity and deficiency.

Thank you! This is exactly the information I was looking for and fortunately pretty much what I have been doing. I am currently observing some girls I accidentally gave 10x too much fertiliser. Quickly did a 2l flush, wasn't enough, they were affected by toxicity, flushed with 10l, waited a week, gave some fert, watered this morning and here we are. They seem to have stabilized but I still can't tell if they are deficient or toxic. New leaves are coming through a healthy looking light green.

I was going do a round of Boom Boom Foliar tomorrow. Should I also give them to the affected ones do you think? C. week 5 veg

Stokes · Jul 1, 2024

gasman_crothers said:
Thank you! This is exactly the information I was looking for and fortunately pretty much what I have been doing. I am currently observing some girls I accidentally gave 10x too much fertiliser. Quickly did a 2l flush, wasn't enough, they were affected by toxicity, flushed with 10l, waited a week, gave some fert, watered this morning and here we are. They seem to have stabilized but I still can't tell if they are deficient or toxic. New leaves are coming through a healthy looking light green.

I was going do a round of Boom Boom Foliar tomorrow. Should I also give them to the affected ones do you think? C. week 5 vegView attachment 2208357
View attachment 2208358

View attachment 2208359

View attachment 2208356

When you flush in soil id probably do atleast 3x the water that you would normally give during a regular watering. Soil runofff EC is pretty whacky, especially when you have an overfeeding issue, but it will give you an idea when youre pretty close to a good flush. Its relative to you how much you had been feeding tho

gasman_crothers · Jul 1, 2024

Stokes said:
When you flush in soil id probably do atleast 3x the water that you would normally give during a regular watering. Soil runofff EC is pretty whacky, especially when you have an overfeeding issue, but it will give you an idea when youre pretty close to a good flush. Its relative to you how much you had been feeding tho

It was literally my first time applying fertiliser on my first grow. Hence why nothing struck me as being off. I have a pretty green thumb, but the learning curve has been pretty steep. Here's some more pictures of when they were sick.

June 24th

26th June

June 27

June 28

Should I be measuring EC?

Stokes · Jul 1, 2024

gasman_crothers said:
It was literally my first time applying fertiliser on my first grow. Hence why nothing struck me as being off. I have a pretty green thumb, but the learning curve has been pretty steep. Here's some more pictures of when they were sick.

June 24th
View attachment 2208421
26th June
View attachment 2208422

June 27
View attachment 2208423

June 28
View attachment 2208420

Should I be measuring EC?

i never did when i used liquid nutes in soil. I always started at 70-80% of what the bottle said and gave more if the plants asked for it. Ive seen some measure when mixing, ive never known anyone to measure outgoing. I dont even measure runoff ec in coco unless the plant looks unhappy

gasman_crothers · Jul 1, 2024

Since the incident I decided to heed those who told me to use 50%!

Stokes · Jul 1, 2024

gasman_crothers said:
Since the incident I decided to heed those who told me to use 50%!

Just remember that the more nutes you use the more you buy, the nutrient companies sure do.

Phyto · Jul 1, 2024

gasman_crothers said:
It was literally my first time applying fertiliser on my first grow. Hence why nothing struck me as being off. I have a pretty green thumb, but the learning curve has been pretty steep. Here's some more pictures of when they were sick.

June 24th
View attachment 2208421
26th June
View attachment 2208422

June 27
View attachment 2208423

June 28
View attachment 2208420

Should I be measuring EC?

Not really necessary to measure ec in soil grows. I’ve seen more harm done chasing runoff than not.

Busybee817 · Jul 1, 2024

gasman_crothers said:
Thank you! This is exactly the information I was looking for and fortunately pretty much what I have been doing. I am currently observing some girls I accidentally gave 10x too much fertiliser. Quickly did a 2l flush, wasn't enough, they were affected by toxicity, flushed with 10l, waited a week, gave some fert, watered this morning and here we are. They seem to have stabilized but I still can't tell if they are deficient or toxic. New leaves are coming through a healthy looking light green.

I was going do a round of Boom Boom Foliar tomorrow. Should I also give them to the affected ones do you think? C. week 5 vegView attachment 2208357
View attachment 2208358

View attachment 2208359

View attachment 2208356

Looks like you're doing the right thing. Made a similar mistake and had to flush 6x the grow bag volume. It stunted the plants and a few went hermy, so keep an eye on them for nanners. Cut the nanner buds off and tossed them. The Bud harvested was good, but a crappy yield.

Fertilising - with every watering or once a week?

Fertilising - with every watering or once a week?

gasman_crothers

Phyto

gasman_crothers

Stokes

gasman_crothers

Stokes

gasman_crothers

Stokes

Phyto

Busybee817

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