Is the nute burn or something else?

Hi,

I have 7 plants in a 1 m square tent under a 600w HID.

Pictures: http://imgur.com/a/7JmbN

Medium: Coco
PH: 6
I have been flowering for 42 days.

I have read that it is natural for leaves to brown up towards the end but this seems pretty bad. I have checked various diagrams of plant problems but can't seem to match it to anything. Some plants look worse than others and they have all been treated exactly the same.

I have a parrot flower power in one of them and it says the nutes are fine (if that is to believed).

Thanks

what is the nutrients, how much do you give? they are in coco under the clay pellets? looks like bad nute burn.

I am giving 25ml of part A & B of Hygen Coco Bloom. This is the breakdown: http://imgur.com/a/NKD4q

No its just coco and a thin layer of perlite at the bottom of the pot, no clay pellets.

So should I flush with PH water then reduce the dose?

Thanks!

Those plants been threw hell or what? Seedy, throwing nanners. Has to be further along then 42 days:/

Some of them look a bit healthier. The photos are mainly of the problem plants.

I had someone else looking after them for 8 days a week ago. I am pretty sure he did the watering right but its possible he put a bit extra in, he watered 3 times.

Takes about 6wks for seeds to grow, so the stress has been going for awhile, or you nute burned AND pollinated your grow somehow

Thanks for your help. I didn't see the seeds, I'll have a closer look next time I pull them out.

Does this mean I have been using too much nutrient all along?

No tellin..whats your ph, temps?

PH is 6. Temp range is about 18 C - 24 C. I have been trying to keep the humidity in the tent around 50% but it does sometimes go up to about 60% when the lights are off.

Gonna get a lot of seeds from that harvest. And the high wont be as potent as it could have been.

singa4 said:

PH is 6. Temp range is about 18 C - 24 C. I have been trying to keep the humidity in the tent around 50% but it does sometimes go up to about 60% when the lights are off.

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singa4 said:

Hi,

I have 7 plants in a 1 m square tent under a 600w HID.

Pictures: http://imgur.com/a/7JmbN

Medium: Coco
PH: 6
I have been flowering for 42 days.

I have read that it is natural for leaves to brown up towards the end but this seems pretty bad. I have checked various diagrams of plant problems but can't seem to match it to anything. Some plants look worse than others and they have all been treated exactly the same.

I have a parrot flower power in one of them and it says the nutes are fine (if that is to believed).

Thanks

Click to expand...

Ec/ppm dropping like normal? Too much p/k? Look into it, maybe post some FP screen shots and your exact feed ratio

I don't have a ec meter (I think I'll be buying one soon) but the parrot flower power shows the nutrient level going up slightly, it says I am at 2.5 dS/m. Should I flush and reduce the nutrient level?

singa4 said:

I don't have a ec meter (I think I'll be buying one soon) but the parrot flower power shows the nutrient level going up slightly, it says I am at 2.5 dS/m. Should I flush and reduce the nutrient level?

Click to expand...

dS/m = ec
If its 2.5 and keeps rising then you probably have too much by the looks of the plant. However, too much of what? What do you feed?

I am giving 25ml per 10L of part A & B of Hygen Coco Bloom. This is the breakdown: http://imgur.com/a/NKD4q

Edit: Ill do the FP screenshots now

This is the FP screenshots: http://imgur.com/a/jLcWf I am not sure how accurate the flower power is.

singa4 said:

I am giving 25ml per 10L of part A & B of Hygen Coco Bloom. This is the breakdown: http://imgur.com/a/NKD4q

Edit: Ill do the FP screenshots now

Click to expand...

The thing about cannabis, or all living things actually is they all thrive differently. Some can take more stress, some need more food, some dont get hungry as much, some dont like too much phosphorus, some like alot of calcium ect... So the chart on the bottle is just a rough guide.

When you feed, you take note of that parrot device and what its telling you. If the ec is lower every next watering, then that means the plant is eating from the medium, you want to atleast keep it that way or balance it out rather then overfeeding. If you lower the ec, but use the same nutrient ratios and your problem goes away, but (for example) your plant now lacks nitrogen then that means you increase the "part A" (or whatever bottle has more N) untill the plant is happy.

You need to keep an eye on the plant with two part bottles because sometimes increasing both will do more harm then good especially with sensitive phenotypes and high p/k ratios.

Here, this might come in handy! Read through the primary nutrients "excess" and you'll find your problem. You can fix your feed now, but its too late to bring them back to health, you can only prevent further damage.

Thanks for the explanation. I'll keep a closer eye on what the flower power is saying regarding the nutrients.

For previous grows & the veg stage I used a one part solution. Would I be better off going back to that?

I'll get a EC meter and read up on it more. Hopefully they will recover and I'll do better next time.

Thanks for your help.

singa4 said:

Thanks for the explanation. I'll keep a closer eye on what the flower power is saying regarding the nutrients.

For previous grows & the veg stage I used a one part solution. Would I be better off going back to that?

I'll get a EC meter and read up on it more. Hopefully they will recover and I'll do better next time.

Thanks for your help.

Click to expand...

Well im not familiar with your nutes, so im not sure? I will say, if you add up your ratios and they look something like "3-5-7" then most likely you will eventually run into nutrient problems if you use it every/most waterings doesn't matter if flowering or vegging, unless you've got a bloom hog pheno which i've never seen. When i use bottles, i like to start at 3-1-2 and increase whatever necessary however sometimes you only need to give it a jump because P is actually stored in large amounts within the plant.

On the bottle it says NPK ratio 1:1:2, is that the ratio you are talking about?

singa4 said:

On the bottle it says NPK ratio 1:1:2, is that the ratio you are talking about?

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Yea but dont forget to add both bottles at whatever ratio you used them.

Example.
Part A = 3-1-2 > 2 tsp/g
Part B = 0-3-1 > 1 tsp/g
= npk 6-6-5 per gallon

Sorry i had to use gallons, im a bit fucked up currently and dont want to mess with litres lol