Is it a nutrient burn or some deficiency.

This is the magnum strain from seedsman.
It's in 9th week of flowering.
Top leafs and sugar leafs are turing brown and crispy from tip and edges.
Is it a nutrient burn or some deficiency.
Please help me to identify.

Got some damage to the edges but great looking flowers! How about some info about the grow like growing medium watering schedule (if soil), nutes, nute strength, feeding frequency (soil), light schedule, etc.
That info will definitely help get the grow back on track more quickly.

Medium is coco coir+ perlite and watering schedule is once a week.every sunday
Nutes include frutee micro/grow and bloom.
Ppm is around 700-900 also ph of water is around 5.5 to 6.

Light schedule 12 hours of on/off.

Ppm is balanced and thats the only reason im confuse for burn or deficient of mainly phosphorus.

That's a good start. I'm sure a more experienced grower will chime in soon.

Also other plants are doing great with the same nutes and water schedule. But this plant is showing effect past 2 weeks.

Looks like burn too me.. Run that plant at 600 ppm see if it helps..

Water once a week and your grow medium is coco coir. Is it because you let your coco dry out?

invisible960 said:

Also other plants are doing great with the same nutes and water schedule. But this plant is showing effect past 2 weeks.

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zhangfuchuan said:

Water once a week and your grow medium is coco coir. Is it because you let your coco dry out?

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Coco is 2 to 3 times a week correct

Dameon187 said:

Coco is 2 to 3 times a week correct

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He is using perlit.stuff that drinks like crazy

Dameon187 said:

Coco is 2 to 3 times a week correct

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I have questions on this same issue I'm growing outdoor using perlit. Cost effect of three part mix started in Topsoil. I made a mistake going into flower still like veg and added but seems to be way too much nutrient have probably put 15-20 gallons of water down it trying to stop the nutrient burn. Today is a heavy rain day 35 mm or so. I will take a picture and show you maybe you can help. I need to know if I should be cutting these leaves off or they're retaining nutrients and continuing to burn. I also could be deficient. Mind you I had one plant that was the fish and that looks better after I put notes to it on Monday. I should have held off, here's where I am though

I should have had I live on an island that is sitting on heavy clay matter. I have seen some readings of this causing the rust-looking leaves. As well as bad roots. I'm thinking I have two weeks of vegetation left or I'm at pre-flower now. If I'm at pre-flower that sucks