Is this nute burn?

[Felcher]

Need help guys. First grow for me: outdoors, planted in the ground. She's been in flower for 2 weeks. Only ferts I'd been using were blood and bone and sulphate of potash with the occasional hit of Seasol. Once it started to flower I gave it a hit of Seasol and Powerfeed (maybe too much?).

 

Next day I got this...

 

The photo is strongest example but all tips are showing the same signs.

 

Thoughts and any advice would be greatly appreciated.

[Riverinaboy]

You should flush with straight water mate. Half strength fertilizer. Wait a month now to recover before fertilizer again.

[Carbcon]

I thought with nute burn the tips of the leaves would be affected?

[Felcher]

Yeah... Maybe nutw burn is the wrong term. But I searched a lot of forums/photos and couldn't find anything similar.

I am definitely only flushing with water now and will be a lot more carefull in the future.

[Serrated edge]

Might be iron deficient,, google it for cannabis.

[Harry Bootlace]

check here

 

http://www.growweedeasy.com/marijuana-symptoms-pictures

[Traviss]

Ive seen rot rot from over watering do this too . How often do you water? and what type of soil ? and was the ground clay based ?

Also do you use tank water , if yes when was the last time it was cleaned out tank and gutters ?

[Gazza2001au]

Looks like its just growing in bush dirt that would have little nutrition because the surrounding trees would be adsorbing all the food, i would say u need some flowering fertilizer

[Felcher]

Thanks Edge and Harry. I think you cpuld be right about the iron deficiency. Like I said I'm only a new grower... and I never tested the ph of my tap water or soil before. I just figured we live in paradise so all would be good.

Trip to Bunnings this morning and so I've found water ph is up over 8 and soil is a low 5!

I'm thinking they had been balancing each other out somewhat until I really rocked the boat with that batch of over-fert.

Will only give ph'd water until things get back on track.

Just hope I haven't fucked up too bad at this crucial time.

[Felcher]

Ive seen rot rot from over watering do this too . How often do you water? and what type of soil ? and was the ground clay based ?

Also do you use tank water , if yes when was the last time it was cleaned out tank and gutters ?

No tank water. Read below about my naivety on ph and water. I'm in nth qld and it's been VERY hot and humid for months so I have watered fairly often. I don't think it's overwatering though as I only water if I drive my finger in and it comes out clean (have lost plants to overwatering before).

I'm on the side of a steep hill so maybe there may be water running downhill deeper that I don't know about. Anyway, thanks for your input.