Nearly harvest. Blotchy brown/yellow leaves

[Quentin3176]

Evening all, I'm nearing the end of my first grow & I'm hoping for a little advice if you will.

I've two nyc diesels nearing harvest both the same age yet seemingly at two different stages. Im growing in soiless mix ,under a vipaspectra 450, using dutch pro nutes, RO water & cal/mg

Plant [HASHTAG]#1[/HASHTAG] is the plant in question, day 63 today of what is said to be a 65 day plant. it had it's last feed on day 50 and I began cleansing on day 58 (monday just gone).

Now I know the leaves are supposed to turn yellow toward the end as the plant finishes up, and to start they were doing so quite uniformed (full yellow leaves no veins or blotches)
Now though the leaves seem to be veiny and blotchy in places.
Is this normal as the plant starves of everything causing all kinds of deficiencies or should I just expect fully yellow leaves?

I did have a thought though, that my cal/mg contains 2% N so I wondered if that could be causing the green veins and ever so slightly feeding her?
I'm worried I stopped feeding her too early now though and maybe I should have gone another week or two.

Any tips or advie would be appreciated guys...
Cheers

 

[Quentin3176]

@epenguin you seem a knowledgable fellow. Could you shed any light please?

 

[FullDuplex]

Looking at the age id say shes going into reserves. A lot of times nearing harvest you will see past leaf tissue damage that you may not see during growing as she empties her fans. Looking at the rest of her she is using them up and at this stage i wouldnt worry about what you are seeing. The damage is minimal and way in the past. Messing with things at this point wouldn't do much. Honestly i would just use plain water at this point.

 

[Quentin3176]

Looking at the age id say shes going into reserves. A lot of times nearing harvest you will see past leaf tissue damage that you may not see during growing as she empties her fans. Looking at the rest of her she is using them up and at this stage i wouldnt worry about what you are seeing. The damage is minimal and way in the past. Messing with things at this point wouldn't do much. Honestly i would just use plain water at this point.

Thanks mate.

 

[Waira]

--- Quentin-- She looks longer termed starved a bit, and has little in the way of reserves,.. the cleansing period magnified this further,... Indeed, some of this is normal, particularly the N defc. showing, but I also see P defc. (larger necrotic patches), plus the buds are looking underdeveloped... naught to be done about it at this stage, but next round, feed more heavily, especially at the bloom stage... consider getting a bloom booster, a high P-K product to use in conjunction with the reg. bloom nutes,.... usually it's just a few to several hit with the booster, diluted down depending on strength, and reducing/eliminating the reg. bloom during it's use,...
The N in the Ca-Mg is of no concern in your case,.. if you were having N-toxicity prob's, it'd be another matter,... green veins is typical with N defc., but they too can fade out,.. overall yellowing on lower fans is N defc...... She's close, so watch those trich's,.. you'll still have some new bracts forming, with white pistils, so don't go by that,... if most all he trichs are cloudy, some amber, little clear )on new stuff mainly), she can be taken any time,...

 

[Quentin3176]

Thanks mate that's most helpful. I have been using dutch pro & it has a bottle of explode in the box that I have used. I have only fed her once a week throughout her life though. Maybe I should have bumped that up as she grew. I have been watching the trichs a while and most now are cloudy with a few clear and very few amber..lots of white young looking buds though. Hence my concern.
My bloom nutes contain only 1.7 % P
Whereas my grow nutes is 2.1% P
I'm a novice but shouldn't my bloom be more than grow?

 

[Waira]

- damn nutrient lines and the many bottles need to ensure complete nutrition! I'm figuring mate, that the reason for that is there are other co-products with significant amounts of P in them to help boost the amount all together, when used according to the sched'...? Some of these nute lines just piss me off for their sheer impractical application limitations,.. Explode isn't a PK booster, more of a so called bud hardener,... Personally, I'd consider another nute line, I see more struggles with Dutch Pro than successes,... might be because folks aren't using the entire line up and feed sched'? At the very least, look into other products for better PK supplementing,...