Necrosis in mid flower.

[JayTrinity]

Necrosis in mid flower.
This applies to all my late streigns sativas and crosses. not so much the purps and diesels.

Its shedding all the big leaf where it cant get light. It looks kind of fucked up also.
I know this is normal, but its not necessary. I feed 100% every two days of GH 3 part liquid and still only hit 900 PPM!
My friend said the plant looks hungry, although its getting bud stacking.

I have super nitro bat guanno and a 15 gallon vortex brewer.

You guys think I should mix this up and tea it and apply?


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[Foreverfamily]

double the GH your feeding them... I've heard people doing triple the recommended amount of GH for their outdoor crop

 

[gunnaknow]

Jay, unless it's the lower leaves in particular that are turning yellow, then it's unlikely to be down to N deficiency. They can benefit from extra N while they're in the stretch phase of early flowering but after that it tends to negatively effect flowering – unless they've been heavily pollinated, in which case they can require a little extra N for protein synthesis.

You may require more bloom nutrient but I'm not familiar with using GH, so I'll leave it for others to advise.

What is your soil like? If it's fairly rich, then Cannabis will often grow without displaying any major deficiencies, until late flowering. To paraphrase the late Silverback, look at the surrounding vegetation for clues as to how fertile the soil is. If everything looks lush, dense and green, then the soil is likely to be quite fertile.

If your plants are in shade for a large part of the day then they may be light deficient. In which case, you could try cutting some of the surrounding vegetation down, unless it's primarily from trees. Failing that, kelp extract can be used to enhance the levels of photosynthesis by increasing the levels of chlorophyll; as well as delaying leaf senescence. However, the growth hormones in kelp (gibberellins, cytokinins and auxins) can slow down fruit/flower maturation in some species slightly, so you should only consider using it if you typically don't experience frosts in your area until fairly late, say late Oct. I hope that this helps.

gunna

 

[JayTrinity]

its been 37 for 3 days at night in a row. my plants are 12 foot+ and 15 foot around so yes they are blocking out the sun. two hydro store guys delivered my GH in a truck and we took a look and they said at 900PPM your light feeding, even though im dosing the aggressive flowering time.

"Your plant is feeding of its big leaf storage, they are hungry"

I guess Ill have to call GH in the morning after holiday and ask if I can go higher then aggressive.