How does an organic grower get nutrient deficiencies. please xplain thanks
there are two common circumstances....
1) pH imbalance, leading to alkaline conditions which leads to insolubility of thinks like metals used in photosynthesis rxns, and carbonates, and other
2) lacking something, like when I first started this organic journey i was have K and P def. in mid flower and getting lower yields. I bumped up the inputs and voila, problem solved
and one other...
3) too much of a good think. Excess P can actually inhibit uptake of water and other nutrients. also, as many of us hear, too much Mg displaces other ions in the soil which can, not won't always, lead to a deficiency.
just cause you're organic doesn't mean that the chemistry is always in your favor. one has to still pay attention to the plant!
As for the symptoms above, i'm on a really shit computer right now, and can't see the images in their true colors, but i'm leaning towards Ca, or P. The reason I say P is that second photo where the leaf looks dark and is curling upward... looks like classic P def. But you are near the end of flower.... Keep and eye on it and take more photos as it progresses. data is good to have!