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They look a little crowded, Id say the yellowing and falling ones might be ones that are being shaded out and dying not from any nute def. I could be wrong but just looks very bushy.. If it were me I would do a heavy defoliation and get some air flow and sun light into the bottom, Then take a few hours and stretch and tie down everything as wide as I can.
Are you supposed to defoliate in a soiless medium? Is it ok to do so?
Yeah, has nothing to do with the medium really, Its all about getting air flow around the plant and letting light penetrate to the lower branches. If you have a leaf that is green, and sun passes through it, every leaf underneath there is only seeing a certain spectrum believe it or not the transpiration turns on and off I think this is some mechanism for the plants breathing rate changes... Im not positive on this, I do know there was something I was reading about having light penetrate a leaf and any leaves catching the remaining light that shown through, will not have its stomata opened, meaning no intake of co2 and/or photosynthesis.... I could be completely wrong but that was my vague understanding of the process... Had some high idea one time because when leaves get light on blue spectrum the stomata open up again, I believe this was because it had evolved with the sky or some shit... Either way... Has nothing to really do with the medium the plant is in, and all to with air flow, and light penetration... Reduces mold/mildew chances and will let the larfy bottom nugs get more light. Sorry for rambling.
outdoors dont, under the suns spectrum the plant can use all its natural regulatory mechanisms properly... it also looks very healthy and if you defol, alot of stored nutritiens will go down the drain
correct in a way that blue/UV light induces stomatal opening very strongly, but green counters that a bit. (green penetrates much).
the bottom inner leaves which are light deprivated will fall off regardless of your feedings... looking good, you can up the charge slightly as the plant matures...
Nice, Im sure it has a lot to do with where you live as well, some one in a drier sunny climate like arizona or something might get away with it, But for me in new england, you in michigan, and Im sure others in oregon or wa or something for example might benefit from it as well if they are ever battling RH and airflow issues... and really without hauling fans outside your looking at defol and spreading as some of your only options to get some movement in there. Theres also the fact of the co2 surround the leaves needing to be replenished, I believe its way more about airflow than light penetration, but they're all important in their own ways.... again to each their own, whatever works... keep it up... experiment and share the knowledge. Cheers.
You can prune anything that you dont think will grow significant size before you have to harvest, you want to get rid of any tiny shoots with low light, that way you can redirect all the energy going toward those shoots into your tops that will actually produce better buds.
I suggest removing lower branches unless they are as tall or almost as tall as the plant. My first pic is a plant in need of the lower right branch being removed. The other picture is how I always trim during veg. Worked for me since I began doing it.
ng space for bugs. But, these are just a hypothesis. Let us know what happens.
You might want to try a fish emulsion foliar spray and 1 tsp/gal watering. Should brighten up in two or three days. My favorite bandaid. Works wonders in a hurry.
Going to pick some up today, thanks for the advice! Also, plants look sad as shit today, you think its because of the prune they got yesterday?