Hillbillyhemp, on 15 Nov 2015 - 12:45 PM, said:
How often do I water my plants? How much nutrients should I use? Do I need anything else? Do I have enough light to support 16 large plants? My genetics are top notch guaranteed, how do I make sure I yield high, and get fat dense nugs? What might I yield? Any tips I could use? Pics coming in a few days.
Those are alot of beginner questions for someone who has had experience helping other growers already. Half of your questions don't have answers because there are too many variables for each persons' space and techniques.
The long version - There is literally no way to determine yield based off of genetics because it all comes down to the experience of the grower. And as it is your first grow, I would not get my hopes up of either a large harvest or high quality flower. Just being real with you and there are a few reasons for this.
First, many of your questions rely on your ability to understand the visual signs of problems within your grow. For instance, you can water once a day, once every other day, once a week, etc. it does not matter. What matters is does your plant look like it is drooping or are the leaves starting to curl? What does over-watering / under-watering look like? What does nutrient burn look like and what's the difference between nutrient lockout? is my grow medium PH neutral or not? These questions are what you should be focusing on because once you know the visual signs you can respond appropriately. For instance I water 3 times a day in clay pebbles, but I wouldn't recommend that to you because you're growing in a medium that retains more water. Same with nutrients -- you can water with any recipe you want at 1/4, 1/3, 1/2 strength, as long as it doesn't go over the average maximum PPM/EC/TDS of the veg or flower period whichever you are in and it's the correct NPK regimen.
With that said, another important point is that your light support is based off of square footage of light coverage, that is canopy space and not a per-plant number. For instance a 1000w light covers a 5x5 sq ft canopy space. So you can fit 1 extremely large plant under this light, or 4, or 6, or even 8. The more plants you want, the smaller they will have to be. But if you are trying to put 16 plants within a 10 x 12 space you will have a very cramped grow which results in decreased yield because the plants are both fighting for light as well as space and air flow. And if you are trying to fit 16 plants in that space then 15 gallon pots over overkill - I've grown 5 foot wide bushes 3-4 ft tall in a 5 gallon bucket. The worst thing you can do is try to cram as many plants into one spot as possible. Instead, at least 18 inches should be between plants to give adequate space to fill out.
TLDR; fat dense nugs and heavy yields come from ideal grow conditions for humidity / temps / light exposure / air flow / PH / PPM that differ between grow and veg, as well as their NPK requirements. Advanced training techniques like LST or supercropping can also increase yield. Overall, respond appropriately to visual changes in your plant and know what they mean. And head to the beginner's section in this forum to learn more about some of the basic plant requirements between veg and flower. Good luck,