Does salt, tap, bottled water affect growth of a plant?
probably. salt might have a undesired effect, so i don't recommend it. tap water is more acidic than most so look at the needs of the plant. bottled water is probably ok because we of course drink it so it shouldn't be much of a problem
How does well water affect plant growth and how does purified water affect plant growth?
Different waters have different minerals and nutrients. The well water most likely has more of the minerals and nutrients than the purified water. But either type of water is just fine for watering your plants.
How does the amount of water affect plant growth?
This article should help: https://www.gardeningknowhow.com/special/children/how-does-water-affect-plant-growth.htm
The water in my area is extremely hard. It is full of calcium and other minerals that drive the pH to 7. 5+. Is there a way to counteract this without having to add acid to the water every time? This is for outdoor plants and trees.
One of the best ways to combat this issue is by using rainwater collected from a rain barrel or other large container. If this is not an option for you, then try using distilled water or allow your water to sit for a day or two before using it on your plants.
When using drip line irrigation, how long do I have to run my tapwater?
It really depends on the system you have. I would recommend that you contact the manufacturer about this. They should have information available about how long you should run it for optimal watering.
We have a veggie garden in a long raised garden with a drip line. We are very unsure when to have the hose turn on and for how long. We live in Florida, and I thought we would water everyday. It's hard to measure how much is being dripped out of the hose. The plants just seem to be staying small, or maybe it's just early in the season. Any help would be great, as I don't want to kill all this hard work from over or under watering.
Rather than watering everyday, try watering 1-2 times a week for long periods of time. The rule of thumb is 2" of water per week. Since you are on a drip system, I would recommend taking one of the lines out of the ground and measuring how long it takes to fill a small cup or jar to 2". That will determine how long to run the drip system for proper watering.
The reaction to the amount of water to plants.
These articles will help wtih watering amounts and their effects on plants: https://www.gardeningknowhow.com/plant-problems/environmental/signs-of-plants-affected-by-too-much-water.htm
https://www.gardeningknowhow.com/plant-problems/environmental/under-watering.htm
https://www.gardeningknowhow.com/houseplants/hpgen/how-to-water-a-plant.htm
how much water do plants need well itjust depends onyou climate and your soil. not veary much do youneed to water your plants they will drowned if you water them more then you need to.somtimes you just have to water themlike once a week or even once a month.