What is good for plants?
Plants need a number of things to survive. Most notably sunlight & water, along with minerals and elements they absorb from their substrate. There are exceptions to this known as extremophiles that don't use photosynthesis. They are however the exception to the norm, at least on this planet.
It is good for millet and is not good for other plants. It is a weird subject. Millet grows faster when coca cola is added. No, I do not think that it helps plants other than millet. Water is best for plants. there both wrong i think coke is good for plants-- saying that i like it myself im addicted!!