If I had to randomly guess something, I would say having plenty of sunlight for a long day. Different plants like different things however, so I really can't say much unless you say what kind of plant you are talking about, and what it's current conditions are.
It increase plant growth.
They can stop growth, increase it or make no difference at all.
Yes by using growth hormones
The Pros of milk in plant growth is that it is a interesting question to investigate because milk is 87% water & also milk does increase bacterial growth in and around the plant soils :)
Plant growth will increase when fertilizer is added, in as much as the plant is deficient in the nutrients the fertilizer provides. Most processes in nature has a bell-shaped to its function where too much, even of a good thing, can begin to do harm.
nitrate helps increase plant growth. Nitrate helps build protein in the plant which makes plants grow. Nitrate is found in fertilisers, which farmers place on their crops to make them grow. So yes, nitrate affects plant growth but in a good way!
Plant and algae growth increases
have heat and shine bright enough to help the plant grow stronger
decreased growth
Meristematic tissue (vascular cambium) produces secondary growth. In plant stems, this serves to increase the diameter, and it forms between the primary xylem and phloem.
Well, Depending on how old you are, it could be a growth plate.
Well, simply, what helps it increase is good circulation in the root zone.