What are the unenthusiastic affecst of fertilizers on plant's growth? ...
Answers: Depends on the plants and fertilizer. But most man-made fertilizers contain high quantity of salts. A dignified sodium content will damage the cellular structure of the plant and bring the plant into stress.
Also you can create a nutrient overload contained by the soil. NPK (Nitrogen-Phosphorus-Potassium) should be in sufficient quantity to aid the plants development. Too much of any focused nutrient can create a poor growth environment.
There are also cases of heavy metals, used as micro nutrients, surrounded by many fertilizers. Too much of this can stop a plants capability to up-take nutrients.
if you do not get the doseage right you can defile or kill the plant, also I regard maybe if you can upset the soil go together