What is the difference between foliar fertilizer and plant growth regulator?

What is the difference between foliar fertilizer and plant growth regulator? Also ask the netizens who know to help introduce that during the recent visit to the countryside, it was found that some farmers did not have enough understanding of the functions of foliar fertilizer and plant growth regulators, so the farming network sorted out the differences between foliar fertilizers and plant growth regulators. The following is listed for netizens' reference. The role of plant growth regulators: plant growth regulators are pesticides that can control, promote or regulate plant growth and development, which are generally divided into: growth promotion, growth inhibition and other functions; there are strict technical requirements in use, such as use period, dosage, usage and so on. It must be used according to the instructions, otherwise it will have adverse consequences. The effect of plant growth regulator is generally obvious, stable and less affected by environmental conditions, so it can be popularized and applied quickly and is easy to be accepted by users. It is a kind of synthetic organic compounds with plant natural hormone activity. The function of foliar fertilizer: foliar fertilizer is also different from plant growth regulator, also known as plant nutrient agent, plant compound liquid fertilizer, etc. it is a kind of nutrients made of nitrogen, phosphorus, potassium, iron, zinc, manganese, boron, copper and other trace elements together. most of them are foliar fertilizer sprayed to supplement nutrients when crop roots do not absorb water and fertilizer. It can regulate plant growth, supplement the missing elements of plants, prevent premature senility and increase yield. Foliar fertilization can directly and quickly provide nutrients to crops, prevent nutrients from being fixed by soil, and improve fertilizer use efficiency. However, for the areas with high soil fertility and the areas or crops with no lack of these elements, the yield-increasing effect is not obvious. What is dilatins? what should you pay attention to when using plant growth regulators?