Plant growth regulator is a kind of substance which inhibits or promotes the growth and development of plants. Includes synthetic compounds and natural plant hormones extracted from organisms. It is widely used in agricultural production around the world to question its safety. Industry insiders pointed out that according to the batch test results, do not see the existence of plant growth regulators. 
After spraying plant growth regulators, they will be present in the soil for a long time and will not break down easily
 it can be considered that the safety of plant growth regulator is more reliable.