How does a person manage the growth of tree crowns in a city (in squares or parks)?

Managing the growth of a tree crown in a city: pruning shoots and selectively removing buds to create a crown of trees, for example, bonsai. Applying special growth substances, a person accelerates the growth of stems and leaves, accelerates the development and fruiting of plants.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.