What is the process of placing seeds in holes made in seedbeds and covering them called? 

Sowing is the process of planting seeds in the soil in order to grow crops. This includes preparing the soil, selecting the appropriate seeds, and planting the seeds at the proper depth and spacing with tools. 

Dibbling is the process of placing seeds in holes made in seedbeds and covering them. 

In this method, seeds are placed in holes made at definite depths at fixed spacing. 

The equipment used for dibbling is called a dibbler. It is a conical instrument used to make proper holes in the field which makes the seeding process easier.