This document discusses different types of agricultural cultivators used to prepare soil. It describes spring tyne cultivators, rigid tyne cultivators, cultivators of the rigid tyne shovel type, and cultivators of bar points. Spring tyne cultivators have springs to prevent damage and are used for seedbed development and puddling. Rigid tyne cultivators have adjustable tines and are versatile for aerating and preparing seedbeds. Rigid tyne shovel cultivators are used for breaking soil, preparing seedbeds, and weeding. Bar point cultivators have clamped tynes and are used for light soil preparation like seedbeds and subsoil cultivation.