PART THREE: CULTIVATING.

Part Three of the book "The Operation, Care, and Repair of Farm Machinery," by John Deere is presented. It focuses on the purpose of cultivating row crops during the growing season. It states that cultivation aims to destroy the weeds in the field, because weeds are disturbance to the growth of the crops. It adds that cultivation creates a moisture-saving surface mulch and gives air and light to the soil that are essentials to plant growth.