Mountain Division

A plant’s health depends on getting its nutrients exactly when needed. Ensuring the strength and growth of your crop is the foundation of Centennial Ag Supply Co., and our mobile Mountain Division employees pride themselves in their accurate and on-time delivery and application of fertilizer and pesticides.

The staff of the Mountain Division travels near and wide throughout the western region of Colorado and the bordering states to help you meet your growing needs, no matter where you are. As the travelers of the company, the qualified experts spend their days in their trucks and in your office to bring Centennial Ag Supply Co. products when and where you need them. Using their custom GPS system, they deliver quality blends on time with precision application.

Timeliness, accuracy and quality:  That’s our promise to you.

Sales Team

John Derosier

John Derosier, Field Representative; Turf & Ornamental and Mountain Divisions - Kersey, CO

John has been in the landscaping, lawn care and land use management industry for over twenty years with five of those years here at Centennial Ag Supply Co. John has a Bachelor of Science from Colorado State University in Natural Resource Management. He is a proud supporter of several organizations including Rocky Mountain Regional Turf Grass Association (RMRTA), International Society of Arborists (ISA), Rocky Mountain Agribusiness Association (RMAA), and Colorado Weed Management Association (CWMA). John specializes in Turf grass and trees as well as grass hay and alfalfa production.