Our Team

Meet the Team

Our team is diverse; the individuals that make that team come from various educational and vocational backgrounds. The one thing we all have in common is a belief is agricultural sustainability, soil health, and leaving a better world for the next generation. 

Chris Graham

Director, Sales & Marketing; Global Representation | Office: (403) 827-9949

With 25+ years of sales and marketing experience, Chris has worked in various industries including distribution, manufacturing, oil & gas and technology. He's happy to have joined Black Earth in 2019 to make tremendous advancements for our clients and soil sustainability.

Chris has primarily lived in Canada, but did spend some time going to school in Phoenix, Arizona. He's been happily married for 10 years and they both enjoy traveling


Ryan Young

Ag Market Development Lead; Global Representation | Office: (403) 930-1965

Ryan was born & raised on a family farm in Manitoba, U of M Ag grad, 8 years in prairie ag retail sector. He then spent 7 years working in international agriculture (primarily Russia), highlighted by 4 years working on the setup and management of a 50,000 acre irrigated corporate farming operation in Stavropol. He returned to Canada in 2016 with a goal of expanding out of conventional agriculture into organic & biological production practices, leading him to Black Earth.

Ryan has worn many hats at Black Earth, in sales & management, and is now focused on expanding product lines for our agricultural and horticultural clients. 


Luke Serbina

Sales Representative, Canada & Pacific Northwest United States | Office: (403) 930-1963

Luke has the following certifications: Niagara Parks School of Horticulture - Graduate Diploma, Olds College - Bachelors of Applied Science: Agribusiness, International Society of Agronomy - Certified Crop Adviser Prairie Provinces. 

With Black Earth, Luke covers territory including British Columbia, Alberta, Saskatchewan, Manitoba, Ontario and Quebec, as well as the Maritime provinces in Canada. In the USA, he covers Washington State, Oregon, Idaho, Utah, Montana, Wyoming, and Colorado. Luke can also help customers located on the East Coast such as: Virginia, Pennsylvania, New York & Main.


Mike Erdman

Midwest Sales Representative: Midwest United States | Office: (815) 419-5488

Mike is a certified crop adviser specializing in soil biology and chemistry. Mike has been in this industry since 1992. Prior to 1992, Mike farmed in eastern Illinois. 

Since 2015, Mike has dedicated his time to representing Black Earth in the Midwest, serving growers and retail fertilizer dealers. 


German Rodríguez

International Sales; Latin America, Europe, Asia, Africa & the Middle East | Office: (403) 930-1487
Languages Spoken: English, Spanish.

German is an agricultural engineer (Zamorano University (Honduras) specializing in international business development and sales, with over 10 years of experience. 

He started working with Black Earth in 2017 and oversees sales and account management covering over 30 countries with a growing portfolio of clients. He has implemented strategic growth plans for market development and has established new business ventures and solidified existing partnerships.

German is originally from El Salvador. His family produces and imports coffee, and so he has been involved in the agriculture industry his whole life. He completed an internship at the Tropical Agriculture Research & Higher Education Centre (CATIE). He's lived in Canada for over 12 years, working in the agriculture industry. He's lived in Toronto, Vancouver & Calgary.


Juwen Zhang

Business Representative; Greater China Region         | Office: (86) 13810935569
Languages spoken: English, Mandarin.

Juwen has been with Black Earth since 2018, and has an MSc from Wageningen University (the Netherlands), and experience working in multi-cultural and multi-national companies. He's also capable of handling complicated markets, products, managing brands and developing international business. 

Juwen's goal is to bridge the business connection between Canada, a country with rich natural resources, with China, one of the largest markets in the world.  


John Herlihy

Sales Representative; West Coast (California, Arizona, Utah & Nevada) | Office: (209) 450-5117

John's focus with Black earth has been promoting soil health with his customers. His experience that brought him to Black Earth includes 20 years as a PCA, working in the field for 19 years, and in Agricultural banking for 20 years. 

John has lived in Modesto, California since graduating college. He's married with 2 adult children.