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Jonathan Kleinjan

SDSU Extension Crop Production Associate

605-688-4211

Berg Agricultural Hall 225
Agronomy, Horticulture & Plant Science-Box 2207
University Station
Brookings, SD 57007

Jonathan supports the citizens of South Dakota in his role as the SDSU Extension Crop Production Associate at the South Dakota State University campus in Brookings.

Also by Jonathan Kleinjan

green plant growing in a field with small grains growing on the ends

Proso Millet Trial Results

In 2020, proso millet trials were conducted in 1 location in South Dakota.

A young man sitting at a laptop discussing a project with a 4-H leader.
Mar 09

Crop Hour: Understanding SDSU Extension Agronomy Research Webinars

Would you like to learn more about ag research and our current projects? Join us Mar. 9, 10, 11, and 12 at 10 a.m. CST.

a sprawling, green oat field
Feb 09

Crop Hour: Oats Webinars

Would you like to learn more about oats? Join us Feb. 9, 10, 11 and 12 at 10 a.m. CST.