Wild Rice and the Ojibwe People, by Thomas Vennum

Some website and book resources below:

Wild Rice (Ecology-Harvest-Management) Brochure through Great Lakes Indian Fish and Wildlife Commission (GLIFWC)

1854 Treaty Authority  has information on monitoring, traditional harvesting and finishing, biology, etc. 

Manoomin – the story of wild rice in Michigan, by Barbara J. Barton. Michigan State University Press, 2018.