A journalist and research dug up ten years worth of data using,
For twelve land-grant universities, including NDSU. This accounted for nearly half agricultural research grants awarded.
The average school got $11 million a year in ag research grants the research showed.
NDSU spends about $160 million a year on research expenditures and is top 100 research university nationwide.
https://investigatemidwest.org/2023/08/17/graphic-midwestern-land-grant-schools-received-at-least-42-of-ag-research-grant-money-data-shows/
That "large portion" is very small. All their grants, competitive and non competitive from federal funding, accounts for less than a 1/3 their expenditures.