Agriculture Secretary Brooke Rollins said a large swath of the country’s farmers will be unaffected this planting season, despite the rising fertilizer costs stemming from the Iran war.

“The good news is that about 80% of our farmers, actually, last fall locked in their fertilizer,” Rollins said to reporters outside the White House on Monday. “So as we’re moving into planting season, it’s only about 20% to 25% of our farmers that didn’t lock that in. We are working directly to ensure that we can get them what they need and it won’t bankrupt them.”