A bill for an act providing for a commercial fertilizer study conducted by the department of agriculture and land stewardship, and providing for conditional implementation.

This bill requires Iowa's Department of Agriculture and Land Stewardship to conduct a four-year study on reducing nitrogen-based fertilizer use in crop production. The study will partner with Iowa crop producers who set aside acres to test alternative products (like soil conditioners or biofertilizers) that cost-effectively promote plant growth while reducing water pollution from nitrogen runoff. Participants will receive $5 per acre annually, and the department must submit preliminary and final reports to the legislature by 2028 and 2031, identifying effective products for corn and soybeans. The study is conditional on legislative funding and will expire on July 1, 2031.