As used in this subchapter, unless the context otherwise requires:
1. “Center” means the Iowa nutrient research center established pursuant to section 466B.47.
2. “Council” means the Iowa nutrient research center advisory council established pursuant to section 466B.48.
3. “Division” means the division of soil conservation and water quality created within the department of agriculture and land stewardship pursuant to section 159.5.
4. “Fund” means the water quality initiative fund created in section 466B.45.
5. “Nutrient” includes nitrogen and phosphorus.