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. 2013 Acts, ch 132, §59 ; 2015 Acts, ch 103, §53