In this subdivision: I. "Department" means the department of agriculture, markets, and food. II. "Forages" means hay, haylage, silage, and pasture. III. "Homegrown feed" means forages and grain, or a composite in any combination grown on land owned or leased by the producer. IV. "New producer" means a producer who initiated milk production in 2016. V. "Producer" means a dairy farmer, as permitted or licensed under this chapter, engaged in the business of producing milk in New Hampshire and sold wholesale or retail for any purpose.