In this chapter, unless the context otherwise requires:
1. "Agricultural operations" means all activities by the owner, lessee, agent, independent contractor and supplier conducted on any facility for the production of crops, livestock, poultry, livestock products or poultry products.
2. "Farmland" means land devoted primarily to the production for commercial purposes of livestock or agricultural commodities.
3-112. Agricultural operations; nuisance liability
A. Agricultural operations conducted on farmland that are consistent with good agricultural practices and established prior to surrounding nonagricultural uses are presumed to be reasonable and do not constitute a nuisance unless the agricultural operation has a substantial adverse effect on the public health and safety.
B. Agricultural operations undertaken in conformity with federal, state and local laws and regulations are presumed to be good agricultural practice and not adversely affecting the public health and safety.