I

IRRI: International Rice Research Institute. Helps farmers with research on rice production.

iodine: A chemical element essential to the body, especially to the functioning of the thyroid gland, and is found in seaweed. Knowledge of iodine is important for farmers to ensure the health of livestock and prevent deficiencies.

IWS: International Wool Secretariat (now called The Woolmark Company). Helps wool farmers with market support and research.

intervention: The act of making a change in a system. Helps farmers implement necessary changes in farming practices.

inhibitor: A device or substance which prevents or limits the effect of something. Helps farmers use appropriate inhibitors to manage agricultural processes.

invasion: The arrival of large numbers of unwanted organisms into an area. An invasion of weeds. Helps farmers manage invasive species.

intraspecific: Occurring within a species. Helps farmers understand breeding and genetic diversity within species.

incubation: The process of keeping eggs warm until the young birds come out, either by an adult bird sitting on them or by artificial means. Helps farmers manage poultry production.

intensive agriculture: A method of farming in which as much use is made of the land as possible by growing crops close together, growing several crops in a year or using large amounts of fertilizer. Opposite extensive agriculture. Also called productive agriculture. Helps farmers maximize land use efficiency.

improved varieties: New species of plants which are stronger or more productive than old species. Helps farmers increase crop yields and resilience.