Inter sows means to plant seeds in between rows of existing plants. Some synonyms for inter sows include interplanting, undersowing, intercropping, companion planting, and relay planting. Interplanting is the practice of planting two or more types of crops in the same field to maximize space and improve soil health. Undersowing is planting a different crop between rows of an established crop to maintain soil fertility and provide a cover crop. Intercropping involves planting two or more crops in the same field to reduce pests and diseases, improve soil fertility, and increase yields. Companion planting involves planting different crops next to each other that can benefit each other, such as planting beans next to corn. Relay planting means planting a crop in between another crop's harvest to maximize land use.