This invention, the effect being secure, the usefulness, offers nitrogen-containing heterocycle chemical compound, or that salt which is displayed with formula (i) as a active ingredient of the bactericide for agriculture and horticulture which can be used safely.本発明は、効果が確実で安全に使用できる農園芸用殺菌剤の有効成分として有用な、式(I)で表される含窒素ヘテロ環化合物、またはその塩を提供する。