The invention provides a soil disinfector utilizing solar heat, which is simple in structure, inexpensive in price, and capable of disinfecting soil without operation cost, thereby being easy to use for people growing vegetables in small scale, for example, in household gardens. The soil disinfector utilizing solar heat comprises a container (2) which contains soil (1) and a reflecting plate (3) which reflects sun light to the container (2) and using heat of the sun light to heat and disinfect the soil (1) in the container (2). The container (2) is light-transmittable. The reflecting plate (3) is formed by a main reflecting plate (3a) erected opposite to a northward surface of the container (2) and an auxiliary reflecting plate (3b) laid on a setting surface of the container (2).【課題】 簡単、安価な構造で、また運転コストがかからない状態で土壌の消毒を可能にし、家庭菜園等の小規模で野菜等を栽培する人が利用し易いよう形成した太陽熱利用の土壌消毒器を提供する。【解決手段】 土壌1を入れる容器2と、この容器2に太陽光を反射して太陽光の熱エネルギーで容器2内の土壌1を加熱殺菌する反射板3とを備える。容器2を、透光状に形成する。反射板3を、容器2の北側に向いた面に対応して立てられる主反射板3aと、容器2の設置面に敷かれる補助反射板3bとで形成する。【選択図】 図1
