Rice Seedling Substrate Produced by Coal Gangue

Peats are the mostly used material in making rice seedling substrate. However, mining peats could cause environmental problems. In order to reduce or replace peats in rice seedling substrate industry, this paper studied suitable way to configure rice seedling. The coal gangue was used to experiment cultivating rice. Four rice seeding experiments were carried out based on physical and chemical properties of materials attributes. The results showed:(1) Coal gangue was feasible for rice seedling; (2) The maximum adding amount of coal gangue was 80%(volume ratio) though the coal gangue need to be activated; (3) In the case of no activated treatment only 38%(volume ratio) of coal gangue could be added to the substrate.