Fertilizer for plant cultivation comprising washing wastewater, plant cultivation method using this fertilizer, and method for using washing wastewater as fertilizer for plant cultivation

摘要

An object of the present invention is to provide a magnesium hydroxide [Mg (OH) ₂ ] fertilizer for supplying magnesium to a plant without cost and labor, and using the magnesium hydroxide [Mg (OH) ₂ ] fertilizer It is to grow plants safely and economically. The above problem is that laundry wastewater containing magnesium hydroxide [Mg (OH) ₂ ] after washing laundry with a magnesium material containing water and metallic magnesium (Mg) as the main components is magnesium hydroxide. [Mg (OH) ₂ ] It can be solved by effectively using it as a fertilizer.