Fertilizer for plant cultivation consisting of laundry wastewater， plant cultivation method using this fertilizer and method of using laundry wastewater as fertilizer for plant cultivation

An object of the present invention is magnesium hydroxide [Mg (OH) for imparting magnesium to plants 2Providing fertilizers without cost or labor and magnesium hydroxide [Mg (OH)2] Fertilizers are used to grow plants safely and economically. The said subject is magnesium hydroxide [Mg (OH) after wash | cleaning laundry using the magnesium material which contains water and metal magnesium (Mg) as a main component.2] Washing wastewater containing magnesium hydroxide [Mg (OH)2] Can be solved by effectively using as a fertilizer. The present invention addresses the problem of providing a magnesium hydroxide [Mg(OH) 2] fertilizer for supplying magnesium to plants without requiring cost and labor and safely and economically cultivating plants with the use of the magnesium hydroxide [Mg(OH)2] fertilizer. This problem can be solved by effectively utilizing magnesium hydroxide [Mg(OH)2]-containing laundry wastewater， which is obtained after washing laundry with the use of water and a magnesium material containing metallic magnesium (Mg) as a main component， as a magnesium hydroxide [Mg(OH)2] fertilizer. The present invention addresses the problem of providing a magnesium hydroxide [Mg(OH)2] fertilizer for supplying magnesium to plants without requiring cost and labor and safely and economically cultivating plants with the use of the magnesium hydroxide [Mg(OH)2] fertilizer. This problem can be solved by effectively utilizing magnesium hydroxide [Mg(OH)2]-containing laundry wastewater， which is obtained after washing laundry with the use of water and a magnesium material containing metallic magnesium (Mg) as a main component， as a magnesium hydroxide [Mg(OH)2] fertilizer.