| 摘要 |
A method for preparing bed soil using bittern produced from deep ocean water and fully fermented compost is provided to improve a growth rate of agricultural products. A method for preparing bed soil comprises the following steps of: eliminating the salt from bittern through electrodialysis, electro-extraction or freezing; putting the salt-removed bittern in a reactor and pouring freshwater to it; dissolving a magnetic material-containing mineral in a hydrochloric acid aqueous solution and inputting the dissolved mineral with organic acid chelates into the reactor; adding a pH adjustor to control the pH to a range of 5-7; magnetization-treating the reactant; and mixing fully fermented compost, the magnetization-treated reactant and an additive. The magnetic material is selected among magnetite, monazite, xenotime, churchite and bastnaesite. The organic acid is selected among citric acid, tartaric acid and ethylene diamine tetra acetic acid. The pH adjustor is selected among ammonia water, potassium hydroxide and calcium hydroxide. The additive is selected among burnt chaff, bark compost, leaf litter, sphagnum moss and peat moss. |
