Abstract
We attempted to make an agricultural cultivation solution from seawater with a simple process using Ca-A zeolite. By treating seawater with Ca-A zeolite, the pH of the treated solution became neutral, and the salinity decreased to be about 1/3 because the main elements in seawater, Na ＋ and Cl －, were decreased to be less than half. Although radish sprouts did not grow in seawater, they did grow in the solution obtained from seawater treated with Ca-A zeolite. These results suggest that it is possible to make a solution for agricultural cultivation from seawater using Ca-A zeolite.
