Tidal land in Telang Makmur Village, Muara Telang District, Banyuasin Regency, is a suboptimal land with great potential to support food security through rice cultivation, but is constrained by soil chemical properties such as low pH, high exch-Al content, and low availability of Ca and Mg. This study aims to assess the status of exch-Al, pH, Ca, and Mg in soil in 18 ha of rice fields and provi…