Gypsum is a soft sulfate mineral composed of calcium sulfate hydrate, with the chemical formula CaSO4-2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk, chalk, and drywall. In pure gypsum contents calcium 23.28%, sulfur 18.62% and Magnesium 1.3%. - Gypsum powder is used in agriculture as a soil conditioner and fertilizer. - Applying it to soil as a fertilizer contributes calcium and sulfur, two nutrients used by plants. - Gypsum powder is especially beneficial to corn and soybeans, which need a lot of sulfate in thee soil to thrive. And powerful land fertilizer, can pre-use as fertilizer before planning. - Non-plowing farming system, in soil reforming to be moisture retention and to mix the soil can use effectively.