Gypsum is an excellent fertilizer source for calcium and sulfur, improves soil structure and compacted soils, amends and reclaims soil high in destructive sodium and magnesium, replaces harmful salts, helps with high bicarbonate irrigation water, enhances water use efficiency, reduces runoff, eroision and soil crusting, counteracts acidity in subsurface soils and helps rebuild the supply of soil organic matter. Of all calcium compounds, gypsum is considered the most convenient to use, inexpensive in price, and is a natural organic source. From the standpoint of plant nutrition and as a soil conditioner or soil amendment, gypsum uniquely helps soils be more productive and more fruitful than any other single product on earth.