Bondurant / Iowa / United States
About Nutri-CalNutri-Cal is the Number 1 organically complexed liquid calcium supplement and plant nutrient product sold today. It is made by the C.S.I. Corporation of Bondurant, Iowa, a family owned and operated fertilizer manufacturing company that first opened its doors in 1955.C.S.I. originally manufactured liquid fertilizers for grain farmers and other retail dealers throughout the mid-west. Then we diversified and entered the fruit, vegetable and turf markets throughout the United States and now serve clients all over the globe.We first began developing a liquid calcium supplement for Iowas corn and soybean market in 1973. At the time the soils tested high in calcium, but the pH was low in many area soils. Because a lot of nitrogen was used, it created high hydrogen levels in the soil. We sold agricultural lime to help correct this, but found that it took several years to break down. Soil tests revealed the need for more lime ( calcium ) and yet the yields were not increasing. We set out to find an alternative that would both release and keep available the calcium that was already in the soils.
