Capping can impede the proper distribution of water through the soil. More information . On African Violets, Captan is used to treat Botrytis and Powdery Mildew . Major element essential to the growth and vitality of African Violets. Sometimes called a free element .
Carbon is absorbed from the air, primarily in the form of carbon dioxide.
Through the process of photosynthesis , carbon combines with hydrogen and oxygen to form plant carbohydrates . Any method for increasing the carbon dioxide that plants receive. African Violets and other plants use carbon dioxide during photosynthesis. Because many plants benefit from increases in the amount of carbon dioxide they receive, some commercial growers have devised means of providing more of this element to their plants than they would normally receive. The effects of carbon dioxide fertilization on African Violets is not fully documented.