Manganese (Mn) is an essential micronutrient with many functional roles in plant metabolism. Manganese in plants,Our company is a large-scale heavy enterprise that taking heavy mining machinery manufactory as main products and integrated with scientific research, production, and marketing. Usually the first sign of manganese deficiency is interveinal chlorosis. Manganese (Mn) is available in soil as Mn 2+. Manganese is an important micronutrient for plants. By acting as a cofactor of various antioxidative enzymes, it is involved in the mechanism of stress tolerance of higher plants (Burnell 1988). Reduction of nitrates in plants is only possible if sufficient manganese is present of plant-available manganese large enough to bring about manganese . Abstract. Here again he produced what I … Manganese (Mn) is an important micronutrient for plant growth and development and sustains metabolic roles within different plant cell compartments. Manganese (Mn) toxicity in plants is often not a clearly identifiable disorder. Spotting Manganese Deficiency. Iron-manganese balance and plant growth 19 In 1851, Salm-Horstmar described further experiments with oat plants grown in sand culture. Manganese acts as an activator and co-factor of hundreds of metalloenzymes in plants. In fact, manganese injury has been shown to be one of the main causes of soil acidity damage in many plant species on many acid soils. We are concentrating on producing and selling machines such as jaw crusher, cone crusher, hammer crusher, ball mill, sand maker, mobile crushing plant 224 E. G. MULDER AND F. C. GERRETSEN toxicity of the plants growing on it. Manganese influences the uptake and assimilation of other nutrients in the plant Manganese affects energy budget by regulating carbohydrate metabolism. Symptoms of Mn toxicity as well as the concentration of Mn that causes toxicity vary widely among plant species and varieties within species, perhaps because the phytotoxic mechanisms of Mn involve different biochemical pathways in different plant genotypes. This means that the portions of the leaves between the veins turn yellow.