Main advantages are:
• Fast acting correction of deficiencies. EASY TO USE.
• Rapid leaf uptake and utilisation
• Compatible with most fertilizers and pesticides. ENVIRONMENTALLY SAFE.
• Non-phytotoxic to plants AND NOT CORROSIVE TO EQUIPMENTS.
Manganese’s Role in Plant nutrition
symbol: Mn; available to plants as Mn2+, Mn3+
- Mn primarily functions as part of the plant enzyme system, activating several metabolic functions. It is a constituent of pyruvate carboxylase.
- Mn is involved in the oxidation-reduction process in photosynthesis.
- Mn is necessary in Photosystem II, where it participates in photolysis.
- Mn activates indole acetic acid oxidase, which then oxidizes indole acetic acid in plants.
Manganese the resistance of plants to root and foliar diseases
Manganese is probable the most studied micronutrient, about its effects on disease and is important in the development of resistance in plants to both root and foliar diseases.
Mn availability in the soil varies and depends on many environmental and soil biotic factors. Mn is required in much higher concentration by higher plants than by fungi and bacteria and there is opportunity for the pathogen to exploit this difference in requirement.
Manganese fertilization can control a number of pathogenic diseases such as powdery mildew, downy mildew, take-all, tan spot, and several others.
Mn has an important role in lignin biosynthesis, phenol biosynthesis, photosynthesis and several other functions. Mn inhibits the induction of aminopeptidase, an enzyme which supplies essential amino acids for fungal growth and pectin methylesterase, a fungal enzyme that degrades host cell walls.
Manganese controls lignin and suberin biosynthesis through activation of several enzymes of the shikimic acid and phenylpropanoid pathways. Both lignin and suberin are important biochemical barriers to fungal pathogen invasion, since they are phe- nolic polymers resistant to enzymatic degradation.
Lignin and suberin are believed to contribute to wheat resistance against powdery mildew and to all diseases caused by Gaeumanomyces graminis. It has also been shown that Mn soil applications reduce common scab of potato, Fusarium spp. infections in cotton and Sclerotinia sclerotiorum in squash.