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Types of Micro Nutirents: Inorganic: ZnSO4, CuSO4, FeSO4 etc. Partially chelated weak ch-ealtes: NTA, H.E.I.D.A, Citric Acid, Glutamate. Fully Chelated strong ch-elates: EDTA, DTPA, HEDTA Complexes: Lignosulphonates, Polyflavonoids, Phenolic Acids. | | Functions in Plants | Type of Soil Conditions | Major Crops | | Zn | Important during early plant growth and maturity. Essential in several enzyme systems and in formation of auxins which regulate growth. | Sandy, High pH soils, High Phosphate soils | Corn,beans,cotton, potatoes,rice,wheat,grapes, sugar, peas | | Mn | Important for growth regulation, photosynthesis & chlorophyll production. Oxidation/Reduction processes. | Sandy, Over- limed soils, organic soils | Beans, cotton, corn, rice, vegetables, fruits. | | Fe | Photosynthesis & chlorophyll production. Convert CO2 to plant energy. Enzyme Systems. | High pH soils, high phosphate soils, calcareous soils. | Beans, potatoes,sugar, small grains, | | Cu | Important part of enzyme systems. Rugulator of imp if processes in plants. Chlorophyll production | 6 % | 6.0 – 7.0 | | Mn - EDTA | Pale Pink | 15 % | 6.0 – 7.0 | | Zn - EDTA | White | 15 % | 6.0 – 7.0 |
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