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Plant Essential Minerals // Plant Essential Minerals are elements that are needed in only small amounts.
Micro means small. The essential micronutrients are elements that are needed in only small amounts. There are seven of these: Boron (B), Molybdenum (Mo), Zinc (Zn), Iron (Fe), Manganese (Mn), Copper (Cu) and Chlorine (Cl).    
Plants can suffer from a deficiency or an excess of any of these nutrients, depending on their soluble concentrations in the root zone. The micronutrient availability is influenced by soil pH. As the pH increases from 4.0 to 7.0, the solubility of boron, zinc, iron, manganese and copper decreases. In contrast, the solubility and availability of molybdenum increases as the pH increases. Liming to a pH of 6.0 to 6.5 usually strikes a favorable medium.
Soils can be tested for micronutrients, but testing is expensive and generally is not needed. Instances where a micronutrient deficiency might exist would be: sandy soils low in organic matter; subsoils exposed due to grading or land leveling; cold and wet weather with slow breakdown of organic matter; alkaline soils; and very high levels of other nutrients (high phosphate levels can induce zinc deficiency).
Plant Food
Major Nutrients Carbon ,Oxygen ,Hydrogen, Nitrogen, Phosphorus, Potassium
Secondary Nutrients Calcium ,Magnesium ,Sulphur
Micronutrients Zinc, Copper, Iron, Manganese, Boron, Chlorine
Concentrations Of Essential Elements In Higher Plants
Element ppm % age
Carbon 450,000
Oxygen 450,000
Nitrogen 15,000
Potassium 10,000
Calcium 5,000
Magnesium 2,000
Phosphorus 2,000
Sulphur 1,000
Chlorine 100 0.01
Boron 20 0.002
Iron 100 0.01
Manganese 50 0.005
Zinc 20 0.002
Copper 6 0.0006
Molybdenum 0.1
Foliar Fertilizer
Food elements fed through leaves to correct hidden or apparent hunger in crop plants and fruit trees.
Why Foliar Fertilizer
  • Fine Tune: High fertility program
  • Wide spread use of NPK
  • High analysis fertilizer
  • Soil exhaustion
  • Soil sickness (ph pan , salts ,microbes)
  • High Yielding/ Short Duration Varieties
Benefits of Foliar Fertilizer
  • Nutrients directly mobilized.
  • Foliar fertilization is most effective way to supply trace elements.
  • Foliar Fertilizer provide quick remedy
  • Foliar Fertilizer correct deficiency ,strengthen weak crops.
  • In case of limited root capacity fulfill demand supply gaps.
  • Foliar Fertilizer supplement and not supplant solid fertilizer.
Essential Nutrients
1. Zinc
  • Component of enzyme system
  • required for synthesis of proteins.
  • Effects size and maturity
  • Yellowing between leaf veins with purple/dead spots on the older leaves. Leaves small, deformed and closely spaced. Defective fruiting.
2. Boron
  • Cell Wall formation
  • Flower Retention, pollen formation and germination.
  • Seed and grain production
  • Scorched, mottled discolored and curled leaves.
  • Stunted Growth
3. Manganese
  • Essential component of many enzymes and important for Chlorophyll formation.
  • Yellow leaves with green veins, white or grey flecks, starting with oldest.
4. Copper
  • Required for protein synthesis and reproductive functions.
  • leaves become bluish-green, wither or remain folded. Yellow-edged tips of young leaves. Abnormal rosette formation at growing points.
5. Iron
  • Required for chlorophyll formation and production of oxygen. Necessary for chlorophyll synthesis.
  • Yellow leaves with green leaf veins, starting with most recent. May be caused by excess calcium.
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