Micro nutrient stress occure on plants and how to combite on it

1. Mirco Nutrient stress on
plants
Presented by
Ikram ullah
Agriculture university Peshawar

2. Welcome

3. Micronutrients stress
• In this presentation
we will discuss the
Micro Nutrient stress
i.e deficiencies and
toxicity and their
effect on plants.
• Micronutrients are
needed in relatively
small amounts by
plants.
• They are usually
supplied by fertilizers.
Element Symbol Source
Iron Fe Soil
Manganese Mn Soil
Boron B Soil
Molybdenum Mo Soil
Copper Cu Soil
Zinc Zn Soil
Chlorine Cl Soil

4. Micronutrients – Form Used By Plants
Nutrient Form Used
Iron Fe2+
Manganese Mn2+
Boron H2B03
-
Molybdenum MoO4
2-
Copper Cu2+
Zinc Zn2+
Chlorine Cl-
Charge on the
molecule

5. Micronutrient Deficiencies & Soils
Element Soil Factor Causing Deficiency
Fe Poorly drained soils, Low organic matter soils, pH>7.0, Soils high
in P
Zn Cold wet soils low in organic matter and highly leached, High pH
soils (pH>7.0), Soils high in P, Exposed subsoils
Cu Peat and muck soils, High pH, sandy soils, Soils heavily fertilized
with N
B Excessive leaching on coarse-textured low organic matter soils,
Soils with pH>7.0
Mn Excessive leaching on coarse-textured low organic matter soils,
Soil with pH>6.5
Mo Soils high in Fe oxides, high adsorption of molybdenum, Soil
cropped for a long time

6. Boron

7. Stress(Deficiency &toxicity)

9. Chlorine

10. Stress( Deficiency&toxicity)

11. Copper

12. Stress

14. Iron

16. Stress

17. Manganese-Mn

18. Stress

20. Molebdinum-Mo

22. Zinc-Zn

23. Stress

24. How To Fix Nutrient Stress
• Check the visual symptoms to determine which nutrients might
be causing the problem.
• Check and amend the soil's pH, temperature and moisture level.
Ensure the plant is getting the right amount of light.
• Nutrient imbalances can be a result of an imbalance in the soil,
so Have your soil tested by a laboratory to definitively determine
what nutrient deficiencies or excesses there are.
• Use of chelate fertilizers can fix the micronutrient deficiancies.
• Regularly add organic matter to the soil and the keep it mulched,
to help improve the soil longer term.

25. How to fix nutrient stress
• Provide water if needed, water might be also an issue
because the nutrients are uptaked by plants with water.
• Cultivate those varities which can tolerate the toxicity or
deficiency of the existing nutrient.

26. Thank You All