1. Nitrogen (N) Deficiency
Symptoms:
- Chlorosis (yellowing) of older leaves
- Slow growth and lack of vigour
- Retarded growth and loss of chlorophyll
- Reduced fruit production
- Excessive vegetative growth with reduced fruit productivity and quality
Corrective Measures:
- Apply Nitrogen in the form of Urea and Ammonium Sulphate, according to the age of the tree.
- Refer to the Vijayshri nutrition package for specific details.
2. Phosphorous (P) Deficiency
Symptoms:
- Rarely observed, but when present:
- Necrosis on leaf margins and brown spots
- Reduced root development and nutrient absorption
Corrective Measures:
- Apply Phosphorous in the form of SSP or complex fertilizers, depending on tree age.
- Refer to the Vijayshri nutrition package for specific details.
3. Potassium (K) Deficiency
Symptoms:
- Yellowing in older leaves with irregular punctuations
- Thinner and smaller leaves
- Premature leaf drop
- Reduced disease resistance and fruit quality
Corrective Measures:
- Apply Potash (MOP) based on tree age.
- Refer to the Vijayshri nutrition package for specific details.
4. Calcium (Ca) Deficiency
Symptoms:
- Short, chlorotic plants
- Darkened leaf margins and drying from tips, especially in younger leaves
Corrective Measures:
- Apply Calcium Nitrate (7.5 grams per litre of water) for spraying.
5. Magnesium (Mg) Deficiency
Symptoms:
- Reduced growth, premature leaf fall
- Dark green, inverted V-shaped chlorosis in leaf margins
- Interveinal chlorosis affecting photosynthesis
Corrective Measures:
- Apply Magnesium Sulphate (7.5 grams per litre of water) for spraying.
- Alternatively, apply Sanexsol (10 grams per litre of water) for spraying.
6. Sulphur (S) Deficiency
Symptoms:
- Pale yellow colour in younger leaves
- Stunted growth and delayed flowering
- Reduced fruit size and quality
Corrective Measures:
- Apply Fuegrow (3.0 grams per litre of water) for spraying.
7. Boron (B) Deficiency
Symptoms:
- Symptoms start in young plant parts
- Brown spots on intermediate leaves and reduced flower production
- Fruit cracks, flower and fruit drop
Corrective Measures:
- Apply Boro GR as a soil application with complex fertilizers.
- Alternatively, spray Boro Q (1.5-2.0 grams per litre of water).
8. Copper (Cu) Deficiency
Symptoms:
- Death of terminal branches
- Light bluish-green leaves with pale yellow tips
Corrective Measures:
- Apply Copper Sulphate (2.0 grams per litre of water) for spraying.
- Alternatively, spray Copper Oxy Chloride (3.0 grams per litre of water).
9. Iron (Fe) Deficiency
Symptoms:
- Chlorosis in younger leaves with loss of chlorophyll
- Stunted growth and interveinal chlorosis
Corrective Measures:
- Apply Raze Fe (1.0 grams per litre of water) for spraying.
- Alternatively, spray Swarnaphall (4.0 grams per litre of water).
10. Manganese (Mn) Deficiency
Symptoms:
- Reduced growth and yellowish-green leaves in younger plants
- Brown or pink streaks on leaves with severe deficiency
Corrective Measures:
- Apply Swarnphall (4.0 grams per litre of water) for spraying.
11. Zinc (Zn) Deficiency
Symptoms:
- Small, narrow, thick, and inflexible leaves
- Poor branching and floral malformations
- Delayed flowering
Corrective Measures:
- Apply Raze Zn (2 grams per litre of water) for spraying.
- Alternatively, spray Swarnphall (4.0 grams per litre of water).