Nutrient deficiency and toxicity disorders in plants
1. Nitrogen (N)
Deficiency:
Buttoning in cauliflower
Toxicity:
Hollow stem in cauliflower
2. Phosphorus (P)
Deficiency:
Sickle leaf disease
3. Potassium (K)
Deficiency:
Yellow
white mottling of cotton
Firing of tobacco leaves
Toxicity:
Blotchy ripening of tomato (K excess & N imbalance)
4. Calcium (Ca)
Deficiency:
Blossom end rot in tomato
Bitter pit in apple
Pillow diseases of cucumber
Die back disease of pea
5. Sulphur (S)
Deficiency:
Tea yellow diseases
6. Magnesium (Mg)
Deficiency:
Reddening
of leaves in cotton
Sand
drawn diseases in tobacco
Grass tetany (animals)
7. Iron (Fe)
Deficiency:
Papery white (complete whiteness of leaves)
Yellowing of groundnut
White eye of rice
Leaf bleaching in sugarcane
Ivory white of paddy
Toxicity:
Browning of rice
Bronzing in leaf blade rice (>300 ppm)
8. Manganese (Mn)
Deficiency:
Sugarcane blight
Pahlala blight of sugarcane
Marsh spot of pea
Grey speak of oat
Speckled yellow of sugarcane
Frenching of tung tree
Water core in Brassica
Spotted yellow diseases in sugarbeet
Toxicity:
Crinkle leaf of cotton
9. Zinc (Zn)
Deficiency:
Mottle leaf of cotton
White bud of maize
Khaira disease in rice
Little leaf in citrus brinjal & mango
Fern leaf disease of potato
Mottle leaf & frenching in citrus
Bronzing in Guava
Bunchy disease in peanut
Trenching on citrus
10. Copper (Cu)
Deficiency:
Exathema in citrus
Dieback of shoot in citrus
Reclamation diseases in cereal (acid soil)
Stem melanosis in wheat
Little leaf of citrus
white tip in cereals
11. Molybdenum (Mo)
Deficiency:
Yellow spot of citrus,
Whip tail of cauliflower (rat disease)
Toxicity:
Molybdnosis (>5 ppm in animal) (imbalance of Mo & Cu)
12. Boron (B)
Deficiency:
Heart rot of
sugarbeat & marigold
Yellow tip of
alfa-alfa
Brown heart of
turnip, radish & tablebeet
Yellowing & rosetting in lucerne
Snake heart in walnut
Die back in apple
Fruit cracking
Orking & pitting of fruit in tomato
Brownzing of curd in cauliflower
Black tip of mango
Internal necrosis of
aonla
Hen & chicken diseases in grapes
Hollow heart or heart rot of sugarbeat
Hollow stem in cauliflower
Top sickness of tobacco
Internal cork of apple
Browning in cauliflower
Puffiness in tomato
Canker of tablebeat
Water corn of turnip
Black measles of apple
Corking of apple
Crown choking in coconut
Descriptive content about micronutrient and its role
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