NITROGEN Def. Yellowing of leaves.
POTASSIUM Def. Necrosis of stem and fruits.
MAIZE:
NITROGEN Def. Yellowing of tips progressing along midrib & leaf become brown.
POTASSIUM Def: Brown edge scorching leaves
COTTON:
NITROGEN: Def. Yellow color of foliage and slow growth.
Mag Def. Purplish red color with green veins.
POTATO:
NITROGEN Def. Distinct loss of chlorophyll at leaf margins with light green color in the center.
POTASSIUM Def. Bronzing and yellowing of leaves with dead edges.
Crop |
Nutrients |
Deficiency Symptoms |
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A Field Crops |
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1. Wheat |
Nitrogen |
Leaves pale green, less tillering, shoots dwarfed. |
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Phosphorous |
Leaves bluish green with purplish, less tillering. |
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Calcium |
Plants stunted, with high mortality of seedlings. Leaf tips chlorotic and die back. |
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Magnesium |
Older leaves much yellow and show dying off, the younger leaves, generally slightly pale green, later turning brownish. |
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Potassium |
Internodes short, leaves slightly chlorite, bluish green, tips generally scorched. |
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2. Maize |
Manganese |
Leaves with intervenial white streaks. |
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Nitrogen |
Leaves pale green, stems and leaves show red tint. |
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Phosphorous |
Stem and leaves with purplish tine, leaves pale green. |
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Potassium |
Internodes short, leaf margins brown and scorched. |
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3. Brassica |
Nitrogen |
Leaves pale green older leaves with reddish to purplish tints, leaves defoliate early. |
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Phosphorous |
Leaves with dull appearance. |
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Calcium |
Chlorotic young leaves, leaf tips brown and margins scorched. |
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Potassium |
Leaves dark green, curling backwards, scorching of the leaf margins. |
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4. Sugar beet |
Nitrogen |
Leaves pale green, plants with stunted growth. |
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Phosphorous |
Leaves dull green, plants with stunted growth. |
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Calcium |
Marginal scorching of older leaves and death of the growing points. |
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Magnesium |
Chlorosis near leaf margins and on tips, later necrosis develops. |
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Manganese |
Older leaves get wilted and scorched, also puckering of leaves. |
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B. Vegetable Crops |
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1. Potato |
Nitrogen |
Leaves pale green, plants with stunted growth, older leaves turn yellow and defoliate early. |
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Phosphorous |
Leaves dull green, with scorched margins. |
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Potassium |
Internodes short, leaves curl backward, near the margins, Leaves bluish green with bronzed appearance and scorched margins. |
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2. Beans |
Nitrogen |
Growth retarded, leaves small pale green early defoliation |
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Phosphorous |
Stem dwarfed and thin, early defoliation, leaves show bronzing |
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Calcium |
Growth stunted, young leaves distorted, growing points die out. |
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Magnesium |
Older leaves slightly pale with intervenial Chlorosis. |
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Potassium |
Short internodes, leaf margins scorched. |
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3.Peas |
Phosphorus |
Leaves becoming dull green, less flowering, growth stunted. |
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Calcium |
Growth restricted, leaves with intervenial Chlorosis, wilting or older leaves. |
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Potassium |
Internodes short, growth retarded. |
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Boron |
Growth stunted and stems brittle. Larger leaves with intervenial Chlorosis. |
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4. Carrot |
Nitrogen |
Plant’s growth stunted. Leaves pale green. Reddish tinge developing on older leaves. |
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Phosphorous |
Foliage showing purplish tinge. Plant growth rather restricted. |
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Magnesium |
Prominent Chlorosis for older leaves. |
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Potassium |
Scorching of tips of older leaves, later becoming brownish and die off. |
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Boron |
Plants assuming bushy appearance. Young leaves distorted, showing some signs of chlorosis. |
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5. Onion |
Nitrogen |
Growth stunted, foliage pale. Leaves die back from tips. |
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Phosphorous |
Foliage showing dull green appearance, growth retarded. |
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Potassium |
Chlorosis of leaf tips, leaves dull green and die back from tips. |
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Phosphorous |
Plants dwarfed, leaves small, bluish green developing purplish tinge. |
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7. Pepper |
Nitrogen |
Stunted plant growth, leaves small, yellow, and fruits yellow green. |
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Phosphorous |
Restricted growth. Fruit small and leaves yellowish. |
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Potassium |
Small necrotic lesions along the vein of bronzed leaves. |
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Calcium |
Stunted growth, leaves dark green. Fruit small and darker green. |
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8. Lettuce |
Nitrogen |
Leaves pale green, older leaves yellow and get withered. |
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Potassium |
Restricted growth, leaves dark green. In case of severed deficiency, yellow spots develop near the tips of older leaves. |
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Phosphorous |
Plants stunted, dull and dark green, reddish purple tinge on the leaves. |
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Magnesium |
Yellowish margins of older leaves, later become scorched. |
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9. Cucumber |
Nitrogen |
Restricted plant growth. Stem thin with yellowish leaves; fruits pale and of poor quality. |
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Phosphorous |
Younger leaves small and dark grayish green. Both veins and intervenial areas becoming brownish. |
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Potassium |
Marginal chlorosis and browning of leaves, later spreading interveinally. Leaf margins turn brown and later dry out. |
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Magnesium |
Chlorosis and intervenial yellowing of fruit. |
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Calcium |
Yellowing of leaves. Plants show stunting, roots poorly developed, thicker and shorter. |
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Sulphur |
Upper leaf surface pale green, yellow, showing chlorosis. |
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Iron |
Yellowish green younger leaves. Plants short. |
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Manganese |
Intervenial chlorosis, veins remaining green. Growth retarded. |
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C: Fodder crops |
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Clover |
Potassium |
Brownish to whitish spots near leaf margins, later scorching of leaf margins, leaves also show some signs of Chlorosis. |
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Phosphorous |
Leaves dull green. Plants with less foliage. Purplish or bronzed spots on leaf surface. |
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Calcium |
Growth restricted, young shoots with and die off. Leaf margins become brown to reddish brown. |
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Magnesium |
Yellowing of older leaves. Leaf margins become brown to reddish brown. |
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D: Fruit plants |
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1-Apple |
Phosphorous |
Leaves small, dull green with purple to bronzed tint (tinge). |
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Potassium |
Stunted growth leaves bluish green, slightly chlorotic. L margins scorched. |
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Magnesium |
Leaves with intervenial chlorosis, especially near margins. |
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Nitrogen |
Leaves smaller, pale green, leaves fall early. Fruit small. |
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Calcium |
Leaf margins scorched, curling upward. |
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2. Strawberry |
Phosphorous |
Leaves dull green. Older leaves fall early. |
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Manganese |
Chlorosis of margins. |
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Magnesium |
Yellowing of older leaves. |
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Iron |
Leaves chlorotic. |
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E-Flowering Plants |
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1. Poinsettia |
Nitrogen |
Leaves pale green and then yellow. Plant growth short, with reddish petiole. |
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Phosphorous |
Older leaves yellow. Upper leaves darker green and lower leaves yellowish. Delayed flowering. |
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Potassium |
Lower leaves show yellowing of the margins. Veins dark green. Leaf margins later turn brown. |
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Calcium |
Leaves become dark green with a reddish tint and tend to with. Leaves get defoliated. Internodes short. |
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Magnesium |
Stunting of plants, interveinal chlorosis of lower leaves. Necrotic spots developed along the margins. |
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2. Chrysanthemum |
Nitrogen |
Leaves becoming pale green. Older leaves become yellow, then brown and die prematurely. Retarded plant growth. |
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Phosphorous |
Plants dull green. Older leaves yellow and then brownish. Purplish red pigments also develop on leaves. |
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Potassium |
Browning of leaf margins and death of lower leaves. Curling of leaf margins downward and inward. Growth rate slows, with poor root system. |
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Calcium |
Initially slight loss in color and later development of brown spots on upper leaves, enlarging rapidly, afterwards distortion. |
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Magnesium |
Leaves become pale green, and then usually interveinal yellowing. Symptoms are prominent on young leaves. Growth is ceased. |
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Copper |
Dull green leaves, yellowing of veins, spreading toward margins. |
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Zinc |
Small yellow spots on middle and upper leaves. On enlarging become brown. |
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Boron |
Pale upper leaves with short internodes. Interveinal yellowing and downward curling. |
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3. Carnation |
Nitrogen |
Older leaves turning yellow, necrosis of tips. |
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Phosphorous |
Reduced growth. Stunted plants with narrow leaves. |
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Potassium |
Yellowish necrotic spots on upper and middle leaves. Affected regions become dried and shriveled. Slender and short stem with narrow leaves. |
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Calcium |
Plants pale green, tip burn of leaves. Necrotic spots on stem and also on leaves. |
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Magnesium |
Chlorosis of middle leaves, developing upward and downward. Leaves becoming yellow with light green veins. |
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Copper |
Stem becomes thin and weak. |
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