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Effect Of Deficiency And Excess Of Macro And Micro Elements On Plant Health




  • 1. NITROGEN: Poor growth of vegetative shoots, Chlorosis with yellow green leave, Poor cropa, Early ripening, Excess,Succulent growth…… Excess..Succulent growth, Prolonged vegetative phase, Delayed ripening, Leaves become susceptible to disease attack…

     

     

    1. NITROGEN:

    Def.

    i) Poor growth of vegetative shoots.

    ii) Chlorosis with yellow green leaves.

    iii) Poor cropa

    iv) Early ripening

    Excess

    i) Succulent growth

    ii) Prolonged vegetative phase

    iii) Delayed ripening

    iv) Leaves become susceptible to disease attack

    2. PHOSPHORUS:

    Def.

    i) Stunted growth of shoots

    ii) Retarded growth of roots

    iii) Leaves tend to become small, brittle and brownish green

    iv) Reduced fruiting

    Excess

    i) Mottling of leaves

    ii) Burning of leaves

    3. POTASSIUM:

    Def.

    i) Reduce production of sugar

    ii) Small leaves

    iii) Premature death of plants/leaves

    iv) Stunted plants

    Excess:

    i) Turning of leaves darker

    ii) Decay and necrosis of tissues

    4. CALCIUM:

    Def.

    i) Chlorosis of leaves

    ii) Death of leaf tips and rolling of leaves

    Excess

    i) Causes the soil and become alkaline

    5. MAGNESIUM:

    Def.

    i) Chlorosis of leaves

    ii) Premature leaf fall

    Excess

    i) Burning of leaves

    6. SULPHUR:

    Def.

    i) Yellowing of leaves

    ii) Reduced flowering

    iii) Poor root system

    Excess

    i) Mottling of leaves

    ii) Bronzing of leaves

    7. ZINC

    Def.

    i) Mottling and necrosis

    ii) Drying of growing tips

    iii) Curling of leaves

    Excess

    i) Less root development

    8. BORON

    Def.

    i) Splitting of bark

    ii) Exudation of gum

    Excess

    i) Yellowing of leaves of tips and margins

    9. COPPER

    Def.

    i) Breakdown of older leaves

    Excess

    i) Stimulation of gum exudation

    10. MANGANESE:

    Def.

    i) Chlorosis of leaves

    Excess

    i) Mottling of leaves

    ii) Burning of leaves

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