The Diagnosis of Mineral Deficiencies in Sugarbeet
1- Nitrogen Deficiency
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2- Phosphorus deficiency
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3- Calcium Deficiency
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Sugar Beet Seed Stem
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Calcium deficiency (soil acidity complex)
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a- Sugar Beet(left) and Mangold(right) Roots
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b-Sugar Beet Plant
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4- Magnesium deficiency
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Sugar Beet Leaves
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5- Potassium deficiency
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· Leaves narrow · Older leaves marginal · and intervenal scorch · They wither and collapse around plant. · Showing longitudinal lesions of petioles and midribs. · Older leaves severe marginal · intervenal browning and scorch · They shrivel and hang down limply |
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6- Iron deficiency
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· Young leaves fine chlorotic mottling · later general chlorosis. |
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7- Manganese deficiency
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· Leaves severe "Speckled Yellows" · and leaf margins curled forward |
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Manganese toxicity (Soil acidity complex)
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8- Aluminium toxicity (Soil acidity complex)
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· Growth stunted · Leaves dull green, · often with small necrotic areas near tips and margins · .Similar to phosphorus deficiency · Aluminium stops cell division during the "S Stage".
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9- Boron deficiency
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Young Sugar Beet Plant
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Sugar Beet, Old Plant
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Sugar Beet Plant
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10- Chromium (as chromate) toxicity
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· Growth stunted · younger leaves show chlorotic iron deficiency symptoms · followed by severe intervenal necrosis |
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11- Cobalt toxicity
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· Growth severely stunted · young leaves at early stage show chlorotic iron deficiency symptoms · quickly followed by severe intervenal necrosis and death |
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12- Copper toxicity
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· Growth severely stunted · young leaves show chlorotic iron deficiency symptoms · followed by severe intervenal necrosis. |
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13- Nickel toxicity
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· Growth severely stunted · young leaves at early stage show chlorotic iron deficiency symptoms · quickly followed by severe necrosis · collapse and death · older leaves develop orange pigment. |
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14- Zinc toxicity
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· Growth severely stunted · young leaves show chlorotic iron deficiency symptoms · followed by severe intervenal necrosis. |
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Combined Mineral Deficiencies
1- Combined potassium and sodium deficiencies
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2- Manganese and boron deficiency
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· Manganese deficiency shown by speckled condition of leaves ("Speckled Yellows") · and boron deficiency by "Crown rot". |
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3- Boron And Manganese Deficiency
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