Submitted by kanchannainwal1 on Mon, 17/08/2009 - 11:38
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Secondary and micro nutrients in sugarcane
Deficiency Symptoms:
Calcium:
- Mottling and chlorosis of older leaves.
- Spindles often become necrotic at the leaf tip and long margins.
- Rusty appearance and premature death of older leaves.
Sulphur:
- Chlorotic young leaves.
- Narrower and shorter leaves with faint purplish tinge.
- Slender stalks.
Magnesium:
- Mottled or chlorotic appearance at the tip and margins.
- Red necrotic lesions resulting in "rusty" appearance.
- Internal browning of rind.
Fig: Magnesium Deficiency symptom
Copper:
- Green splotches with leaves eventually showing bleaching.
- Stalk and meristems lack turgidity.
- Reduced internodal length and tillering.
Iron:
- Varying degrees of chlorosis.
- Interveinal chlorosis from tip to base of leaves.
Zinc:
- The deficiency symptom can be recognized by the stunted growth and patchy appearance.
Boron:
- Distorted leaves.
- Formation of translucent lesions or water sacks along leaf margins.
- Brittle and bunched with many tillers.
- Death of apical meristem.
Molybdenum:
- Short longitudinal chlorotic streaks on the top one-third of the leaf.
- Short and slender stalks.
- Slow vegetative growth.
Manganese:
- Occurrence of interveinal chlorosis from leaf tip towards the middle of leaf.
- Bleaching of leaves under severe deficiency.
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Calcium Nitrate
Calcium deficiency is being noted in various geographies of the state and is manifesting in various crops. In certain crop deficiency of calcium along with boron can have serious implications. Tata PARAS Calcium Nitrate and Tata PARAS Granubor Natur provide water soluble Calcium and Boron to crop. These fertilizers can be easily sourced from any of the Tata Kisan Sansar spread across the state.