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State % Tamil Nadu % District % Thiruvallur
Soil Type % Laterite Soils % Cropping : 1. Rice-rice
System 2. Rice-groundnut

Status of Available Sulphur and Micronutrients (% Area)

Taluka Acute Deficient Latent Marginally Adequate High
Deficient Deficient Sufficient
Sulphur
Ambattur - 57.7 34.9 7.4 - -
Gummi - 0.2 3.3 17.9 47.2 31.3
Mathavaram - 12.4 23.7 37.2 26.7 -
Pallipattu - 42.6 38.1 15.9 3.4 -
Ponneri - 9.8 34.0 29.3 20.8 6.2
Poonamallee - 44.4 55.1 0.5 - -
Thiruvallur 0.7 20.5 73.2 5.6 - -
Tiruttani - .2 47.8 15.8 10.3 16.9
Uthukkottai - 8.4 80.8 9.7 0.8 0.4
Zinc
Ambattur - - 3.1 36.0 57.7 3.3
Gummi - - 19.2 36.7 38.7 5.4
Mathavaram - - - 23.7 76.2 -
Pallipattu - - 5.7 15.9 65.6 12.8
Ponneri - - 17.1 50.0 32.7 0.2
Poonamallee - - 0.1 29.0 64.1 6.8
Thiruvallur - - 15.6 30.3 52.0 2.0
Tiruttani - - 10.4 14.4 67.0 8.2
Uthukkottai - - 1.4 10.5 81.5 6.6
Iron
Ambattur - - - - - 100
Gummi - - - 0.1 1.3 98.6
Mathavaram - - - - - 100
Pallipattu - - - 0.7 10.7 88.6
Ponneri - - - - - 100
Poonamallee - - - - - 100
Thiruvallur - - - 1.0 11.6 87.4
Tiruttani - - - - 0.4 99.6
Uthukkottai - - - 0.4 7.3 92.3
Copper
Ambattur - - - - 20.6 79.3
Gummi - - 2.5 11.6 37.1 48.8
Mathavaram - - - - - 100
Pallipattu - - - - 1.8 98.2
Ponneri - - 0.3 1.3 2.2 96.2
Poonamallee - - - - 16.1 83.9
Thiruvallur - - - - - 100
Tiruttani - - - - 13.7 86.3
Uthukkottai - - - - 0.3 99.7
Manganese
Ambattur - - - - - 100
Gummi - - - 2.2 3.5 94.2
Mathavaram - - - - - 100