Soil of Colocacia esculenta Linn was collected from the area of Musakhel Swat District and investigated for pH, micronutrients and macronutrients. pH was found in the range of 6.7 to 7.5 which is slightly acidic to neutral. Sodium, potassium and calcium were found in the range of 9.104-16.461 my L, 7.443-19.107 my L and 9.318-20.206 my L respectively. When the calcium contents'are low in the plant body then it could cause the rapid disintegration and distiguring of growing tips of roots and shoots. The low level of calcium in the soil causes reduction in the translocation of carbohydrates, chlorosis, toxicity of meristematic tissues, expansion of cell, and decolourisaticm of roots. Magnesium was in the range of 12.216 to 16.133 my L. At low quantity, magnesium could cause chlorosis and appearance of patches on the leaves and subsequently plant death. Iron was found in the range of 6.037 to 13.315 my L. Copper was found from 1.789 to 4.268 my L. The functions of copper in plants include catalysis for respiration, enzyme constitution, chlorophyll synthesis, and carbohydrate and protein metabolism. Zinc and cadmium were found in the range of 5.07 to 6.677 my L and 1.428 to 4.316 my L respectively, which is lower than the desirable level for a fertile soil. Therefore it may cause diseases like necrosis, wilting, red orange coloration of leaves and general reduction in growth. The tap root of_CoIacacia esculenta Linn, collected from Musakhel Swat District, was investigated for micronutrients and macronutrients. Sodium, calcium, magnesium, copper, zinc, cadmium, aluminium and iron were found in the range of 5.223 to 18.42 my L, 18.123 to 22.43 my L, 6.124 to 12.22 my L, 3.041 to 6.342 my L, 2.1 to 8.6 my L, 0.120 to 0.432 my L, 0.5421 to 3.512 my L and 5.123 to 15.33 my L, respectively.
I AHMAD ,M S WAHEED ,F K BANGASH ,A ALI ,S ALAM ,