Cement, Energy & Environment

( .. \ Results and discussions: Physico-chemical Analysis The productivity of soil in zone A has not been affected because of the Cl which can be concluded by comparative ana lysis of physical and chemical parameters of soil samples of zone A and zone B. Values of all the parameters as given in Table 1 are almost equal as compare to zone A and B except phosphorous. The average phosphorous in the form of P205 is more in the soil samples of zone A as compare to zone B which may be because of the cement dust as phosphorous is one of the constituent of it (Asubiojo 1991 ). In both zones estimated micronutrients (copper, ferrous, manganese and zinc) are in abundance which is also an indication that the fertility of soil in terms of micronutrients has not been affected . Morphological Analysis: In this study, morphological parameters the shoot length, root length and leaf area were examined in green gram, cotton and soybean. In all three crops these parameters were slightly reduced than the optimum sizes in samples of A zone than in B (Table 2). This decrease is not considerable as the plants were looking healthy and can be justified by looking at un-optimized doses of fertilizers and variable cultiva tion practices followed by the farmers. In Soybean the shoot length of the plants was more in region A while the root length was less in region B. which might be due to alkaline pH of the soil, unregulated use of fertilizers and pesticides for increasing the productivity. Table-1: Physicochemical analysis of soil samples collected from zone A and B Sr. Parameter Zone A Zone 8 No. Sample A1 A2 A3 A4 AS Average 81 82 83 84 85 Average code Physical 01 pH 7.6 7.9 8.0 7.8 7.9 7.84 8.0 7.0 7.0 7.9 8.0 7.58 02 Electrical 0.8 0.9 1.0 0.5 0.9 0.82 1.0 1.0 1.1 1.0 0.5 0.92 conductivity (mMho) 03 Water 61 .6 58.6 49.3 56.3 59.4 57.04 47.0 46.4 63.0 55.7 62.6 54.94 Holding Capacity(%) Chemical 04 Nitrogen 147 132 163 191 163 159.2 150.53 179 147 160 119 151 .11 (kg/ha) 05 Available 12 41 94 28 57 46.4 32 20 4.1 61 20 27.42 P20 s(kg/ha) 06 Available 436 465 323 370 405 399.8 556 414 325 457 452 440.80 K20 (kg/ha) 07 Organic 0.25 0.28 0.09 0. 19 0.04 0.17 0.16 0.1 0.2 0.07 0.18 0.14 Carbon(%) 08 Available 100 130 138 129 127 124.8 100 99.6 113.7 120 139.44 114.55 Calcium (meq%) 09 Available 108 87.6 118 110 114 107.5 138 120.12 99.76 122 136.41 123.26 Magnesium (meq%) 10 Sodium 1.2 2.2 1.1 1.0 0.8 1.26 4.0 1.0 2.3 0.6 1.2 1.82 (mg%) 11 Free Lime 4.0 0.87 2.75 1.0 8.4 3.4 7.5 1.5 6.25 2.12 2.12 3.90 (%) Micronutrients 12 Copper (Cu) 3.0 2.0 2.0 2.0 2.0 2.2 2.0 5.99 2.0 2.0 3.0 3.0 (ppm) 13 Ferrous (Fe) 8.0 7.6 5.5 13.0 7.0 8.22 11.0 20.4 13.0 8.1 24.0 15.3 (ppm) 14 Manganese 20.0 19.0 15.0 20.0 22.0 19.2 77.33 118.81 32.0 14.0 18.8 52.19 (Mn) (ppm) 15 Zinc (Zn) 0.7 0.4 0.5 0.5 0.5 0.52 0.4 0.6 O.b 0.6 0.6 0.54 (ppm) 3