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Articles by Muhammad Abid
Total Records ( 4 ) for Muhammad Abid
  Muhammad Abid , Anwar-ul-Hassan , Abdul Ghafoor and M.M. Iqbal
  Deterioration of soil health and reduction in plant growth are characteristics of long-term irrigation with brackish waters. In the present investigations, we evaluated the effects of such waters on the declining rate of wheat and paddy yields and properties of the Bhalike soil series for four and a half years. Five levels, each of EC, SAR and RSC at 0.65, 2.0, 4.0, 6.0, 7.35 dS m-1; 3.95, 9.65, 18.0, 26.35 and 32.04 (mmol L-1)1/2 and 0.65, 2.0, 4.0, 6.0, 7.35 mmolc L-1, respectively, were applied to 30 x 68 cm undisturbed and disturbed soil columns taken in metallic cylinders (30 x 76 cm). Results indicate that brackish water with an ECiw of ≤ 4.0 and 4.0 dS m-1; SARiw ≤ 9.65 and 18.0; RSC ≤ 4.0 and 4.0 mmolc L-1 may be used for irrigation of wheat without yield reduction up to coded “-1.682, -1 and 0” levels of SARiw and RSC; ECiw and RSC; ECiw and SARiw, respectively, for the undisturbed and disturbed soil columns. Paddy yield decreased linearly with ECiw at given levels of SARiw and RSC. The SARiw up to 26.35 at coded “-1.682 and –1” levels of ECiw and RSC did not affect the paddy yield in both the undisturbed and disturbed soils. At higher coded “0, 1 and 1.682” levels of ECiw and RSC, the SARiw became narrow, i.e. 9.65 for paddy yield. The RSC up to 2.0 and 4.0 mmolc L-1 were observed safe for paddy yield in the undisturbed and disturbed soils, respectively. The rate of yield reduction with similar ECiw, SARiw and/or RSC was high in the undisturbed than that in the disturbed soils. Higher grain and paddy yields were predicted in the disturbed than that in the undisturbed soil columns with the same levels of ECiw, SARiw and RSC. The soil EC and SAR tended to increase with ECiw, SARiw and/or RSC, with exception to ECe which decreased with RSC waters. However, the rate of increase in ECe and SAR was high with ECiw and SARiw particularly at higher levels of SARiw and RSC; ECiw and RSC. It was observed that whole of the undisturbed and disturbed soil profile attained ECe >4.0 dS m-1 and SAR values >13.3 which are the upper limits for saline-sodic soils. The bulk density (BD) decreased by 4.9 and 4.4 %, respectively, for the undisturbed and disturbed soils with ECiw, 7.35 dS m-1 over ECiw 0.64 dS m-1 at coded “0” levels of SARiw and/or RSC of waters. The BD was 18.1, 9.3 and 14.3; 9.5 %, respectively, with SARiw 32.04 and RSC 7.35 mmolc L-1 over SARiw 3.95 and RSC 0.64 mmolc L-1for the undisturbed and disturbed soils. The increase in Ks was 0.048, 0.118, 0.172 and 0.190; 0.043, 0.109, 0.170 and 0.197 cm h-1, respectively, with ECiw 2.0, 4.0, 6.0 and 7.35 dS m-1 over ECiw 0.64 for the undisturbed and disturbed soils. At given levels of ECiw and RSC; ECiw and SARiw, the SARiw and RSC reduced the Ks of the soils. For instance, reduction in Ks was 0.003, 0.036 and 0.069 cm h-1; 0.01, 0.042 and 0.071 cm h-1 with SARiw 18.0, 26.35 and 32.04, respectively, over SARiw 3.95 at coded “0” levels of ECiw and SARiw [4.0 dS m-1 and 18.0 (mmol L-1)1/2]. At coded “0” levels of ECiw and SARiw, the RSC waters up to 2.0 mmolc L-1 increased the Ks of both the soils.
  Nazir Ahmad , Muhammad Abid , Khadim Hussain , Muhammad Akram and Muhammad Yousaf
  The study was carried out to assess the macro and micro nutrients status and their relation with pH, organic matter, clay contents and calcium carbonate (CaCO3) in the rice growing areas (Kallar track). Soil samples from 0-15 cm depth were collected from 45-50 sites located in this area. The soil samples were processed and analyzed for macro and micronutrients. Results indicated that 40% soil samples were deficient in total N, 17.77% P, 4.41% SO4, 60% Zn, 4.5% Cu and 13.33% Mn. The K, Ca+Mg, Fe and B were not deficient. About 15.15% were low in total N, 33.33 in P, 6.66% in SO42 -S and 22.22% in Zn and no one in K, Ca+Mg, Cu, Fe, Mn and B. Soil pH, organic matter, clay and CaCO3 contents were correlated with macro and DTPA (diethyletriaminepenta-acetic acid) extractable available micronutrients. Organic matter showed positive correlation with N (0.969**), whereas pHs correlated negative with Mn (-0.316*). Clay contents showed significant positive correlation with K (0.325*), Cu (0.372*) and B (0.269*). Similarly, significant positive correlation of CaCO3 was recorded with Cu (0.415*) and Mn (0.360*).
  Shahzada Munawar Mehdi , Muhammad Abid , Muhammad Sarfraz , Mudassar Hafeez and Farhan Hafeez
  A field experiment was conducted to evaluate the response of wheat crop to phosphorus fertilization in sandy loam soil. Soil samples were collected before sowing of wheat crop and analysed for physical and chemical properties of the soil. There were six treatments i.e., 0, 30, 60, 90, 120 and 150 kg P2O5 haG1 with three replications. A basal doses of N and K2O at the rate of 140 and 60 kg haG1, respectively was also applied. The whole of P, K and 2 of N was applied at the time of sowing and remaining 2 of N was applied at the time of 1st irrigation. The system of layout was Randomized Complete Block Design. The net plot size was 6H4 m. Fertilizer sources of NPK were urea, TSP and SOP, respectively. Wheat variety inqulab-91 was sown as test crop. The data of 1000-grain weight, grain and straw yield was recorded and grain and straw samples were collected and analysed for P concentration. The results showed that 1000-grain weight, grain and straw yields significantly increased with each level of P2O5 application up to 120 kg haG1 and yield at 150 kg P2O5 haG1remained at par with 120 kg P2O5 haG1. Phosphorus concentration in grain and straw and P uptake by wheat also significantly increased in all the treatments except control. Soil analysis after wheat harvest showed a built-up in Olsen-P at higher P levels.
  Muhammad Akbar Anjum , Muhammad Abid and Farrukh Naved
  As salinity level of the soil was increased (ECe 1.65-8.0 ds m -1) survival percentage, plant height and number of leaves per plant were progressively decreased and toxicity symptoms (tip burning and defoliation) became more pronounced. The performance of Cleopatra mandarin was better at all the ECe levels. Troyer citrange was the most affected rootstock while Red rough lemon, Bitter sweet orange and Volkameriana in the middle.
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