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Articles by Abdul Jabbar
Total Records ( 3 ) for Abdul Jabbar
  Muhammad Shafi Nazir , Abdul Jabbar , Abdul Quddus khalid , Shah Nawaz and Tariq Mahmood
  Investigation into the effect of different geometric arrangements on morpho-qualitative traits of a cotton cultivar NIAB-86 were carried out at the University of Agriculture, Faisalabad. The geometric arrangement comprised 60, 70, and 80 cm spaced single row and 90, 105 and 120 cm double-row strip plantation. Plant population of about five plants m–2 arranged in the pattern of 90 cm spaced double-row strips with 30 cm space between the rows of strip (30/90 cm) appeared to be optimum for getting good yield of seed cotton. The maximum seed cotton yield of 1693 kg ha–1 was obtained from the crop planted in 90 cm spaced double-row strips against the minimum of 1431 (kg ha–1) in case of 60 cm spaced single-row plantation. However, both fibre length and fibre strength were not affected significantly by the different geometric arrangements.
  M. Shafi Nazir , Abdul Jabbar , Ashiq Hussain , M. Saeed and Shah Nawaz
  The intercropping proportions comprised 100 cm spaced 4-row strips of linseed intercropped with one, two , three and four rows of methra along with sole cropping of the component crops. Intercrop was sown between the strips of linseed at the time of planting linseed. Different yield components of linseed were invariably influenced significantly by the associated methra crop in different proportions. The yield of linseed intercropped with one, two, three and four rows of methra was reduced by 6.94 6.92 8.46 and 18.36 per cent respectively. However , at the cost of this much reduction in linseed yield an additional harvest of 156, 220, 326 and 379 kg ha-1 of methra was obtained from the respective intercropping patterns which compensated more than the losses caused in the yield of linseed. The highest total grain yield of 1223 kg ha-1 was recorded for linseed + three rows of methra intercropping system against the minimum of 980 kg ha-1 in case of linseed + one row of methra intercropping pattern. By contrast, the highest net income (Rs.7665 ha-1 ) was obtained from an intercropping pattern of linseed + four rows of methra against the minimum (Rs.3683 ha-1 ) in case of sole cropping of linseed. On the whole linseed-methra intercropping in different proportions gave 17 to 38 per cent yield advantage over mono cropping of the component crops with the maximum (38 %) in linseed + three rows of methra intercropping pattern.
  M. Shafi Nazir , M. Naveed Afzal , Abdul Jabbar , Muhammad Saeed and Shah Nawaz
  Intercropping of methra between 4-, 6-, 8- and 10-row strips of wheat decreased wheat grain yield by 26.92, 22.98, 18.96 and 15.48% respectively compared to wheat alone. However, at the cost of this much reduction in wheat grain yield, additional harvests of 740, 549.5, 382 and 241.5 kg ha–1 of methra from 4-, 6-, 8- and 10-row wheat strips, respectively, were obtained which compensated more than the losses in wheat production. Among the various wheat-methra intercropping systems, the highest net income of Rs. 19463 ha 1 with benefit cost ratio of 5.10 was obtained from wheat grown in 100 cm-spaced 4 cm-row strips + 3 rows of methra, while minimum net income of Rs. 11723 ha–1 with benefit cost ratio of 3.78 from sole cropping of methra.
 
 
 
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