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Articles by G.Hassan
Total Records ( 3 ) for G.Hassan
  S.M. Mehdi , A.M.Ranjha , M.Sarfraz and G.Hassan
  The number of productive tillers plant-1, grain and straw yields in wheat were increased significantly by increasing K application except grain yield in the Wazirabad and the Sultanpur soil series and straw in the Kotli series which remained non-significant. K concentration in grain was improved by 100 mg K kg -1 except in the Sultanpur and Shahdara series where it increased upto 75 mg K kg-1. While in straw it was increased upto 75 mg K kg -1 rate except the kotli series where it improved upto 50 mg K kg -1. Potassium uptake by wheat crop was increased upto 50 mg K kg -1 except in the Pindorian and the Lyallpur soil series where it increased upto 75 mg K kg -1.
  K.H. Awan , A.M. Ranjha , S.M. Mehdi , M. Sarfraz and G.Hassan
  The present study was carried out to observe the effect of applying N, P and K fertilizers at different rates and combinations on growth and yield of rice line PB-95. The fertilizer treatments comprised the T1 (control), T2 (0-75-75), T3 (60-75-75), T4(120-75-75), T5 (180-75-75), T6 (120-0-75), T7 (120-500-75), T8 (120-100-75), T9 (120-75-0), T10 ((120-75-50) and T11 (120-75-100) NPK kg ha-1. The results showed that application of NPK significantly increased the crop yield and maximum paddy and straw yield were obtained from plot fertilized @ 120-100-75 NPK kg ha-1. Harvest Index was highest at control, N physiological efficiency index and N fertilizer efficiency decreased with increasing N levels. Similarly, P physiological efficiency index decreased while P fertilizer efficiency increased with increasing P levels.
  S.M. Mehdi , M. Sarfraz , G.Hassan , A.B. Sufi and M.N. Bhutta
  An Investigation was carried out to note the survival and growth rate of eucalyptus saplings planted in salt affected and hypoxia areas with plastic container bags totally removed compared to base only removed. The soil used was highly saline sodic in nature with wide variation in electrical conductivity of the saturation extract (ECe), pHs and sodium adsorption rate (SAR) within the field. At Basti Thabal, Pindi Bhattian site half acre of eucalyptus was transplanted with bigger bags, half acre with original smaller bags and three and half kanals of eucalyptus were transplanted at Jalalpur Kangra. Survival rate data was collected fifteen days after transplanting of tree seedlings. While height and girth data was recorded within 15-25 days after transplantation. The results showed that survival rate of eucalyptus was more than 82% at Jalalpur Kangra while survival rate was more in smaller bags than bigger bags at Pindi Bhattian site. The treatment effect remained nonsignificant. The gain in height was more than 84 cm in case of bigger bags at Pindi Bhattian, more than 73 cm at Jalalpur Kangra and more than 47 cm incase of smaller bags at Pindi Bhattian site. However treatment effect remained nonsignificant at all the sites. The gain in girth was more than 1.20 cm at Jalalpur Kangra, 0.90 cm in case of bigger bags while more than 0.34 cm in case of smaller bags at Pindi Bhattian site. The treatment effect was again nonsignificant at all the sites. In case of root proliferation, tap root length was more at Jalalpur Kangra and Pindi Bhattian (bigger bags) while lateral root length was more in case of smaller bags at Pindi Bhattian site and treatment was observed nonsignificant. There was a slight improvement in ECe, pHs and SAR of soil in the plough layer only indicating that salts were leached down only at Jalalpur Kangra. While at Pindi Bhattian site the ECe, pHs and SAR were increased due to the eroded soil by rain that brought salt to this low lying area. The results lead to conclude that eucalyptus plantation in salt affected soils has some ameliorative effects on soil chemical characteristics.
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