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Articles by Abdul Aziz Khakwani
Total Records ( 3 ) for Abdul Aziz Khakwani
  Ghazanfar Ullah , Ejaz Ahmed Khan , Inayat Ullah Awan , Muhammed Ayyaz Khan , Abdul Aziz Khakwani , Muhammed Safdar Baloch , Qudrat Ullah Khan , Muhammad Saleem Jilani , Kashif Wasim , Sadaf Javeria and Ghulam Jilani
  Fertilizer use efficiency of nitrogen is very low due to various types of losses. This two year field experiment was carried out to investigate the effect of various levels of nitrogen and its application methods on phenology, growth indices and quality of wheat. Fertilizer application methods (broadcast and side-dressing) were placed in the main plots, while nitrogen levels (60, 90, 120, 150, 180 and 210 kg/ha) applied in sub plots. Crop data showed that nitrogen methods had non-significant effect on phenology, physiology and quality parameters. Fertilizer application rates rendered significant effect on various parameters except days to emergence. Nitrogen at 210 kg/ha gave significant increase in the phenological and growth parameters. Leaf area index and leaf area duration were significantly affected by the rate of nitrogen fertilizers. Protein contents were also increased by the application of higher amount of nitrogen. Interaction among application methods and nitrogen levels showed significant variations in net assimilation rate, while crop growth rate remained significant in the second year and protein content had shown significant variation during the first year of study.
  Ghazanfar Ullah , Ejaz Ahmed Khan , Inayat Ullah Awan , Muhammed Ayyaz Khan , Abdul Aziz Khakwani , Muhammed Safdar Baloch , Qudrat Ullah Khan , Muhammad Saleem Jilani , Kashif Wasim , Ghulam Jilani and Muhammad Mohib Ullah
  Field experiment was conducted to evaluate difference among various levels of Nitrogen (N) fertilizer, its application techniques and their interaction on the growth, yield components and yield of wheat. Treatments of N fertilizer application techniques, viz., broadcast and side-dressing were allocated to main-plots and nitrogen levels, viz., 60, 90, 120, 150, 180 and 210 kg N/ha were placed in sub-plots. This experiment was repeated for two years with the same treatments. Results revealed that nitrogen application techniques had non-significant impact on most of the crop parameters except count of fertile tillers. Various rates of nitrogen showed significant influence on all the parameters under study and showed significantly higher grain yield of wheat with successive increase of dose up to 180 kg N/ha. Maximum plant height and biological yield were obtained under the highest nitrogen level, viz., 210 kg N/ha. However, the highest count of fertile tillers, spike length, number of grains, 1000-grain weight and harvest index were recorded in the treatment receiving 180 kg N/ha. Interactions between fertilizer application techniques and nitrogen levels were non-significant for all the crop parameters studied in this experiment on wheat.
  Ghazanfar Ullah Sadozai , Muhammad Farhad , Muhammad Ayyaz Khan , Ejaz Ahmad Khan , Muhammad Niamatullah , Muhammad Safdar Baloch , Abdul Aziz Khakwani and Kashif Wasim
  The experiment was conducted to study the effect of various phosphorous levels on the yield and yield components of sunflower variety “Hysun-33” at the Agronomic Research Area, Faculty of Agriculture, Gomal University, Dera Ismail Khan during the year 2010. The phosphorous levels studied were 0 (N :P2O5: K2O), 0 (P2O5), 10, 20, 30, 40, 50, 60 P2O5 Kg/ha. The results showed significant effect of P2O5 @ 50 kg/ha and 60 kg/ha as compare to lower doses of phosphorous. All varying levels of phosphorous affected the head diameter, number of seeds per head, 1000-seeds weight, achene’s yield and achene’s oil content but significant positive effect was observed where P2O5 @ 60 kg/ha N @ 50 kg/ha and K2O 15 kg/ha was applied. However, number of plants, remained non-significant. It is, therefore, recommended to apply phosphorous @ 60 kg/ha for obtaining higher yield of sunflower.
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