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Articles by A. Tanveer
Total Records ( 10 ) for A. Tanveer
  M. Ayub , A. Tanveer , M. A. Nadeem and M. Tayyub
  A field was conducted at Faisalabad, Pakistan during 2001, to study the effect of 80, 100 and 120 kg seed rate ha-1 on sorghum (Sorghum bicolor L.) cultivar ‘Hegari’ grown on soil prepared by different tillage methods i.e. deep tillage (one ploughing with disc plough+two ploughing with cultivator+one planking), conventional tillage (two ploughings with cultivator+two planking) and zero tillage. The increase in seed rate significantly increased the green fodder (18-35%) and dry matter yields (21-40%) and yield components like plant density, plant height and number of leaves plant-1 but decreased the stem diameter (0.9-8%). The quality parameters like ash, crude fibre and crude protein contents were decreased and dry matter percent increased with increased seed rate. The deep tillage owing to more number of leaves plant-1 (11.21), plant density (47.30 m-2), plant height (193.13 cm) resulted in significantly greater dry matter (5.66 t ha-1) and green fodder yields (31.59 t ha-1) than zero tillage. The seed rate of 120 kg ha-1, sown on soil prepared by deep tillage proved to be the best combination for getting higher green fodder yield (35.15 t ha-1) of sorghum (Sorghum bicolor L.) cultivar ‘Hegari’ under Faisalabad conditions.
  M. Ayub , R. Ahmad , A. Tanveer , J. Iqbal and M.S. Sharar
  Seed yield in green gram was increased progressively with phosphorus application up to 75 kg P2O5 ha–1. The application of P2O5 more than 75 kg ha–1 depressed the yield and yield components. Maximum increase in seed yield, recorded at 75 kg P2O5 ha–1 was about 92% of control. Higher seed yield with phosphorus application was related to the higher number of pod bearing branches, number of pods per plant, number of seeds per pod and 1000-grain weight. Protein contents were also influenced significantly by phosphorus application, being maximum (27.01%) at phosphorus level of 75 kg ha–1. Phosphorus application of 75 kg ha–1 seems to be the optimum level for harvesting higher yield in green gram.
  M. Ayub , R. Mahmood , A. Tanveer and M.S. Sharar
  Two varieties of maize viz., Neelum and Akbar were compared at seed rates of 75, 100, 125 and 150 kg ha–1 in Faisalabad conditions. Varieties showed non-significant differences for all parameters studied except dry matter yield. Cultivar Akbar gave significantly more DM yield (7.18 t ha–1) than Neelum (6.09 t ha–1). Seeding densities showed significant effects growth and yield parameters. Plant height, green fodder yield, dry matter yield and crude fibre percentage was increasing with increasing seed density, whereas, the increase in crude fibre percentage could not reach to a significant level. While stem diameter, leaf area plant–1, crude protein percentage, total ash percentage and ether extractable fat percentage decreased significantly with increased seed rate. The cultivar Akbar and seed rate of 150 kg ha–1 seems to be the best for producing higher fodder yield of maize in Faisalabad conditions.
  M. Ayub , I. A.P. Dewi and A. Tanveer
  A pot experiment was conducted to study forage yield and quality of barley when harvested at different times (88, 106, 129, 143, 154 and 178 days after sowing) and grown under three nitrogen (0, 50, 100 kg ha–1). Fresh, dry matter and crude protein yields and quality parameters i.e. crude protein percent and modified acid detergent fibre percent were influenced significantly by nitrogen rates and harvest times. Whereas, dry matter percent was only influenced significantly by harvest times. The interaction between harvest times and nitrogen level were also significant for all parameters except for crude protein yield and plant height. Crude protein (CP) percent in whole barley plant decreased with time and remained constant near maturity. Modified acid detergent fibre percent increased with harvest date and reached a maximum at the fourth harvest and then decreased significantly by the fifth harvest. Maximum dry matter (727.7 g) and fresh yields (2184.4 g) were observed at fifth and fourth harvest respectively. The barley fertilized at 100 kg ha–1 and harvested 154 days after sowing seems to be optimum combination for getting higher dry matter yield.
  M. Ayub , A. Tanveer , Z. Iqbal , M.S. Sharar and M. Azam
  Response of two sunflower cultivars namely Aritar-93 and suncom-110 to N levels of 0, 50, 100 and 150 kg ha–1 was studied under field conditions. Sunflower cultivar suncom-110 produced significantly higher plant height, leaf area per plant, 1000-achene weight and achene yield. Plant height, leaf per plant, stem diameter, no. of achenes per disc and achene protein contents were maximum at N level of 150 kg ha–1. Whereas, oil contents were significantly higher in control. Nitrogen application at 100 and 150 kg ha–1 gave statistically similar achene yields of 15.95 and 16.18 q ha–1 respectively. Application of nitrogen more than 100 kg ha–1 seems to be uneconomical.
  M. Ayub , R. Ahmad , A. Tanveer and I. Ahmad
  Response of maize (Zea mays L.) cultivars viz., Sadaf, Sultan, Sarhad White and Golden to two sowing methods, i.e., broadcast and line sowing was studied under field conditions. Significant differences were observed amongst the cultivars for plant height, leaf area per plant, stem diameter, fresh fodder yield and ether extractable fat percentage. Cultivar ‘Sultan’ proved superior to all other cultivars with respect to higher fodder yield of better quality. Plant population was significantly higher under line sowing where as fodder yield and all other yield parameters studied were not significantly affected by sowing methods.
  M. Ayub , R. Ahmad , A. Tanveer , Hafiz Z. Ahmad and M.S. Sharar
  Response of three sugarcane cultivars namely BL-4, SPSG-26 and SPSG-394 to NPK levels of 0-0-0, 200-0-0, 200-150-150 and 200-200-200 kg was studied under field conditions. Variety SPSG-394 gave the highest cane yield of 107.67 tons ha–1 compared to 88.85 and 58.53 tons ha–1 for the varieties BL-4 and SPSG-26, respectively. An increase of 16.27 and 26.13 tons ha–1 over control was recorded with the application of 200 kg N ha–1 alone and 200-150-150 kg NPK ha–1, respectively, Sucrose contents and commercial cane sugar were not affected significantly by fertilizer application. However, variety SPSG-26 gave significantly higher sucrose contents (18.82%) and commercial cane sugar (12.89%) than SPSG-394 and BL-4. The fertilizer application at 200-150-150 kg NPK ha–1 was found to be optimum level for achieving maximum cane yield.
  A. Tanveer , M. Ayub , A. Ali , R. Ahmad and M. Ayub
  A field experiment comprising two row spacing viz. 60 and 75 cm and five durations of weed-crop competition i.e. competition for 20, 30, 40, 50 days after emergence and till harvest was conducted to observe growth and yield response of maize. There was gradual increase in dry weight of weeds with increased weed-crop competition duration. Decrease in number of grains per cob and 1000-grain was recorded with increased competition duration of weeds. Maize grain yield was increased from 1911.61 kg ha–1 in plots where weeds competed with crop till harvest to 3708.33 kg ha–1 in plots where weeds were allowed to compete for 20 days after emergence.
  M. Ayub , A. Tanveer , M. Adil Choudhry , M.M.Z. Amin and G. Murtaza
  Response of two mungbean cultivars namely NM-54 and NM-92 to nitrogen levels of 0, 20, 40 and 60 kg ha–1 was studied under field conditions. The cultivar NM-92 gave significantly higher seed yield than cultivar NM-54 due to higher number of pod bearing branches plant-–1, number of pods plant–1 and number of seeds pod–1. Yield and yield components were also influenced significantly by nitrogen levels. The application of nitrogen at the rate of 60 kg ha–1 significantly depressed the seed yield and yield components except number of pods plant which were statistically similar with nitrogen application of 40 kg ha–1. Maximum increase in seed yield, recorded at 40 kg N ha–1, was about 31 percent higher of control. The increase in seed yield with nitrogen application was related to higher number of pods plant–1, number of seeds pod–1 and 1000-grain weight. Protein contents were also influenced significantly by nitrogen application, being maximum (26.18%) at nitrogen level of 40 kg ha–1. Nitrogen application at the rate of 40 kg ha seems to be the optimum level for harvesting higher yield of mungbean.
  Asghar Ali , M. Asghar Malik , M. Adil Choudhry , A. Tanveer and M. Khalid
  The results revealed that maximum grain yield (5.56 t ha–1) was obtained with the application of standard recommended dose of chemical fertilizer. However, it was followed by the treatment where 1000 kg ha –1 of EM-Biokasht was applied at sowing. It can thus be concluded that although use of EM-Biokasht did not produce comparable results with that of NPK application, but keeping in view the high cost of NPK fertilization, the use of EM-Biokasht at the rate of 1000 kg ha–1 can be recommended for obtaining a reasonable wheat yield with the addative benefit of producing priced wheat under natural farming system.
 
 
 
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