A field study was conducted at Adaptive Research Farm, Veharito investigate the efficacy of different methods of phosphorous and potassium fertilizer application on wheat grain yield in relation to agronomic efficiency in accordance with RCBD replicated thrice during 2009-10 and 2010-11.The treatments were (T1 ) control, (T2 ) Manual broadcasting of P and K fertilizer, (T3 ) Broadcasting of P and K fertilizer with spreader and (T4 ) Application of P and K fertilizer with band placement drill. Two years data revealed that roductive tillers m-2 (325 and 341), grain yield (4.42 t ha-1 and 4.43t ha- 1 ) and agronomic efficiency (9.14 and 9.06 kg grain yield/kg PK applied) were recorded maximum in plots where P and K (114-62 kg ha-1 ) was applied with band placement drill followed by productive tillers m-2 (314 and 321), grain yield (4.37 t ha-1and 4.38t ha-1 )and agronomic efficiency (8.86 and 8.77 kg grain yield/kg PK applied) from the plots where P and K were applied with spreader during 2009-10 and 2010-11, respectively. The lowest grain yield of 4.22 t ha-1and 4.23t ha-1 and agronomic efficiency (8.01 and 7.94 kg grain yield/kg PK applied) was produced where manual broadcasting of P and K was carried out. Highest net return and benefit cost ratio (BCR) (Rs. 2626 and 2.25) were obtained with band placement drill for application of P and K followed by Rs. 1415 and 1.67 where spreader was used. Significant relationship (R2= 1 and 0.999) was found between agronomic efficiency and wheat grain yield.

Author Name: Mueen-ud-Din , Liaqat Ali , Mushtaq Ali , Laila Khalid Umm-e-Kalsoom , Masood Qadir Waqarand Muhammad Anjum Ali

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Keywords: phosphorous and potassium; application methods; yield; agronomic efficiency; wheat; Pakistan.

ISSN: XXXX-XXXX

EISSN: 2393-8870

EOI/DOI:

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