Abstract
The stud y was carried out for three years (2002-2003 to 2004-2005) ta evaluate the wheat response ta Zn and K application under rainfed conditions. The four field experiments were conducted every year at farmer's fields in each district of Chakwal, Attock and Jhelum. Zinc was applied d 4 & 8 kg Zn ha!’ as zinc sulphate and K d 50 & 100 kg KzO ha!’ as MOP alOH8 With 120 kg N ha!’ as urea and 80 kg PzOz ha!' as DAP as basal dose at the time of sowing. A control (NP anly) was also kept for camparisan. Wheat variety Inqulab-91 was sown at all the 36 sites in last week of October every year. Average of three years results revealed a positive and significant response of wheat to Zn and K application. Application of zinc d 4 k8 Zn ha!’ enhanced the wheat grain yiefd (3022 kg ha!’) about 13 No over contral (2671 kg ha!’). While potassium A 50 kg KzO ha!’ increased the wheat grain yield (2997 k8 !*!’) about 12to over control. Further improvement in yield due to higher rates of Zn and KzO i.e. 8 and 100 kg ha! , respectively was not observed. Effect of soil texture on wheat yield was nat prominent as initiaf soil test ranges oy zn and K levels were in close proximity. Application of Zn and K holds promise for improved wheat yield when applied an soils requiring supplementation.
R. Hussain, M. Rashid’, , M. Akram’, , K. Hussain’, A. R. Jami’. (2007) Wheat response to Zn and K application under rainfed conditions, The Journal Soil & Environment , Volume 26, Issue 2.
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