Response of some wheat (Triticum aestivum L.) varieties to foliar application of N&K under rainfed conditions

Khan, M.Z. . Land Resources Research Programme; Muhammad, S. . Dept. of Soil Science and Soil Water Conservation; Naeem, M.A. . Dept. of Soil Science and Soil Water Conservation; Akhtar, E. . Land Resources Research Programme; Khalid, M. . Inst. of Soil and Environmental Science

Response of some wheat (Triticum aestivum L.) varieties to foliar application of N&K under rainfed conditions

2006

Khan, M.Z. (National Agricultural Research Centre, Islamabad (Pakistan). Land Resources Research Programme) | Muhammad, S. (University of Arid Agriculture, Rawalpindi (Pakistan). Dept. of Soil Science and Soil Water Conservation) | Naeem, M.A. (University of Arid Agriculture, Rawalpindi (Pakistan). Dept. of Soil Science and Soil Water Conservation) | Akhtar, E. (National Agricultural Research Centre, Islamabad (Pakistan). Land Resources Research Programme) | Khalid, M. (University of Agriculture, Faisalabad (Pakistan). Inst. of Soil and Environmental Science)

Experiments were conducted at different sites to evaluate the response of wheat to foliar application of N and K under rainfed conditions of Potohar region of Punjab. These studies were conducted to compare the effect of K (KNO3 and KCI) sources as foliar application at different growth stages of wheat. The treatments were (1) Control (No spray); (2) K 0.5% solution (as KNO3); (3) N & K 0.5% and 0.2 % solution (as KC+ Urea); (4) K @ 0.5% solution (as KCI); (5) N 0.2 % solution as Urea. Biological yield of wheat improved significantly with N and K application. The highest biological yield 10938 was obtained by foliar application of KCI along with nitrogen. The response of foliar potash application on Chakwal-86 wheat variety was significant among the different treatments. This study proved that both sources of potash i.e. KNO3 and KCI are equally effective in increasing wheat yield and can be helpful in achieving maximum realizable yield. Nitrogen application improved the N and K content in the leaf tissues and uptake by plant, which resulted in more production. Foliar application of potash at critical stages can be helpful in barani areas of Pakistan to realize optimum economic yield.

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