تلخیص
A total of 30 and 5, 29 and 8 replicated field trials were conducted, in cotton and central zones of the Punjab, respectively in the year 1997-99 to evaluate cotton response to Zn and B application. In the first study, Zn was applied @ 5 and 10 kghe alongwith NPK+B (160-80-60+1 kg ha'); while in second experiment B was applied 1 and 2 kg he alongwith NPK+Zn (160-80-60+5 kg ha''). In Cotton zone, Cotton yield increased significantly at higher level i.e. 10 Kg Zn ha-` over NPK+B. The VCR (4.0) and maximum ScNR (4.2) were obtained from the fertilizer treatment NPK +B+IOKg Zn ha'. In central zone, the cotton yield increased non-significantly with the application of Zn. In cotton zone, cotton yield increased significantly at higher level of B application i.e. 2 kg he over NPK + Zn. The VCR (3.3) and maximum ScNR (3.5) were obtained from the fertilizer treatment NPK+Zn+2 kg B he. In central zone, the cotton yield increased non-significantly due to B application. The VCR (3.0) and maximum ScNR (3.2) were obtained from the treatment 2 kg B ha"' along with NPK+Zn.
S. J. A. Sherazi, J. Iqbal, K. H. Gill, M. Ramzan, M. K. Shaheen , Z. Hameed. (2001) Cotton response to Zn and B application in cotton and central zones of the Punjab, The Journal Soil & Environment , Volume 20, Issue 3.
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