Impact of clipping dates and nitrogen application on yield and yield components of two six-rowed barley at two location of Sulaimani District

Authors

  • maki mohammed ahmad iraq
  • Kamil Mahmood Mustafa Crop Science Department College of Agriculture Science University of Sulai-mani
  • Sanarya Rafiq Muhammed Crop Science Department  College of Agriculture Science  University of Sulaimani
  • Almas Galal M. Rashed Crop Science Department  College of Agriculture Science  University of Sulaimani

DOI:

https://doi.org/10.59658/jkas.v5i4.344

Keywords:

Key Words: Barley, Varieties, clipping time, N fertilizer, dual purpose

Abstract

Abstract

A field experiment was conducted under rainfed conduction of Bacrajo and Bazian locations (Iraq-Kurdustan region) during 2015-16 cropping season. The experiment consisted combinations of four cutting schedules (no clip, 80, 105, and 130 DAS), two barley varieties (Ibba-99   and Local variety) and two fertility levels (N 40 and 80 kg/ha-1). These 16 treatment combinations were evaluated under factorial randomized block design with three replications. Results revealed that application of no clip, Ibba-99 variety and N 80 kg ha-1 fertilizer as alone or in combinations significantly (P 0.05) increased almost all growth parameters, in most cases led to significant (P 0.05) increases number of spike m-2, number of grains spike-1, 1000 grain weight, HI, and gave the highest biological and grain yield at the two locations. Clipping systems, varieties and N levels as alone or in all possible combinations (two and three-way interaction) had significant (P 0.05) effects on   grain yield. The highest grain yield for C0, Ibaa-99, N 80, C0 x Ibaa-99, C0 x N 80, Local var x N 80 and C0 x Ibaa-99 x N 80 were 4.351, 2.447, 2.509, 4.884, 4.782, 2.523 and 5.127 t ha-1, respectively at Bakrajo location, while at Bazyan location for C0, Ibaa-99, N 80, C0 x Local var, C0 x N 80, Local var x N 80 and C0 x Local var x N 80 were 5.311, 3.814, 5.817, 5.551, 3.895, 3.938 and  6.216 t ha-1, respectively. The best grain yield for dual purpose barley at three-way combinations with C1 x Local var x N 80 were 4.043 and 5.770 b t ha-1 at Bakrajo and Bazyan locations, respectively. For that, application of C0 x Ibaa-99 x N 80 and C0 x Local var x N 80 combinations at at Bakrajo and Bazyan locations, respectively may be the best option to achieve high grain in quantity, while C1 x Local var x N 80 at the two locations for dual purpose barley may be the best option to achieve acceptable grain and forage in quantity under guaranteed rainfed Iraq-Kurdustan region.

Author Biographies

Kamil Mahmood Mustafa, Crop Science Department College of Agriculture Science University of Sulai-mani

Lecturer 

Sanarya Rafiq Muhammed, Crop Science Department  College of Agriculture Science  University of Sulaimani

Assistant professor

Almas Galal M. Rashed, Crop Science Department  College of Agriculture Science  University of Sulaimani

Assistant Lecturer

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Published

12/01/2018

How to Cite

ahmad, maki mohammed, Mustafa, K. M., Muhammed, S. R., & Rashed, A. G. M. (2018). Impact of clipping dates and nitrogen application on yield and yield components of two six-rowed barley at two location of Sulaimani District. Journal of Kerbala for Agricultural Sciences, 5(4), 7–23. https://doi.org/10.59658/jkas.v5i4.344