Water and economic productivity using different planting and irrigation methods under dry and wet seasons for wheat

ABSTRACT

This study aims to evaluate the water and economic productivity of wheat using different planting and irrigation methods under dry and wet seasons. They were carried out in randomized blocks according to the split-plot design with three replications for two growing seasons. The main plots were P₁: Conventional flat planting (CFP), P₂: Raised-bed planting (RBP); sub-plots were; I₀: Rainfed conditions (RFC), I₁: Surface irrigation (SI); basin irrigation (BI) and/or furrow irrigation (FI) and I₂: drip irrigation (DI). The highest grain yield (4.61 t ha⁻¹) was in the CFP and BI. Irrigation water productivity (IWP) in the CFP and RBP were 1.31 and 1.60 kg m⁻³, respectively. DI resulted in 1.82 kg m⁻³ compared to the SI (1.09 kg m⁻³). The highest net income, 828 $ ha⁻¹, was in the CFP and BI and the second (749 $ ha⁻¹) was in the RBP and FI. Water economic productivity (WEP) was 0.171 $ m⁻³ in the CFP compared to 0.151 $ m⁻³ in the RBP. The SI resulted in more WEP (0.164 $ m⁻³) than DI (0.159 $ m⁻³). Thus DI and RBP were not feasible in the study region. All data evaluated were much higher in the wet season.

KEYWORDS:

• Conventional flat planting
• drip irrigation
• durum wheat
• raised-bed planting
• surface irrigation

Acknowledgements

These study results are produced from the ‘Project Final Report’ of Grant number: ZİRAAT.17.024 supported by Dicle University, Scientific Research Projects Coordination (DÜBAP). They authors thank DÜBAP for the financial support. In addition, some parts of ‘Material and Methods’ in this paper are similar to other article (s) produced from the same Project Final Report.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by Dicle University, [Grant number: ZIRAAT.17.024].