Journal of Food, Agriculture and Environment

Applicability of micro irrigation system on cotton yield and water use efficiency

Author(s):

Rasoul Asadi ¹, Nader Kouhi ², Najme Yazdanpanah ^3*

Recieved Date: 2011-09-04, Accepted Date: 2012-01-10

Abstract:

With population growing throughout the world, it is necessary to optimize water use especially in agriculture land. In order to determine water use efficiency (WUE) of Cotton using micro irrigation system, a field experiment was conducted in the Agricultural and Natural Resource Research Institute of Orzoueyeh, Kerman province. The experiment was carried out in split plot design based on Randomized Complete Block Design (RCBD) with three replications. The treatments were comprised of three levels of crop water requirements (i.e. I₁, I₂ and I₃, that are irrigation based on 125, 100 and 75% water requirement, respectively), in main plot and two tape position as sub plot including conventional (r₁) and alternative (r₂) patterns. All treatments were assessed for productivity, water use and its efficiency, and economical issues, as well. The results showed that the yield obtained from I₁ was 379 and 1204 kg ha^-1 higher than that of I₂ and I₃, respectively. In addition, the obtained yield due to r₁ system was 377 kg ha^-1 more than the r₂ pattern. However, interaction between treatments on crop yield indicated that the I₁r₁ treatment resulted in the maximum yield. Despite of use water equality in sub plots, WUE in r₁ was 16% higher than r₂. However, economical assessment exhibited that system cost in the r₂ in comparison with the r₁ was 11% lower.

Keywords:

Micro irrigation, water use efficiency, cotton yield, Orzoueyeh

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 302-306

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