ASSESSMENT OF EFFECT OF IRRIGATION REGIME ON WHEAT YIELD GAP IN GORGAN REGION

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TORABI B.; SOLTANI A.; GALESHI S.; ZEINALI E.

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Journal: Journal of Plant Production Research Year:2013 | Volume:20 | Issue:2 Page(s): 73-93

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Information Journal Paper

Title

ASSESSMENT OF EFFECT OF IRRIGATION REGIME ON WHEAT YIELD GAP IN GORGAN REGION

Author(s)

TORABI B. | SOLTANI A. | GALESHI S. | ZEINALI E. | Issue Writer Certificate

Keywords

WHEATQ2

YIELD GAPQ2

SIMULATIONQ3

SURVEY STUDIESQ2

Abstract

In the present study for assessing effect of irrigation regime on YIELD GAP of WHEAT farms in Gorgan region, growth and yield of WHEAT was simulated using CropSyst model under different scenarios of irrigation regime over a period of 40 years. The irrigation regimes included were B, F, A, BF, BA, FA, BFA (B, irrigation before flowering stage; F, irrigation at flowering stage; A, irrigation after flowering stage) and no irrigation (N). The results showed that the maximum and minimum yield were 4.94 and 4.05 t ha-1 obtained in BFA and N, respectively. Maximum and minimum YIELD GAP (difference between yield in BFA regime and others) over a 40-year SIMULATION span were 0 and 1.73 t ha-1 that related to BF and N, respectively. On-farm assessment in both 2007 and 2008 showed that actual yield ranged from 2.5 to 6.3 t ha-1 and BFA regime was only used in 10% of farms in 2007. However, amount of gap between yield of BFA regime and actual yields under different irrigation regimes ranged from -1.36 to 2.44 t ha-1 in 2007 and 2008. According to the results of SIMULATION, it was concluded that up to 1.73 t ha-1 of YIELD GAP on farms was related to unsuitable irrigation regime and the rest was due to other unsuitable crop management practices.

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APA: Copy

TORABI, B., SOLTANI, A., GALESHI, S., & ZEINALI, E.. (2013). ASSESSMENT OF EFFECT OF IRRIGATION REGIME ON WHEAT YIELD GAP IN GORGAN REGION. JOURNAL OF PLANT PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 20(2), 73-93. SID. https://sid.ir/paper/155704/en

Vancouver: Copy

TORABI B., SOLTANI A., GALESHI S., ZEINALI E.. ASSESSMENT OF EFFECT OF IRRIGATION REGIME ON WHEAT YIELD GAP IN GORGAN REGION. JOURNAL OF PLANT PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2013;20(2):73-93. Available from: https://sid.ir/paper/155704/en

IEEE: Copy

B. TORABI, A. SOLTANI, S. GALESHI, and E. ZEINALI, “ASSESSMENT OF EFFECT OF IRRIGATION REGIME ON WHEAT YIELD GAP IN GORGAN REGION,” JOURNAL OF PLANT PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 20, no. 2, pp. 73–93, 2013, [Online]. Available: https://sid.ir/paper/155704/en

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