Evaluation of Crop Water Stress Index (CWSI) for potato under different irrigation regimes in surface and subsurface drip irrigation systems

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Kheiri Shalamzari Kobra; SOLTANI MOHAMMADI AMIR; Boroomand Nasab Saied; Haghighati Boroujeni Bijan

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Journal: Journal of Water and Irrigation Management Year:2019 | Volume:9 | Issue:1 Page(s): 29-42

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Title

Evaluation of Crop Water Stress Index (CWSI) for potato under different irrigation regimes in surface and subsurface drip irrigation systems

Author(s)

Kheiri Shalamzari Kobra | SOLTANI MOHAMMADI AMIR | Boroomand Nasab Saied | Haghighati Boroujeni Bijan | Issue Writer Certificate

Keywords

Base lines equationsQ1

Canopy temperatureQ1

Infrared thermometerQ2

Irrigation schedulingQ1

Regulated Deficit irrigationQ1

Abstract

In order to evaluate the Crop Water Stress Index (CWSI) of potato crop, a split-plot design was carried out in a randomized complete block design in Shahrekord Agricultural and Natural Resources Research Center in the growing season of 2018. This experiment consists of two methods of irrigation (surface and subsurface drip irrigation) in the main plots and four irrigation levels (Full Irrigation, FI; Regulated Deficit irrigation, RDI-80; Regulated Deficit irrigation, RDI-65; and Partial Root-zone Drying PRD-75) in subplots, in three replications for potato (Bourren cultivar) with a period of growth of 120 days. Based on the results, the trend of changes in the CWSI of the crop in irrigation treatments for surface and subsurface drip irrigation was between 0. 16 and 0. 56 and 0. 15-0. 49, respectively. The relationship between CWSI and yield (Y) for surface and subsurface drip irrigation was Y =-122. 28 CWSI + 82. 38 and Y =-101. 61 CWSI + 70. 97, respectively. The yield of crop for treatments FI, , and in surface drip irrigation was 52. 1, 48, 31. 6, and 23. 4 Ton. ha-1, respectively and for subsurface drip irrigation 48. 6, 44. 3, 29. 6 and 21. 8 Ton. ha-1, respectively. The maximum amount of water consumed for treatment FI was 4590. 2 m3. ha-1. The results showed that in order to achieve the highest yield in subsurface drip irrigation, the potato crop should be irrigated in the range of 0. 16 to 0. 2 of the CWSI.

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APA: Copy

Kheiri Shalamzari, Kobra, SOLTANI MOHAMMADI, AMIR, Boroomand Nasab, Saied, & Haghighati Boroujeni, Bijan. (2019). Evaluation of Crop Water Stress Index (CWSI) for potato under different irrigation regimes in surface and subsurface drip irrigation systems. JOURNAL OF WATER AND IRRIGATION MANAGEMENT, 9(1 ), 29-42. SID. https://sid.ir/paper/240071/en

Vancouver: Copy

Kheiri Shalamzari Kobra, SOLTANI MOHAMMADI AMIR, Boroomand Nasab Saied, Haghighati Boroujeni Bijan. Evaluation of Crop Water Stress Index (CWSI) for potato under different irrigation regimes in surface and subsurface drip irrigation systems. JOURNAL OF WATER AND IRRIGATION MANAGEMENT[Internet]. 2019;9(1 ):29-42. Available from: https://sid.ir/paper/240071/en

IEEE: Copy

Kobra Kheiri Shalamzari, AMIR SOLTANI MOHAMMADI, Saied Boroomand Nasab, and Bijan Haghighati Boroujeni, “Evaluation of Crop Water Stress Index (CWSI) for potato under different irrigation regimes in surface and subsurface drip irrigation systems,” JOURNAL OF WATER AND IRRIGATION MANAGEMENT, vol. 9, no. 1 , pp. 29–42, 2019, [Online]. Available: https://sid.ir/paper/240071/en

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