Volume 23, Issue 3 (Fall 2019)                   jwss 2019, 23(3): 37-52 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ghamarnia H, jalili Z, Kahrizy D. Estimated Water Requirements and Stevia Rebaudiana Bertoni Crop Coefficient in Semi-Dry Climate under Lysimetric Conditions. jwss 2019; 23 (3) :37-52
URL: http://jstnar.iut.ac.ir/article-1-3669-en.html
1. Department of Water Engineering, Compass of Agriculture and Natural Resources, Razi University, Kermanshah, Iran. , hghamarnia@razi.ac.ir
Abstract:   (4171 Views)
Exactly estimating of water requirement is essential for water balance studies, design and management of irrigation systems and water resources management. Because of limited soil and water resources in Iran, for optimal use of water resources in the agricultural sector, it is necessary to determine the amount of water requirement by different plants in different climatological conditions. In order to determine the water requirement and crop coefficients of Stevia, six lysimeter numbers were used in three replications for stevia and reference plant (grass). The reference Stevia plant evapotranspiration was measured on a daily basis. The results showed that during the 537 day period of Stevia cultivation, the maximum and minimum water requirement in the first and second year of cultivation was respectively 9.85 and 1.69 mm per day, and for the reference plant was obtained as 6.54 and 1.84 mm per day. In this study, the Kc coefficients in initial, development, intermediate and final stages of growth in 2016 were 0.76, 1.11, 1.46 and 1.05 and in 2017 at growth stages, were 0.76, 1.18, 1.52 and 1.29 respectively. The average of individual Stevia plant growth factors for four growth stages in two years of research was obtained as 0.76, 1.15, 1.49, and 1.17, respectively.
Full-Text [PDF 890 kb]   (1129 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2018/02/14 | Accepted: 2018/10/6 | Published: 2019/12/23

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2023 CC BY-NC 4.0 | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb