Volume 6, Issue 3 (fall 2002)                   JWSS 2002, 6(3): 15-23 | Back to browse issues page


XML Persian Abstract Print


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

N. Pirmoradian, A. A. Kamgar Haghighi, A. R. Sepaskhah. Crop Coefficient and Water Requirement of Rice in Kooshkak Area, Fars Province. JWSS. 2002; 6 (3) :15-23
URL: http://jstnar.iut.ac.ir/article-1-206-en.html

Abstract:   (21444 Views)
This research was conducted in Kooshkak Farm Research Station of Shiraz University in 1997 and 1998 in order to determine crop coefficient and water requirements of rice, using lysimeter. The variety used was Champa-Kamfiroozi which is an early mature variety and is grown by most farmers in the area. Results showed that potential evapotranspiration varied from 3.76 to 9.34 mm/day. Penman FAO method was used in calculating reference evapotranspiration. Crop coefficient was 0.97 in the initial growth stage, 1.25 in the mid-season growth stage, and 1.09 at the time of harvest. Total crop evapotranspiration rates in 1996 and 1997 were 560 and 757 mm, respectively. Average deep percolation rates in the growing season was 3.4 and 3.5 mm/day in 1996 and 1997, respectively. Finally the total water requirements of rice in 1996 and 1997 were 1983 and 2361 mm, respectively.
Full-Text [PDF 260 kb]   (2440 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2008/01/9

Add your comments about this article : Your username or Email:
Write the security code in the box

© 2015 All Rights Reserved | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb

تحت نظارت وف ایرانی آسپا-وف