The effects of irrigation and nitrogen management on yield and water productivity of rice.

Book Title: NA
Year Published: 2009
Month Published: NA
Author: Rezaei, M. ; Vahed, H. S. ; Amiri, E. ; Motamed, M. K. ; Azarpour, E.
Book Group Author: NA
Abstract:

Shortage of water in rice cultivation area of Iran is going to be a major problem in near future. In order to investigate the best Irrigation method and nitrogen application in new condition an experiment was conducted in a CRBD with 3 replications, at The Rice Research Institute of Iran during cropping season of 2006 and 2007. Four nitrogen levels (0, 45, 60 and 75 kg/ha) were splited on 3 different irrigation managements (full irrigation, 5 and 8 day interval irrigation). Results showed interval irrigation decreased water use, but increased water productivity in 5 and 8 day interval irrigation by 40% and 60% respectively in comparison to full irrigation, without any yield loss. The best nitrogen practice was 60 kg/ha, using nitrogen more than 60 kg/ha did not increase rice yield. Over all, 8 day interval irrigation with 60 kgN/ha gave the best yield and the highest water productivity.

Pages: 203 - 210
URL: http:////0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20093350565&site=ehost-live
Volume: 7
Number: 2
Journal: World Applied Sciences Journal
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 1818-4952
DOI: NA
Keywords:

application rates, crop yield, irrigation, nitrogenfertilizers, plant water relations, rice, water use, water useefficiency, Iran, Oryza, Oryza sativa, West Asia, Asia, Middle East,Developing Countries, Threshold Countries, Oryza, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, paddy,watering, Field Crops (FF005) (New March 2000), Plant Water Relations(FF062), Plant Production (FF100), Fertilizers and other Amendments(JJ700), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management]

Source: EBSCO
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