Effect of irrigation schedules and nitrification inhibitor on seed yield, water saturation deficit and water use efficiency of sunflower (Helianthus annuus L.).

Book Title: NA
Year Published: 2003
Month Published: NA
Author: Verma, A. K. ; Pandey, N. ; Tripathi, R. S.
Book Group Author: NA
Abstract:

An experiment was conducted during rabi 1996-97 in Raipur, Madhya Pradesh, India, to determine the optimum irrigation schedule and the effect of nitrification inhibitor (NIH) on sunflower cv. Modern. There were 12 treatment combinations consisting of mulching with rice straw (RSM) and irrigation at bud initiation (BI) stage (RSM+BI); RSM and irrigation at flower initiation (FI) stage (RSM+FI); RSM and irrigation at grain filling (GF) stage (RSM+GF); irrigation at BI and FI stages (BI+FI); irrigation at BI and GF stages (BI+GF); irrigation at FI and GF stages (FI+GF); irrigation at BI, FI and GF stages (BI+FI+GF); irrigation at IW/CPE ratio of 0.6 (0.6 IW/CPE); irrigation at IW/CPE of 0.8 (0.8 IW/CPE); 0.8 IW/CPE with 60 kg N/ha treated with NIH; and BI+FI+GF with 60 kg N/ha treated with NIH. A rate of 80 kg N/ha was in general applied in the treatments where urea was not treated with NIH. Application of irrigation at 0.6 IW/CPE significantly increased the seed yield and water use efficiency, and 60 kg N/ha treated with NIH performed similar to that of 80 kg N/ha without NIH treatment.

Pages: 59 - 60
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20043058477&site=ehost-live
Volume: 23
Number: 1
Journal: Agricultural Science Digest
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 0253-150X
DOI: NA
Keywords:

crop yield, irrigation scheduling, nitrification inhibitors,plant water relations, saturation deficit, sunflowers, water useefficiency, India, Madhya Pradesh, Helianthus annuus, Helianthus,Asteraceae, Asterales, dicotyledons, angiosperms, Spermatophyta, plants,eukaryotes, South Asia, Asia, Developing Countries, Commonwealth ofNations, India, Field Crops (FF005) (New March 2000), Plant WaterRelations (FF062), Plant Production (FF100), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management]

Source: EBSCO
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