Irrigation scheduling and water use efficiency in maize (Zea mays L.) based cropping system under drip fertigation.

Book Title: NA
Year Published: 2009
Month Published: NA
Author: Ramah, K. ; Santhi, P. ; Ponnuswamy, K.
Book Group Author: NA
Abstract:

Field experiments were conducted at Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, from July 2006 to August 2007 to study the effect of varying irrigation regimes and fertilizer levels in maize based cropping system. The experiment was laid out in split plot design with three replications. The experiment consisted of three irrigation regimes in main plots viz., I1 - Drip irrigation at 75% WRc (computed water requirement of crop), I2 - Drip irrigation at 100% WRc, I3 - Drip irrigation at 125% WRc and four fertilizer levels in sub-plots viz., F1 - 75% RDF, F2 - 100% RDF, F3 - 125% RDF and F4 - Drip irrigation+100% RDF by soil application. Considering the cropping system as a whole, drip irrigation given at 100 and 75% WRc with 125% RDF through drip increased the yield to the tune of 60.5 and 59.7% when compared to farmer's method of surface irrigation. Due to drip irrigation at 100% WRc the water saving was observed to be 30%, utilizing this water saved from drip irrigation, we can be able to cultivate 43% additional area when compared to surface irrigation method. Similarly, from drip irrigation at 75% WRc, we can save 45% water and be able to cultivate an additional area of 82% compared to surface irrigation method.

Pages: 15 - 20
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20103038877&site=ehost-live
Volume: 38
Number: 1/3
Journal: Crop Research (Hisar)
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 0970-4884
DOI: NA
Keywords:

application rates, cropping systems, fertigation,fertilizers, irrigation scheduling, maize, trickle irrigation, waterconservation, water use, water use efficiency, India, Tamil Nadu, Zeamays, South Asia, Asia, Developing Countries, Commonwealth of Nations,India, Zea, Poaceae, Cyperales, monocotyledons, angiosperms,Spermatophyta, plants, eukaryotes, corn, fertirrigation, Madras, FieldCrops (FF005) (New March 2000), Plant Water Relations (FF062), PlantProduction (FF100), Plant Cropping Systems (FF150), Fertilizers andother Amendments (JJ700), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management]

Source: EBSCO
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