Studies on water requirements for wheat and faba bean crops under different cropping systems.

Book Title: NA
Year Published: 2004
Month Published: NA
Author: Shawky, M. E. ; Sabrah, R. E. ; Nasr, H. M. ; Gomaa, F.A. ; Borham, T. H.
Book Group Author: NA
Abstract:

A field experiment was carried out during two growing winter seasons of 1999/2000 and 2000/2001 at the Agricultural Experimental Station, Faculty of Agriculture, Cairo University (Egypt) to study the water requirements for two sole crops, i.e., wheat and faba bean and their intercropping. In addition, the effect of different water regimes on the irrigation water requirements and the crop yield, water use efficiency (WUE), land equivalent ratio (LER) and the economical return of the intercropping system of the two field crops were also studied. The obtained results indicated that calculated values of irrigation water requirements (IRc) for sole wheat or intercropping faba bean/wheat and sole faba bean, using Blaney-Criddle equation (BC) were more with 1.95 and 1.91 times than those calculated using Penman-Monteith (PM) and Pan-evaporation (PE) equations, respectively. The actual irrigation water requirements (IRa) for intercropping faba bean/wheat recorded the highest amounts of irrigation water followed by sole wheat crop, while the faba bean crop recorded the lowest values of IRa for the two growing seasons. In general, it was noticed that the previous values (IRa) were lower than the total amounts of calculated irrigation requirements (IRc). The data indicated that the irrigation regimes had a significant influences on the grain and straw yield of wheat crop, seed yield of faba bean and grain/seed yield of intercropping crops. Also, the results indicated that the values of water use efficiency (WUE) were affected by water depletion, where they decrease with increasing the water depletion except for the sole faba bean where, the highest values of WUE was obtained at 35% water depletion. Meanwhile, the highest values of water use efficiency were obtained under intercropping system at the irrigation treatments 20% depletion from available water (ASMD). Economically, the LER indicated that intercropping resulted in greater productivity per unit of land than monocultures of the intercrop components. Data also indicated that the application of intercropping system gave the highest net returns as compared with sole wheat or sole faba bean.

Pages: 129 - 145
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20063053422&site=ehost-live
Volume: 44
Number: 1
Journal: Egyptian Journal of Soil Science
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 0302-6701
DOI: NA
Keywords:

arable soils, crop yield, cropping systems, economicanalysis, equations, faba beans, income, intercropping, irrigationrequirements, irrigation water, plant water relations, returns, seedproduction, soil fertility, soil types, soil water regimes, solecropping, water deficit, water requirements, water use efficiency,wheat, Egypt, Triticum, Triticum aestivum, Vicia faba, North Africa,Africa, Mediterranean Region, Middle East, Developing Countries,Triticum, Poaceae, Cyperales, monocotyledons, angiosperms,Spermatophyta, plants, Vicia, Fabaceae, Fabales, dicotyledons,Agricultural Economics (EE110), Field Crops (FF005) (New March 2000),Plant Water Relations (FF062), Plant Production (FF100), Plant CroppingSystems (FF150), Soil Physics (JJ300), Soil Fertility (JJ600), SoilWater Management (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management]

Source: EBSCO
Series:
Series Number:
Document Type:
Subject Category: