Studies on water requirements for wheat and faba bean crops under different cropping systems [electronic resource].

Includes references.

A field experiment was carried out during two growing winter seasons of 1999/2000 and 2000/200 I at the Agricultural Experimental Station, Faculty of Agriculture, Cairo University to study: a) the water requirements for two sole crops, i.e, wheat and fababean and their intercropping, b) the effect of different water regimes on the irrigation water requirements and c) the crop yield, water use efficiency (WUE), land equivalent ratio (LER) and the economical return of the intercropping system of these field crops The obtained results indicated that calculated values of irrigation water requirements (IRc) for sale wheat or intercropping fababean/wheat and sale fababean, using Blaney-Criddle equation (BC) were more with 1.95 and 1.91 times than those calculated using Penman-evaporation (PM) and Pan-evaporation (PE) equations, respectively. The actual irrigation water requirements (IRa) for intercropping fababean/wheat recorded the highest amounts of irrigation water followed by sole wheat crop, while the fababean crop recorded the lowest values of IRa for the two growing seasons. In general, it is noticed that the previous values (IRa) were lower than the total amounts of calculated irrigation requirements (IRc).

Summary in Arabic.

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