Water management and irrigation scheduling of tomato by water balance [electronic resource].

Includes references.

The objective of this work was to compare three methods of irrigation scheduling of tomatoes in regard to amount of irrigation water with yield. The irrigation scheduling was managed by water balance coupled with Penman-Monteith and evaporation pan to determine the crop evapotranspiration. Tomatoes actual consumptive use of water was estimated by following the soil matric potential for specific range by tensiometers. The field experimental work was conducted during the summer season of 2003 at Saba Basha experimental farm to determine the tomatoes dual crop coefficient, applied irrigation water, yield and water utilization efficiency. Surface irrigation method was used in the experiment. A complete random blocks design with three replicates was used. Results showed that irrigation scheduling methods have a significant effect on tomato yield and irrigation applied water. Insignificant effect was found on water utilization efficiency. Tomato average yields were 24.19, 26.75 and 27.7 ton/fed. corresponding to water balance with Penman-Monteith, water balance with evaporation pan and tensiometers, respectively. The averages of applied irrigation water were 2130, 2340 and 2445 m3/fed for the same previous order.

Summary in Arabic.

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