Abdelraouf R E
National Research Center, Egypt
Posters & Accepted Abstracts: Agrotechnol
Maximizing irrigation water use efficiency is a common concept used in Egypt due to limited water resources. The experiments were carried out during the two growing seasons 2014 and 2015, at the Research and Production Station, National Research Centre, El-Nubaria Province, El-Behira Governorate, Egypt to evaluate the performance of new design for drip irrigation system compared with two traditional designs to maximize water and fertilizers use efficiency under desert environment conditions. Designs of drip irrigation systems were (1) Design1: drip irrigation system (control), (2) Design2: drip irrigation system with PRD technique (partial root drying; one emitter will irrigate one part of the root system and emitters of other lateral will irrigate other half of root system) with the same direction for main lines and laterals and (3) New design: drip irrigation system with PRD technique with opposite direction for main lines and laterals. The following parameters were studied to evaluate the effect of different irrigation methods on (1) water emission uniformity, (2) soil moisture distribution (4) application efficiency (5) yield of potato (6) Water productivity of potato ??WP potato? (7) economical evaluation. Statistical analysis indicated that the maximum values of growth, yield, WP potato and total income were detected under new design of drip irrigation system with PRD technique with opposite direction for manifolds lines and laterals.
Email: abdelrouf2000@yahoo.com