Energy, economic analysis and efficiencies of micro drip irrigation I- Energy Analysis

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Research study was carried out for two successive seasons 2012 and 2013 on seven years old (Florda prince) peach trees (Purnus perseca L. Batsch) budded on Nemagard rootstock. The experiment was conducted at the experimental farm, modern reclamation lands, situated Bader City, South Al-Tahrir, Al- Beharia Governate, Egypt. Peach trees were planted at 5 x 4 m in sandy soil, and were irrigated using four techniques of drip irrigation systems: Gr surfacr drip (SD) 4 l/h., Gr subsurface drip (SSD), surface micro drip (SMD) 0.5 l/h, and subsurface micro drip(SSMD) under three amount of applied water (60, 80, 100% of applied water will be called T1, T2 and T3). Fourty two experimental trees were selected of normal growth with uniform of vigor. Statistical design was split with three replicets. And results show that, The best irrigation water save is 20% for T2 under all of SMD and SSMD irrigation system, on the other hand, T1 under SMD irrigation system in all of first and second year is acceptance by irrigation water saving ratio 40%, the high gradation for CWUE under various water amounts, T1 water treatment is the higher value then T2 and T3 under various drip irrigation systems The mean value of EEIS higher percentage in SSMD and SMD irrigation systems than its counterpart in SSD and SD irrigation system, beside at under all of SSMD irrigation systems is increasing with water amount increasing, energy applied efficiency of for SMD and SSMD irrigation systems is higher more than SD and SSD irrigation systems, the higher value of A.I.E.I. is 0.19 (MJ/M 3 -yr.) under SD and SSD for T3 water treatment, while the smallest the higher value of A.I.E.I. is 0.13 (MJ/M 3 -yr.) Under SMD and SSMD irrigation systems for T3 water treatment. A.I.E.I is increasing with applied water increasing, whenever the applied water increase the energy production is reduced. The average energy production under SMD and SSMD irrigation systems is higher than SD and SSD irrigation systems by 18.8%,cost of unit production unit (LE/kg) for SSMD and SMD irrigation systems are lower than SSD and SD irrigation systems by (32-38,3%) at first season and (28,7-32%) at second season approximately. Energy applied efficiency for SMD and SSMD irrigation systems is higher more than SD and SSD irrigation systems, as a result of variation of energy requirements and productivity of SMD and SSMD irrigation systems, SSMD and SMD irrigation system were more economical compared with SD and SSD irrigation systems.And saving on peach yield quantity and quality characterizes.