IMPACT OF SOME LOCALIZED IRRIGATION SYSTEMS ON LEMON FRUIT YIELD

Document Type : Original Article

Author

Assist. Professor. Ag. Eng. Dept., Fac. of Ag., Ain Shams U., Cairo, Egypt.

Abstract

The experimental field was located at Badr City, EL-Beheira Governorate, Egypt. At 30°40'49.8"N 30°33'27.3"E. It was conducted from October 2021 to March 2022. The experiment was designed using a micro sprinkler irrigation system 62 L/h, 1.25 mm. Drip irrigation system (In-line drip hoses 8 L/h, circle with flow rate 115 L/h) and pressure compensating full circle bubbler irrigation system, 110 L/h at (100 % - 80 %) water requirement. The area of experiment plots was (6×6) m², and each treatment was repeated three times. These treatments aimed to study some of the quality characteristics of Limon crop in El-Beheira Governorate using different pressurized irrigation systems used in the outlets and cultivated plants. Results indicated that at the end of the experiments flow rates for emitters (micro sprinkler, drip line, bubbler) was (42.74, 6.75 and 104.79) L/h, respectively. The values of the emission uniformity were (95.7, 93.98 and 97.53) %, respectively. The accumulative clogging ratios were ranged between (3.5, 0.8, and 0.42) %. respectively, and (33.38, 16.4, 6.92) %. respectively. The crop productivity was (10.556, 9.976, 10.208, 9.512, 11.368, 11.020, 8.352, 8.004) ton/fed/year for the variables used in the experiment ((micro sprinkler- 100% water requirement- 15cm, 30cm of the high riser), (micro sprinkler- 80% water requirement- 15cm, 30 cm of the high riser, (drip system- 100 % ,80 % water requirement), (bubbler- 100 %, 80 % water requirement)), respectively. Total structural cost/fed. were (28560, 25550, 25774) L.E. for micro sprinkler, drip and  bubbler irrigation systems, respectively.

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References

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