Tropical Agriculture and Development
Online ISSN : 1882-8469
Print ISSN : 1882-8450
ISSN-L : 1882-8450
Original Article
Evaluation of Intercropping System of Wheat and Egyptian Clover in the Nile Delta of Egypt
Aki KUBOTASayed Ahmed SAFINASaad Mohamed SHEBLAlaa El-Din Hassan MOHAMEDNaoto ISHIKAWAKatsuyoshi SHIMIZUKorany Abdel-GAWADSachio MARUYAMA
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2016 年 60 巻 4 号 p. 275-282

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Using limited water resources efficiently and increasing crop production for population growth are critical issues in Egypt. A field experiment was conducted to evaluate wheat-Egyptian clover intercropping system with the purpose of maximizing the land use and minimizing evaporation from soil surface in the Egyptian Nile Delta. An additional treatment was cutting at 15 cm from the land level at 69 days after sowing to provide animal feeds in winter. Leaf area index (LAI) and ratio vegetation index (RVI) of the canopies, SPAD values of leaves, biological yields, grain yield, land equivalent ratio (LER), and water use efficiency (WUE) were measured. LAI and RVI of monocultured wheat were improved by intercropping with Egyptian clover, which can contribute to reduction in water evaporation from the soil surface. Wheat grain yield was not affected by intercropping but significantly reduced by cutting during the vegetative stage. Egyptian clover production was notably reduced by both intercropping and cutting treatment. WUE based on the yield was 63% higher for intercrops than that for wheat monocrop. The total LER of intercropping system was 1.17. The results suggested that the cultivation of wheat intercropped with Egyptian clover has possibility to provide food both for human and animal of small-scale farmers with limited land and water resources, and also to reduce evaporation from soil surface in the Egyptian Nile Delta. The cutting treatment at early stage of crops was not effective of production of neither wheat nor clover.

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© 2016 Japanese Society for Tropical Agriculture
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