Maximizing water productivity by intercropping onion on sugar beet in the North middle Nile Delta region [electronic resources].

Includes reference.

Two field experiments were conducted at Sakha Agricultural Research Station, Kafr EI-Sheikh Governorate, during the two successive seasons 2012/2013 and 2013/2014. The investigation was aimed to maximize water productivity by intercropping onion on sugar beet through investigate the effect of irrigation and intercropping treatments on onion and sugar beet yield, yield components, quality and some water relations in the North Middle Nile Delta region (31° O7- N Latitude and 30° 57- E longitude with an elevation of about 6 metres above mean sea level). The experimental design was split plot with three replicates, the main plots were randomly assigned by three irrigation treatments, I1 (irrigation with 0.8 Ep), l2 (irrigation with 1.0 Ep) and b (irrigation with 1.2 Ep), while sub main plots were also randomly assigned by intercropping treatments, D1 (lntercropping onion with sugar beet by planting sugar beet as in pure stand and planting one row only of onion on the back of bed as in pure stand), D2 (lntercropping onion with sugar beet by planting sugar beet as in pure stand and planting two row only of onion on the back of bed as in pure stand), D3 (lntercropping onion with sugar beet by planting sugar beet as in pure stand and planting three row only of onion on the back of bed as in pure stand), D4 (pure stand of sugar beet was planted in bed 120 cm width, spaced 20 cm between hills on both sides of beds to give 35000 plants/ fad.) and D5 (pure stand of onion with planted in rows on the back of bed, 120 cm width, 15 cm between rows and hills). The main results can be summarized as follows:The highest values for water applied (Wa) and consumptive use (Cu) were recorded under irrigation treatment band the values are 69.03 cm. (2899.41 m3 /fed.), 73.23 cm. (3075.55 m3/ fed.) for Wa and 41.26 cm. (1733.13 m3 /fed.) and 42.25 cm.

Summary in Arabic.

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