Effect of ridge spacing and irrigation patterns on growth, grain yield, yield components, and water productivity for maize cropn [electronic resource].

Includes reference.

A Field trial was conducted in Gemmeiza Agricultural Research Station (Middle Nile Delta, Egypt) in 2011and 2012 to study the effect of four irrigation patterns under two ridge spacing on maize growth, grain yield, yield components, saving of applied irrigation water, and water productivity(WP). The assessed irrigation patterns were: 1) Control where all of furrows were irrigated (ALL), 2) irrigating via every other furrow starting at the 3rd irrigation (EOF3), 3) irrigation via every other furrow technique starting from the 4th irrigation (EOF4), and 4) irrigating with every other furrow starting from the 5th irrigation (EOF5). Irrigation patterns were evaluated under two ridge spacing (70 and 80 cm). The experimental design was randomized complete block arranged in incomplete block design, where replications were nested within ridge spacing and irrigation pattern treatments were randomly arranged within ridge spacing treatments. The most important findings could be as follows:- * Under 80-cm ridge spacing both days to 50% tasseling and 50% silking were significantly decreased, but 70-cm ridge spacing reduced ear height. and ear position (%). • Ridge spacing did not significantly affect plant height, grain yield, number of kernels per row, ear length, ear diameter, kernel depth, and 100-kernel weight. However, 80-cm ridge spacing was associated with higher ear length, ear diameter, kernel depth, and 100-kernel weight.

Summary in Arabic.

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