Response of grain yield and some of its components, water productivity and nitrogen use efficiency for some bread wheat cultivars to n - rate under deficit irrigation, induced via corrugation method, on vertisol [electronic resource].

Includes references.

Two field trials were conducted in 2007/08 and 2008/09 winter seasons, at Gemmeiza Agricultural Research Station Farm, Middle Nile Delta, Egypt, aiming at determining the extent to which the performance of some bread wheat cultivars; namely, Giza 168, Sakha 94 and Gemmeiza 9 responded to N-rates; viz, 50,70 and 90 Kg Ifed, under corrugation irrigation, compared with the common farmer irrigation practice prevailing in the area. The adopted treatments were assessed in a split- spilt plot design, with three replicates. Grain yield and its components, water productivity and N-use efficiency, for the adopted wheat cultivars, were in consideration.

Summary in Arabic.

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