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Abstract
Two field experiments were conducted in each of the two summer seasons 2000 and
2002, one experiment under surface irrigation and the second under sprinkler irrigation.
In each experiment, the response of two peanut varieties namely Giza-5 and NC-9 to 5
fertilization treatments were studied. The data revealed that applying the fertilization
treatment of 15.5 kg P20S + 72 kg K20 + biofertilizer microbien + growth retardant
kultar (F3) gave the highest total dry weight/plant at 75 and 90 DAS under surface and
sprinkler irrigation
vegetative growth than those
growth traits were higher under surface irrigation compared to sprinkler irrigation at 75
and 90 DAS.
Over the two seasons, fertilization treatments affected number of surviving plants/fed
at harvest insignificantly under surface irrigation and significantly under sprinkler
irrigation, where applying 31 kg PzOs /fed + 72 kg K20/fed (F5) or 15.5 kg PzOs + 72 kg
KzO + microbien + micronutrients (F4) gave the highest number of surviving plants/fed
at harvest. Moreover, Giza-5 cv. surpassed evidently NC-9 in this respect.
Over the two seasons, the highest pod yield/fed under surface irrigation resulted from
Giza-5 fertilized with F3 or F5 (25.2 ardabs/fed), while that was obtained under sprinkler
irrigation from the same variety (Giza-5) fertilized with F5 (33.2 ardabs/fed), Generally.
the pod yield/fed was evidently higher from
sprinkler irrigation than under surface irrigation.
Oil and protein contents (%) were higher in seeds of Giza-5 than those ofNC-9. Also,
in average, seeds of plants produced under surface irrigation had slightly higher oil
content than those
concerning seed protein content.
Giza-5 cv. recorded the highest WUE when fertilized with F5 or F3 under surface
irrigation as well as when fertilized with F5 under sprinkler irrigation and generally
peanut crop was more efficient in WU under sprinkler irrigation comparing with surface
irrigation.