Browsing by Author "Benmahammed, A."

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    Analysis Of The Phenotypic Variability Of Some Varieties Of Durum Wheat (triticum Durum Desf) To Improve The Efficiency Of Performance Under The Constraining Conditions Of Semiarid Environments
    (University of Eloued جامعة الوادي, 2016-09-01) Haddad, L.; Bouzerzour, H.; Benmahammed, A.; Zerargui, H.; Hannachi, A.; Bachir, A.; Salmi, M.; Oulmi, A.; Nouar, H.
    The experiment was conducted during three growing seasons and two planting dates. The cultivation site is placed at the ITGC Setif characterized by a semi-arid environment. The objective of the study is the analysis of phenotypic variability of traits measured for 15 varieties of durum wheat, through the average effects, to decline the ways, characters and varieties could play in favour of performance under the constraining semi-arid conditions. The year effect indicates that given the difficulty of predicting the performance enabled by years, it then makes sense to go straight for this performance within genotypes. Analysis of the effect genotype highlights characters connected to performance and is the Setifis variety that lends itself well. For the effect of sowing date, it is that early sowing promotes a better expression of the characteristics compared to late sowing.
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    IMPACT OF EARTHWORM ACTIVITY ON THE CHEMICAL FERTILITY OF IRRIGATED SOIL WITH URBAN EFFLUENTS
    (University of Eloued جامعة الوادي, 2017-09-01) Addad, D.; Kribaa, M.; Ababsa, N.; Tamrabet, L.; Hafidi, M.; El Fels, L.; Benmahammed, A.
    The reuse of urban effluents to irrigate the soils of peri-urban grasslands in the vicinity of the town of Setif (northeastern Algeria) is an old and widespread practice. In this context, the present study was conducted to evaluate the effect of the irrigation with urban effluents on the biological and chemical behavior of soils. Effluents analysis showed significant organic and particulate pollution, the latter contributed to earthworm abundance and increased the richness of irrigated soils with nutrients. The analysis of turricules revealed the role of earthworms through the activity of bioturbation in the increase of the rate of organic matter as well as in the bioavailability of the nutrients of the irrigated soils. In space, permanent vegetation cover has played an important role as a biofilter. This was confirmed by the inter-site differences recorded through the measured variables particularly organic ones.