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The study was conducted at Technical Institute of Cereals (ITGC- Setif) during the years 2014-2018 for understanding the effect of weed treatment in direct seeding on cereal yield, soil and seeds quality. Two horizons were considered: horizon one (0 less than  H1 less than  20 cm) and horizon two (H2 less than  20 cm) and four herbicide doses were applied: D1 =1080g ha-1, D2= 900g ha-1, D3= 720 g ha-1 and D4= 540 g ha-1. The yield results depended on the herbicide doses applied before seeding. The highest yield responded to the highest dose of herbicide applied (1080g ha-1). Study indicated that glyphosate reached soil during weed treatment and transferred in deep soil layer and to harvested seeds. Half-live values (DT50) of glyphosate found under field conditions were high.

Effect of Weed Treatment on Cereal Yield in Direct Seeding: A Challenge Between Soil Pollution and Seeds Quality