Impacts des techniques culturales sur le comportement physique du sol et la culture du blé dur (Triticum durum Desf.) sous les conditions semi-aride de la région de Sétif

Abstract

The study was conducted at the experimental station of the field crop

institute ITGC of Setif during the 2010 /11 crop season. The objective was to

compare the effect of three tillage systems on the development of physical

soil properties and the crops behavior of durum wheat (Triticum durum,

Desf.), Bousselem variety. The analysis-comparing test of the three cropping

systems: Zero till (SD), conventional till (TC) and simplified techniques (TCS),

was conducted in a complete randomized block design with three replications.

The studied soil parameters were the evolution moisture during the plants

growth cycle, the water infiltration rate and the agronomic culture aspects.

The results showed that there was no effect of the system on the soil

moisture. An advantage and a better soil permeability have been recognized

in the TCS system. Zero till gave the best perfor mance in plant growth and

spark number per area unit. The results showed also that direct seeding had

the highest infestation by weeds in wheat crop compared to the other

systems.