تأثير مستوى الري و التناوب في تصريف المنقطات في الرية الواحدة أو دورة الري في ثباتية التجمعات في تربة طينية

Abstract EN

An experiment was conducted in the field of the alshoweba region of grarmat ali in Basrah city during spring season of 2011-2012 in clay soil texture, to study the effect of three irrigation levels included 100% EP، 75% EP and 50% EP interacted with alteration factor represented by selective combinations of three discharges (2,10,18)L/h in fact twelve treatments.

Maize (Zea mays L.) Class 106 was used as an indicator of the growth and production.

The level irrigation the %75 EP showed improvement in some physical properties with significant increase in values of the mean weight diameter compared with levels 50% EP and 100% EP of the soil to season start, then it referred to that significant increase in values of the MWD of increase irrigation levels(50-100%)EP in the season end.

Whoever drip irrigation maintained the soil structure as a result of significant increased in the values of average weighted diameter compared surface irrigation.