Effect of magnified and equality of irrigation water in the soil saturated hydraulic conductivity and the soil water infiltration in clay loam soil during the growth stages ofbarley crop (Hordium vulgare L.)

Field experiments were conducted at the research station, college of agriculture, university of Basra at Garmit Ali district. The experiments were carried out during the winter season 2012-2013 in clay loam soil. The aims of the research are to study the effect of water magnetization and the quality of irrigation water in the saturated hydraulic conductivity of the soil and the water infiltration during the plant growth stages (beginning of the forest, beginning of flowering and after crop harvesting) of barley crop (Hordium vulgare L.) . The magnetization of irrigation water treatments included, non-magnetized water (Mo) and magnetized water (M1). The irrigation water quality treatments included five types of water namely, tap water (TW) , river water (RW) , sewage water (WW) ,treated sewage water passed through sandy filter (WWT) and mixed water (MW) ( 50% RW + 50% WWT ).The experiments were conducted using factorial randomized complete block design (RCBD) . The irrigation water was added on the basis of the shortfall in the level of water of the evaporation basin installed in the field. The amount of water added was 100% of the amount vaporized water plus 20% for leaching requirements. The results showed that: magnetized water treatments surpassed the non-magnetized water treatments in increasing the soil saturated hydraulic conductivity for both depths (0-30) cm and (30-60) cm. TW treatment gave the highest value of the soil saturated hydraulic conductivity while RW treatment gave the lowest values for both depths. WW, WWT and MW treatments gave intermediate values of soil saturated hydraulic conductivity. The order of the treatments effect on the soil saturated hydraulic conductivity is WWT > WW > MW for depth of (0-30 cm) while the order is WW > WWT > MW for depth (30-60) cm. The soil saturated hydraulic conductivity decreased with growth season progress for both depths. Depth of (30-60) cm gave lower soil saturated hydraulic conductivity compared with depth of (0-30) cm. The cumulative infiltration and infiltration rate increased in the soil irrigated by magnetized water compared with the soil irrigated by non-magnetized water at the end of the growth season. The effect of the water quality treatments on both parameters is in order TW > WWT > WW > MW > RW.

Keywords:

magnified water , sewage water , soil hydraulic conductivity , water infiltration