Invasion of some inhibitors associated with irrigation water qualities to the soil [electronic resource].

Includes references.

This study aims to investigate the impact of irrigation water qualities on some environmental issues the invasion of some inhabits to the soil. Three areas were selected for conducting the all11S at Dakahalia Governorate. The first area is irrigated with fresh water, the second is irrigated with mixed and the third is irrigated with drainage water. The study period extended for summer and winter season (Maize and Wheat). The results indicate that the leaching process took place for three areas. The results indicate that the irrigation with drainage water increased the nutrients in soil. The statistical correlation between nitrate content in irrigation wter and that of soil is not high where R2 =0.430, while the correlation values for ammonia and phosphate were high where the values of R2 equal to 0.80 and 0.84 respectively. The significant values between heavy melds loud of the irrigation water and those of soil were low. The result of statistical correlation also indicate that R2 values of heavy metals follow an ascending order for Zn, Cd, Pb, Fe and Cu, where the values were 0.1643, 0.2654, 0.021, 0.3396 and 0.0255 respectively. This means that impact of irrigation with different \\atl'!" qualities for soil heavy metal content is not highly significant. The correlation values of the relation between irrigation water and soil for total, bacterial counts total coliform and fecal coliform arc not highly significant, where the R2 values arc 0.4356, 0.3478 and 0.3872 respectively. The result indicates that the drainage water could be used in irrigation either directly for the tolerant crops or after mixing with fresh water for semi tolerant crops.

Summary in Arabic.

1