Abstract:
The results of analysis of Wastewater from Pak Arab Fertilizer Ltd. showed that it was very highly saline and low sodic (water quality class: C4-S1). The qualitative analysis of the residue from the wastewater showed the presence of chlorides, sodium and calcium. The effects of the wastewater and its dilutions on seed germination and seedling growth of Zea mays L. and Cucumis sativus L. were studied. The results generally indicate no inhibitory effect on seed germination but as regards the seedling growth, the wastewater as such had the greatest depressive effect, followed by the wastewater with 1:1 and 1:3 dilutions. This indicated the sensitivity of both Zea mays and cumus sativus to phytotoxic effects. It can thus be concluded that the wastewater of Pak Arab Fertilizer Ltd., is unfit for agricultural use and it may have deleterious effects on soils when used for irrigation purposes causing salinity and sodicity problems unless proper management techniques are adopted.
Page(s):
101-106
DOI:
DOI not available
Published:
Journal: Journal of Science and Technology, Volume: 14, Issue: 1--2, Year: 1990