Impact of Water Qualitiy on Barley Varieties, Soil Properties and Their Contents of Heavy Metals

Abstract

Two Lyzimeter experiments were conducted at Sakha Agricultural Research Station, Kafr El-Sheikh, Egypt, for two seasons, 2010/2011 and 2011/2012 Lyzimeters (100 x 70 x 90 cm) were filled with clayey soil and irrigated with three water treatments since twenty three years ago. The present study aimed to investigate the effect of irrigation water quality for long-term on productivity of four barely varieties (Giza123, 124, 126 and Giza129). Three irrigation water qualities; Nile water (W1), polluted drainage water (W3) and mixed water; W2 (50% W1 + 50% W3) used for irrigation to study its effects on barely contents from four heavy metals Ni, Cd, Pb and Cu and some soil characteristics. A split-plot design with four replicates was used where, water treatments and varieties were allocated to main and sub-plots, respectively. The obtained results showed that:  Using poor water quality for irrigation increased ECe, SAR, soluble cations and anions in soil paste extract and DTPA extractable heavy metals in soils (Cu, Ni, Cd and Pb) than that of mixed or good water quality.  Highly significant differences of yield and yield components among barely varities were found due to irrigation water treatments and its contents of heavy metals.  Straw heavy metals content were higher than that of grains.  The results showed that Giza 123 was more tolerant variety to drainage and mixed water and its lower or higher contents of Ni, Pb and Cu.  No significant differences were found among Cd content for all studied barley varieties.  The heavy metals content of barley varieties from can be arranged as follow: With Pb: v2< v3 < v1 <v4 With Cu: v1 < v2 < v3<v4 With Ni : v2 < v1 < v3<v4

Response of Wheat Plants to Seaweed Extracts and Fluvic Acid under Irrigation with Drainage Water

“…Therefore, the increase in grain yield owing to Nile water was the logical result of the achieved increase in components. These results are in agreement with those reported by Mostafa (2001a), Zein et al (2012), Atwa et al (2013), Sahay et al (2013) and Nassar et al (2014) who recorded that using Nile water for crop irrigation caused an increase in yield and its components of wheat as compared with the other water as lowest quality (drainage water).On the other hand, using low-quality water in agriculture has bad impacts on soil properties and sowing crop by either increasing their contents of heavy metals or increasing salinity levels, whereas increasing water salinity level reduced wheat production (Mostafa, 2001b).…”

“…Heavy metal toxicity is one of the major current environmental health problems and potentially dangerous due to bioaccumulation. Therefore, heavy metals contamination of soils and plants has become an increasing problem, so it could be decreased crop production (Zein et al, 2012, Atwa et al, 2013and Sahay et al, 2013.On the other hand, Nassar et al (2014) revealed that the highest mean values of grain, straw yields, and grain quality of wheat, and good character of soil before and after wheat planting were recorded under Nile water irrigation comparing with the other water irrigation qualities which decreasing wheat yield and increasing salinity, and heavy metals toxicity in the soil.…”