Biosolids with different loading rates were applied to soil planted with rain-fed barley to study the effects of applying biosolids on soil and on barley's straws and grains yield. Randomized Complete Block experimental design was employed with 5 treatments. This included a control and four replicates to test the null hypothesis which states that there is no significant difference between treatment means on crop and soil parameters vs. the research hypothesis which states applying biosolids to land planted with rain-fed barley affects both soil and crop parameters. Biosolids loading rates were 0 as a control, 2, 4, 6, and 8 metric tons/ha.
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