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Figure 1

From: Phosphogypsum and poultry manure enhance diversity of soil fauna, soil fertility, and barley (Hordeum aestivum L.) grown in calcareous soils

Figure 1

Effect of PG and PM amendments on soil diversity indices. Similar letters indicate no significant variations among treatments. C Control; PM1 poultry manure at 4.2 g kg−1 soil; PM2 poultry manure at 6.30 g kg−1 soil; PM1PG1 poultry manure at 4.20 g kg-1 soil + phosphogypsum at 4.20 g kg−1 soil; PM1PG2 poultry manure at 4.20 g kg−1 soil + phosphogypsum at 6.30 g kg−1 soil; PM2PG1 poultry manure at 6.30 g kg−1 soil + phosphogypsum at 4.20 g kg−1 soil; PM2PG2 poultry manure at 6.30 g kg−1 soil + phosphogypsum at 6.30 g kg−1 soil. Each value represents a means ± standard error (SE) of five replicates.

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