Table 2 Chemical composition of poultry manure used for the experiment.

From: Poultry manure improves soil properties and grain mineral composition, maize productivity and economic profitability

Poultry manure property

Value

pH (water)

6.8

Organic carbon (%)

29.5

Nitrogen (%)

3.03

C:N

9.7

Phosphorus (%)

1.38

Potassium (%)

2.35

Calcium (%)

1.20

Magnesium (%)

0.58

Sulphur (%)

0.32

Manganese (%)

0.36

Iron (%)

0.14

Copper (%)

0.38

Zinc (%)

0.23

Sodium (%)

0.27

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