Location

Inorganic N (mg∙kg⁻¹)

Soil Extractable P(mg∙kg⁻¹)

Manure

No manure

MSD

Manure

No manure

MSD

Naivasha

1.80^a*

0.83^a+

0.22

52.44^a≠

41.73^aᶲ

2.87

Machakos

1.13^b*

0.27^b+

0.24

98.25^b≠

72.56^bᶲ

8.33

MSD

0.34

0.26

23.76

18.45