MgO Fertilizer Sole and Combined with Organic and Inorganic Fertilizers: Effect on Soil Chemical Properties, Turmeric Performance, and Quality in a Tropical Alfisol

Table 2

Chemical analysis of poultry manure and chemical fertilizers used.

Property	Poultry manure	NPK fertilizer	MgO fertilizer
pH (water)	6.67
Ash (%)	13.1
Organic C (%)	21.1
Total N (%)	2.8	15
C: N ratio	7.35
P (%)	1.41	15
K (%)	1.86	15
Ca (%)	0.81
Mg (%)	0.59		29.41
Na (%)	0.29
Cu (%)	0.35
Mn (%)	0.24
S (%)	0.28
Zn (%)	0.25