Impact of Organic Matter, Inorganic, and Biofertilizer Combination on Soybean Yield in Entisol Soil of Indonesia

Table 6

Chemical properties of soil and organic matter.

Soil organic matter	pH H2O	C-organic (%)	P (%)	N (%)	C/N ratio	K (me/100 g)
Without fertilizer	6.5	1.4	0.0036	0.21	6.66	0.96
Straw compost	—	25.9	0.3100	0.61	42.45	0.60
Chicken manure	—	9.0	0.8000	1.66	5.42	0.88