Soil Test Phosphorus Recovery from Livestock Manures Compared with Inorganic Fertilizer in Soil Incubations

Table 3

Phosphorus application rates with low, medium, and high approximately equal to 1/2×, 1×, and 1.5× the recommended P rate for spring feed barley, respectively.

		Phosphorus application rates
Soil	P source	mg P/kg soil			Equivalent kg P2O5/ha-fs
		Low	Medium	High	Low	Medium	High
Medium STP	MCP	8	17	25	38	76	115
	DM	—	15	22	—	69	103
	HM	10	20	30	46	92	137
Low STP	MCP	10	21	31	47	94	142
	DM	—	22	33	—	100	150
	HM	14	28	42	64	128	191