Phosphorus Status, Inorganic Phosphorus Forms, and Other Physicochemical Properties of Acid Soils of Farta District, Northwestern Highlands of Ethiopia

Table 6

Inorganic P fractions and percentage distribution of active P forms.

Sampling site	Al-P	Fe-P	Ca-P	reds-Fe-P	occl-Al-Fe-P	Sum fract.	Sum active P
	(mg kg^−1)
Ayermarefiya	21	161	16	124	61	383	197
Abalomeda	17	153	16	140	66	391	185
Kumbelie	25	156	13	68	30	292	194
Korekonch	33	210	15	140	71	469	258
Agawer I	20	152	26	180	65	442	197
Agawer II	15	195	20	230	74	534	230
Jura I	38	224	58	182	70	572	319
Jura II	88	426	40	308	113	975	554
Mean	32	210	25	171	67	507	267

Al-P, Fe-P, and Ca-P = Al, Fe, and Ca bound P, respectively; reds-Fe-P = reductant soluble Fe bound P; occl-Al-Fe-P = occluded Al and Fe bound P.