Table 3
Nutrient content of organic wastes incorporated into the soil kg ha−1
		N	P	K	Ca	Mg	OC	C/N
Acronym	Description	kg ha-1					%
WR	Wheat residue	4.62	0.65	6.47	2.24	0.66	41.3	59.0
RF + WR	Fertilizer with wheat residue	11.82	1.81	14.45	4.51	1.39	41.3	52.08
GR	Guar residue	83.22	31.45	111.69	62.19	48.62	29.7	15.63
RF + CR	Fertilizer with guar residue	109.64	51.29	135.24	71.24	56.89	29.8	12.96
SS	Sewage sludge applied throughout the experiment	280.0	28.0	340.0	0.96	0.78	24.0	8.57
H	Humentos applied throughout the experiment	300.0	0.35	5.50	0.70	0.7	-	-

Rezig et al. International Journal Of Recycling of Organic Waste in Agriculture 2012 1:1   doi:10.1186/2251-7715-1-1