Management of Alternative Organic Fertilizer Sources for Wheat Production: Evidence from Decomposition Dynamics and Agronomic, Economic, and Farmers’ Preferences

Table 6

Partial budget analysis of application time and proportion of organic materials on wheat, at Kokate Mara Chare, Wolaita, in 2013 cropping season.

Partial budget	Application time (weeks before sowing)				Proportion
	Two	Four	Six	Eight	1 : 1	2 : 1	1 : 1 : 1
Ave. yield (t/ha)	4.1	3.6	2.9	2.6	3.4	3.5	3.0
Adj. yield (t/ha)	3.69	3.24	2.61	2.34	3.06	3.15	2.7
Grain income (@ 5000 birr/ton)	18450	16200	13050	11700	15300	15750	13500
Total income (birr)	18450	16200	13050	11700	15300	15750	13500
Labor for organic material preparation (birr/ha)	500	500	500	500	500	500	500
Labor for organic material application (birr/ha)	300	300	300	300	300	300	300
Total variable cost (birr/ha)	800	800	800	800	800	800	800
Net benefit (birr/ha)	17650	15400	12250	10900	14500	14950	12700

1 : 1 (Cm : Eb), 2 : 1 (Cm : Eb), and 1 : 1 : 1 (Cm : Eb : FYM).