Climate-smart soil water and nutrient management options in semiarid West Africa: a review of evidence and analysis of stone bunds and zaï techniques

Table 3 Economic benefits of combining stone rows or grass strips with compost-N or urea-N at Saria

	2001				2002
	T_SRU	T_GSU	T_SRC	T_GSC	T_SRU	T_GSU	T_SRC	T_GSC
Minimum yield for N inputs (kg ha^-1)	195	195	271	271	195	195	271	271
Minimum yield for SWC measures (kg ha^-1)	345	187	345	187	345	187	345	187
Minimum yield for SWC + N input (kg ha^-1)	540	382	615	457	540	382	615	457
Excess yield (kg ha^-1)	158	54	821	782	-193	-135	987	915
Economic benefit (FCFA ha^-1)	22,120	7,560	114,940	109,480	-27,020	-18,900	138,180	128,100

T_SRC stone rows + compost-N T_GSC grass strips + compost-N, T_SRU stone rows + urea-N, T_GSU grass strips + urea-N. Table adapted from Zougmoré et al. [24].

ISSN: 2048-7010