Economic analysis and food security contribution of supplemental irrigation and farm ponds: evidence from northern Burkina Faso

Table 7 IRR and NPV of the supplemental irrigation system on 0.25 ha of corn

Pond categories	IRR	NPV
Pond categories	IRR	5%	10%	12.5%	15%	20%	25%	30%
Pond 1: bottom and walls not waterproofed	19.5%	756,390	369,568	238,707	21,141	− 10,870	− 144,460	− 169,238
Pond 2: waterproof bottom of clay and cemented walls	15.2%	615,438	235,022	107,151	7,185	− 13,4204	− 224,408	− 283,084
Pond 3: tarpaulin bottom and cemented walls	4.5%	− 53,490	− 432,456	− 555,114	− 648,053	− 856,457	− 842,827	− 912,311
Pond 4: tarpaulin bottom and tarpaulin walls	1.1%	− 476,956	− 830,735	− 942,964	− 1,026,516	− 1,134,116	− 1,190,615	− 1,216,555

Pond categories	NPV
Pond categories	35%	40%	45%	50%	55%	60%	65%	70%
Pond 1: bottom and walls not waterproofed	− 213,954	− 241,265	− 261,305	− 274,930	− 283,992	− 289,753	− 293,092	− 294,635
Pond 2: waterproof bottom of clay and cemented walls	− 321,647	− 346,979	− 346,979	− 373,597	− 379,476	− 382,253	− 382,789	− 381,693
Pond 3: tarpaulin bottom and cemented walls	− 900,212	− 906,392	− 904,481	− 902,578	− 886,739	− 876,355	− 859,800	− 844,816
Pond 4: tarpaulin bottom and tarpaulin walls	− 1,223,763	− 1,219,283	− 1,207,443	− 1,190,976	− 117,1642	− 1,150,601	− 1,128,625	− 1,106,236

ISSN: 2048-7010