Agronomic and economic benefits of rice–sweetpotato rotation in lowland rice cropping systems in Uganda

Simple item page
cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationNational Crops Resources Research Institute, Ugandaen
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeSeed Equal
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2UG
cg.creator.identifierS.Rajendran: 0000-0003-2769-2548en
cg.creator.identifierSimon Alibu: 0000-0003-2708-0293en
cg.creator.identifierAhamada Zziwa: 0000-0002-7258-2156en
cg.creator.identifierMargaret A. McEwan: 0000-0001-8510-0526en
cg.creator.identifierNAMANDA SAM: 0000-0001-7822-0626en
cg.creator.identifierRobert Mwanga: 0000-0003-4405-2745en
cg.creator.identifierJan Low: 0000-0001-8170-6045en
cg.identifier.doihttps://doi.org/10.1515/opag-2022-0369en
cg.isijournalISI Journalen
cg.issn2391-9531en
cg.issue1en
cg.journalOpen Agricultureen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.actionAreaSystems Transformation
cg.subject.cipANDEAN ROOTS AND TUBERSen
cg.subject.cipSWEETPOTATOESen
cg.subject.cipCROP AND SYSTEMS SCIENCES CSSen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 12 - Responsible consumption and productionen
cg.subject.sdgSDG 13 - Climate actionen
cg.subject.sdgSDG 15 - Life on landen
cg.volume9en
dc.contributor.authorKyalo, G.en
dc.contributor.authorRajendran, S.en
dc.contributor.authorAlibu, S.en
dc.contributor.authorZziwa, S.en
dc.contributor.authorMcEwan, M.en
dc.contributor.authorEkobu, M.en
dc.contributor.authorOkello, S.E.A.en
dc.contributor.authorNamanda, S.en
dc.contributor.authorOtim, M.H.en
dc.contributor.authorLamo, J.en
dc.contributor.authorMwanga, R.O.M.en
dc.contributor.authorLow, Jan W.en
dc.date.accessioned2024-12-03T16:50:38Zen
dc.date.available2024-12-03T16:50:38Zen
dc.identifier.urihttps://hdl.handle.net/10568/162992
dc.titleAgronomic and economic benefits of rice–sweetpotato rotation in lowland rice cropping systems in Ugandaen
dcterms.abstractA crop rotation study was conducted in the Agoro Rice scheme from mid-2015 to 2017 to determine the effect of sweetpotato–rice rotation in the lowlands on financial returns and sweetpotato root, sweetpotato vine, and rice yields compared to monocropping. Treatments included crop rotations of sweetpotato–rice–sweetpotato, rice–sweetpotato–rice, rice–rice–rice (control), and sweetpotato–sweetpotato–sweetpotato (control). The study used the sweetpotato varieties NASPOT 11 (cream-fleshed), NASPOT 10 O, and Ejumula (both orange-fleshed) and the rice varieties Wita 9, Agoro, and Komboka. The results showed that mean sweetpotato root yields in the rotation treatment were significantly higher (28 t ha−1) than the control (19.8 t ha−1), representing a 47% gain in yield. Generally, the percentage gain in yield across years due to rotation ranged from 3 to 132%, depending on the variety. The total number of vine cuttings was significantly different between treatments and seasons (P < 0.001). Mean rice paddy yields in rotation were 8–35% higher than the control. The higher yields of sweetpotato in the rotation can be attributed to the rotation crop benefitting from residual fertilizers applied in rice in the previous season, while rice in the rotation crop could have benefited from the land preparation and establishment of the sweetpotato fields. The benefit of rotation for both crops varied by variety while the revenue-to-cost ratio varied by season and crop variety. Revenue-to-cost ratios for rotation and control treatments were greater than 1, indicating net profits were positive for both. The rotation generated 0.43 times more revenue than rice monocropping. Both rotation and monocropping systems generated profits, but rotation was 43% more profitable. In other words, if monocropping generates 1 dollar, rotation generates 1.43 dollars. The study concludes that rotation of sweetpotato with rice led to (1) increased yields of both rice and sweetpotatoes, (2) more profitable utilization of land, (3) enhanced availability of sweetpotato planting material at the beginning of the upland growing season, and (4) reduced the cost of land preparation for the main rice crop. Findings from this study show that there is great potential for diversification of rice-based cropping systems in Uganda, which will contribute to building sustainable food systems.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceExtensionen
dcterms.audienceFarmersen
dcterms.audienceGeneral Publicen
dcterms.audienceNGOsen
dcterms.audiencePolicy Makersen
dcterms.audienceScientistsen
dcterms.available2024-11-18en
dcterms.bibliographicCitationKyalo, G., Rajendran, S., Alibu, S., Zziwa, S., McEwan, M., Ekobu, M., Okello, S. E. A., Namanda, S., Otim, M. H., Lamo, J., Mwanga, R. O. M., & Low, J. W. 2024. Agronomic and economic benefits of rice–sweetpotato rotation in lowland rice cropping systems in Uganda. Open Agriculture, 9(1). 18 p. https://doi.org/10.1515/opag-2022-0369en
dcterms.extent18 p.en
dcterms.issued2024-11-18en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.subjectcrop rotationen
dcterms.subjectriceen
dcterms.subjectsweet potatoesen
dcterms.subjectagronomic practicesen
dcterms.typeJournal Article

Files

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIP Journal Articles
CGIAR Initiative on Seed Equal
CIP Science Goal: Regenerative Agriculture
Sweetpotato Action for Security and Health in Africa (SASHA)