Exploring farmer options for maize production strategies via scenario analysis using the APSIM model-an example of the approach

dc.creatorKeating, B.
dc.creatorWaddington, S.
dc.creatorShamudzarira, Z.
dc.creatorGrace, P.
dc.creatorRohrbach, D.
dc.creatorSnapp, S.S.
dc.creatorDimes, J.
dc.creatorCarberry, P.S.
dc.creatorRobertson, M.
dc.date2014-03-13T00:57:21Z
dc.date2014-03-13T00:57:21Z
dc.date2000
dc.date.accessioned2023-07-17T19:57:58Z
dc.date.available2023-07-17T19:57:58Z
dc.identifier1665-045-X
dc.identifierhttp://hdl.handle.net/10883/3669
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7509396
dc.descriptionThis report summarizes a workshop in which the APSIM (Agricultural Production Systems Simulator) farming systems model was applied to the analysis of management options critical to maize production in Zimbabwe. The modeling analysis focused on responses to investment in nitrogen fertilizer inputs, in terms of investments in timely sowing and weeding. The study evaluated a number of alternative scenarios of land, labor, and financial constraints for a farm household which were based on local information. Scenarios were established whereby the resources available could be deployed in different ways over multiple fields on the farm. In one scenario, fertilizer inputs, and weeding and plowing/sowing efforts were concentrated on a portion of the farm and the remainder was left idle. In another scenario, the resources were spread evenly over the whole farm; others involved the shifting of resources between investments in fertilizer inputs, early sowing, and more effective weeding regimes. The study was configured for a farm in Natural Region II using a Harare climate data on a shallow, infertile, sandy soil. Since the farm household constraints were very simply defined, the study needs to be repeated with more careful specification of the constraints and in other drier regions of the country. Despite these deficiencies, the study does highlight the challenges that smallholders face when investing in fertilizer inputs, and provides some direction for future on-farm research.
dc.description12 pages
dc.formatPDF
dc.languageEnglish
dc.publisherCIMMYT
dc.relationRisk Management Working Paper Series
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
dc.rightsOpen Access
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectFERTILIZERS
dc.subjectMAIZE
dc.subjectSIMULATION MODELS
dc.subjectNITROGEN FERTILIZERS
dc.subjectFARMING SYSTEMS
dc.titleExploring farmer options for maize production strategies via scenario analysis using the APSIM model-an example of the approach
dc.typeWorking Paper
dc.coverageZimbabwe
dc.coverageMexico


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