Collecting meaningful data on labour use in onfarm trials in subSaharan Africa
In order to measure the effects of new agricultural technologies on labour productivity in sub-Saharan Africa, on-farm trials are usually conducted using small plots. Farmers who keep no records have to be interviewed frequently to minimize the effect of memory loss on the accuracy of the data colle...
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| Format: | Journal Article |
| Language: | Inglés |
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Cambridge University Press
1993
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| Online Access: | https://hdl.handle.net/10568/97364 |
| _version_ | 1855525175586455552 |
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| author | Spencer, D. |
| author_browse | Spencer, D. |
| author_facet | Spencer, D. |
| author_sort | Spencer, D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In order to measure the effects of new agricultural technologies on labour productivity in sub-Saharan Africa, on-farm trials are usually conducted using small plots. Farmers who keep no records have to be interviewed frequently to minimize the effect of memory loss on the accuracy of the data collected. In this paper, results are reported of experiments in the forest zone of Nigeria and the semi-arid Sahel of Niger. They show that if researchers can take steps to fix events in the memory of farmers, accurate labour use data can be collected in interviews as long as three months after the events being recalled. A range of plot sizes, with a minimum of 350 m2 in the forest zone, needs to be used to measure accurately labour use per hectare and to take into account the effect of economies of size on crop production. |
| format | Journal Article |
| id | CGSpace97364 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1993 |
| publishDateRange | 1993 |
| publishDateSort | 1993 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace973642025-11-11T10:17:06Z Collecting meaningful data on labour use in onfarm trials in subSaharan Africa Spencer, D. farmers economics agronomic practices cropping patterns In order to measure the effects of new agricultural technologies on labour productivity in sub-Saharan Africa, on-farm trials are usually conducted using small plots. Farmers who keep no records have to be interviewed frequently to minimize the effect of memory loss on the accuracy of the data collected. In this paper, results are reported of experiments in the forest zone of Nigeria and the semi-arid Sahel of Niger. They show that if researchers can take steps to fix events in the memory of farmers, accurate labour use data can be collected in interviews as long as three months after the events being recalled. A range of plot sizes, with a minimum of 350 m2 in the forest zone, needs to be used to measure accurately labour use per hectare and to take into account the effect of economies of size on crop production. 1993-01 2018-09-14T07:37:41Z 2018-09-14T07:37:41Z Journal Article https://hdl.handle.net/10568/97364 en Limited Access application/pdf Cambridge University Press Spencer, D. (1993). Collecting meaningful data on labour use in on-farm trials in sub-Saharan Africa. Experimental Agriculture, 29(1), 39-46. |
| spellingShingle | farmers economics agronomic practices cropping patterns Spencer, D. Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title | Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title_full | Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title_fullStr | Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title_full_unstemmed | Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title_short | Collecting meaningful data on labour use in onfarm trials in subSaharan Africa |
| title_sort | collecting meaningful data on labour use in onfarm trials in subsaharan africa |
| topic | farmers economics agronomic practices cropping patterns |
| url | https://hdl.handle.net/10568/97364 |
| work_keys_str_mv | AT spencerd collectingmeaningfuldataonlabouruseinonfarmtrialsinsubsaharanafrica |