Whose gap counts? The role of yield gap analysis within a development-oriented agronomy (Record no. 64335)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03503nab|a22003017a|4500 |
| 001 - CONTROL NUMBER | |
| control field | 64335 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220919223731.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 200822s2019||||xxk|||p|op||||00||0|eng|d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 0014-4797 |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1469-4441 (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER | |
| Standard number or code | https://doi.org/10.1017/S0014479718000236 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Silva, J.V. |
| Field link and sequence number | 001712458 |
| Miscellaneous information | Sustainable Intensification Program |
| -- | Sustainable Agrifood Systems |
| 9 (RLIN) | 9320 |
| 245 10 - TITLE STATEMENT | |
| Title | Whose gap counts? The role of yield gap analysis within a development-oriented agronomy |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Cambridge (United Kingdom) : |
| Name of publisher, distributor, etc. | Cambridge University Press, |
| Date of publication, distribution, etc. | 2019. |
| 500 ## - GENERAL NOTE | |
| General note | Peer review |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Yield gaps have become a useful tool for guiding development-related agronomy, especially in the global South. While critics have challenged some aspects of the yield gap methodology, and the relevance of food security advocacy based on yield gaps, very few studies question the actual relevance, application and scalability of yield gaps for smallholder farmers (and researchers) in the tropics. We assess these limitations using two contrasting case studies: maize-based farming systems in Western Kenya and rice-based farming systems in Central Luzon, the Philippines. From these two cases, we propose improvements in the use of yield gaps that would acknowledge both the riskiness of crop improvement options and the role that yield increases might play within local livelihoods. Participatory research conducted in Western Kenya calls into question the actual use and up-scaling of yield measurements from on-station agronomic trials to derive estimates of actual and water-limited yields in the region. Looking at maize yield gaps as cumulative probabilities demonstrates the challenges of assessing the real magnitude of yield gaps in farmers’ fields and of deciding whose yield gaps count for agricultural development in Kenya. In the case of rice-based farming systems, we use a historical dataset (1966–2012) to assess changes in rice yields, labour productivity, gross margin and rice self-sufficiency in Central Luzon, the Philippines. While large rice yield gaps persist here, there appear to be few incentives to close that gap once we consider the position of crop production within local livelihoods. In this context, economic returns to labour for farm work were marginal: labour productivity increased over time in both wet and dry seasons, but gross margins decreased in the wet season while no trend was observed for the dry season. Since most households were rice self-sufficient and further increases in crop production would offer minimal returns while relying increasingly on hired labour, we question who should close which yield gap. Our case studies show the importance of contextualising yield gaps within the broader livelihood context in which farmers operate. We propose that this should be done at farm and/or farming systems level while considering the risks associated with narrowing yield gaps and looking into multiple performance indicators. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in English |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Silva, J.V. : No CIMMYT Affiliation |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Yield gap |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1356 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Agricultural development |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1002 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Smallholders |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1763 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ramisch, J. |
| 9 (RLIN) | 11737 |
| 773 0# - HOST ITEM ENTRY | |
| Related parts | v. 55, no. s2, p. 311-338 |
| Place, publisher, and date of publication | Cambridge (United Kingdom) : Cambridge University Press, 2019. |
| International Standard Serial Number | 0014-4797 |
| Title | Experimental Agriculture |
| Record control number | u444498 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Article |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Date last seen | Price effective from | Koha item type | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10/08/2021 | 10/08/2021 | Article | Not Lost | Dewey Decimal Classification | Reprints Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 10/08/2021 |