Optimal Cotton Insecticide Application Termination Timing: A Meta-Analysis
Terry Griffin () and
No 196815, 2015 Annual Meeting, January 31-February 3, 2015, Atlanta, Georgia from Southern Agricultural Economics Association
The timing to terminate cotton insecticide applications are disputed among investigators. Nine publically available studies meeting selection criteria were synthesized to identify and develop a comprehensive optimal termination timing principle. The meta-database included 247 trial observations from 53 independent field experiments from the cotton belt between 1993 and 2007. Agronomic optimal timing to terminate insecticide applications when yield reached a plateau was estimated using an original econometric approach. Novel econometric methodology were developed to address multiple time points from multiple means comparison studies. Meta-analysis methodologies along with stochastic plateau theory were used to determine the shape of the functional form of both the optimal agronomic insecticide termination time and corresponding cotton yield potential. The proposed methodology can be extended to other crops and associated limiting factors of production, for further economic analyses. Results provided insights useful to improve production systems by applying inputs only when benefits were expected to be in excess of the respective costs. In addition to estimating the specific number of accumulated heat units needed to reach an overall cotton yield plateau, the developed meta-analysis framework evaluated whether field research results converged to an overall ‘true’ insecticide termination timing thereby addressing the question whether funding sources properly invested resources in later years.
Keywords: Crop Production/Industries; Farm Management; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods (search for similar items in EconPapers)
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1) Track citations by RSS feed
Downloads: (external link)
https://ageconsearch.umn.edu/record/196815/files/S ... inZapata%20final.pdf (application/pdf)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:ags:saea15:196815
Access Statistics for this paper
More papers in 2015 Annual Meeting, January 31-February 3, 2015, Atlanta, Georgia from Southern Agricultural Economics Association Contact information at EDIRC.
Bibliographic data for series maintained by AgEcon Search ().