12 pages., Purpose
Pervasive use of poor quality seed remains an important reason for low yields throughout the developing world. We explore ways to increase the quality of the local stock of seed tubers among a sample of Ugandan potato farmers.
Design/methodology/approach: Using videos, we provide agricultural extension information on (i) how to select the best seed tubers and (ii) how to properly handle and store seed tubers until the next planting season. The relative effectiveness of the information interventions is tested using an individually randomized controlled trial where we model spillovers using a randomization-based framework for estimating causal effects under interference between units.
Findings: Especially the video on seed selection translated into increased awareness and adoption of recommended practices, increased probability of using improved inputs, as well as higher consumption.
Practical implications: Interventions aimed at improving seed quality are important in the absence of access to high-quality seed. Video messages are becoming increasingly useful as a complementary tool in agricultural extension.
Theoretical implications: Randomization-based inference can be used to take into account spillover effects in the analysis rather than the design phase of an experiment.
Originality/value: This is the first study to address seed quality of potato tubers in a real-world setting using videos.
Kadiyala, Suneetha (author), Morgan, Emily H. (author), Cyriac, Shruthi (author), Margolies, Amy (author), Roopnaraine, Terry (author), and Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
Leverhulme Centre for Integrative Research on Agriculture and Health (LCIRAH), London, United Kingdom
Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States of America
St. Johns Research Institute, Bengaluru, Karnataka, India
Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
Independent consultant, Brasilia, DF, Brazil
Format:
Journal article
Publication Date:
2016-10-13
Published:
India: Public Library of Science
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 164 Document Number: D08245
Richardson, John G. (author), Staton, Joy (author), Bateman, Ken (author), and Hutcheson, Clayton E. (author)
Format:
Conference paper
Publication Date:
2000-01-30
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 111 Document Number: C10679
Journal Title Details:
7 page
Notes:
Presented to the Agricultural Communications Section of the Southern Association of Agricultural Scientists (SAAS), January 30-February 1 in Lexington, Kentucky.
