Abstract
We evaluate an agricultural extension program aimed at increasing on-farm biodiversity in Alberta. Using reports prepared for program participants by the extension agency, customized surveys were used to collect data on whether recommended practices were adopted. Data were also collected from producers who were willing but unable to participate in the program due to its unexpected cancellation. A count model compared the number of practices adopted by participants and nonparticipants to evaluate the program's efficacy, and a probit model using participants’ adoption data were used to understand factors affecting adoption. Simple, low-cost, and easily trialed practices were adopted at high rates, though some higher cost practices associated with observable benefits were also adopted at moderate or high rates. Farm-specific characteristics, such as size, tenure, or group membership were also significantly linked to the likelihood of adoption. Results suggest that the extension program was successful in encouraging adoption of environmentally beneficial practices with caveats; project completion and quality were not verified, and decreasing marginal returns to extension efforts may have been realized within the small participant pool. Nous evaluons un programme d'education permanente en agriculture visant l'augmentation de la biodiversite fermiere en Alberta. Utilisant des rapports prepares par les agences d'education pour les participants de programmes, des sondages individualises ont servi a la collecte de donnees concernant l'adoption de pratiques recommandees. Des donnees ont aussi ete recueillies aupres de producteurs qui auraient voulu participer mais qui n'ont pas profite du programme suivant son annulation inattendue. Un modele de comptage a servi a comparer le nombre de pratiques adoptees par les participants et non-participants pour evaluer l'efficacite du programme, et un modele probit base sur les donnees d'adoption par les participants a servi a comprendre les facteurs ayant un impact sur l'adoption. Les pratiques simples, peu couteuses et faciles a tester ont ete hautement adoptees. Certaines pratiques a couts plus eleves, associees a des avantages observables, ont aussi vu des taux moyens et eleves d'adoption. Les caracteristiques specifiques aux exploitations agricoles comme la taille, la longevite et l'adhesion a un groupe se sont aussi trouvees liees de facon significative aux probabilites d'adoption. Les resultats suggerent que le programme d'education permanente a reussi a encourager l'adoption de pratiques benefiques pour l'environnement avec quelques bemols: la realisation des projets et leur qualite n'ont pas fait l'objet de verification, et la diminution des rendements marginaux en fonction des efforts d'education pourrait avoir ete realisee dans le cadre d'un petit bassin de participants.
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Agricultural Extension Program
Extension Program
Agricultural Extension
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