Public Agricultural Extension, Pest and Disease Experience, and Adoption of Improved Wheat Varieties

Xin Wang, Yanping Song, Wei Huang

Published: 23.08.2023  〉 Volume 72 (2023), Number 3/4, 137-153  〉 Resort: Articles 
Submitted: 21.12.2022   〉 Feedback to authors after first review: 10.05.2023   〉 Accepted: 14.07.2023

ABSTRACT

Improved varieties are considered critical for increasing crop yields worldwide. This study explored the effects of public agricultural extension and pest and disease experience on adoption of improved varieties using survey data on 525 wheat farmers in Anhui Province, China, to which the Heckman sample selection model was applied. The results showed that public agricultural extension had a significant positive relationship with adoption of improved varieties. Demonstration and training, as different forms of agricultural extension, both increased the probability of farmers adopting improved varieties, but only demonstration had a marked effect on degree of adoption. Pest and disease experience increased the probability of adoption of improved varieties by farmers and significantly enhanced the effect of public agricultural extension, but did not affect degree of adoption. Further analysis using an endogenous switching regression model revealed that adoption of improved varieties raised wheat yields by around 337.83 kg/ha. Public agricultural extension should thus be strengthened, especially for farmers with pest and disease experience, and a diversified, well-functioning agricultural extension system should be provided.
CONTACT AUTHOR
DR. YANPING SONG
School of Economics and Management,
Anhui Agricultural University
130 Changjiang West Road, Hefei 230036, China
e-mail: syp@ahau.edu.cn

DR. VIVIAN WEI HUANG
Department of Economics,
Swedish University of Agricultural Sciences
Box 7013, Uppsala, 75007, Sweden
e-mail: wei.huang@slu.se
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