Abstract
Nitrogen (N) fertilizer has been excessively used in China's crop production, resulting in nonpoint pollution and significant greenhouse gas emissions. Previous studies show that farmers can reduce N-fertilizer upon receiving knowledge training. However, there is little evidence of the effectiveness of this effort in the long term. Based on an experimental study of site-specific nutrient management for rice production in China and a unique household dataset captured over seven years, this study shows that the traditional training approach has not been effective in reducing Chinese farmers' N-fertilizer use. Persistently reducing farmers' excessive use of N-fertilizer in the long term will require intensive in-field guidance - something that requires substantial investment and institutional innovation.
Original language | English |
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Pages (from-to) | 105-111 |
Number of pages | 7 |
Journal | Agricultural Systems |
Volume | 135 |
DOIs | |
Publication status | Published - 1 May 2015 |
Externally published | Yes |
Keywords
- Extension
- Farmers
- Knowledge training
- Nitrogen fertilizer
- SSNM