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| Effect of planting structure adjustment on chemical fertilizer applications in China |
| Received:April 29, 2019 |
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| KeyWord:chemical fertilizer application;planting structure;vegetable harvest area;fruit harvest area |
| Author Name | Affiliation | E-mail | | LIU Jing | Institute of Agricultural Economics and Development of CAAS, Beijing 100081, China | | | LIAN Yu-yang | Survey Office of the National Bureau of Statistics in Beijing, Beijing 100054, China | lianyuyang2015@126.com |
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| Abstract: |
| Chinese pure chemical fertilizer application(PCFA) has continuously increased from 1978 to 2015. Although there was a negative growth of PCFA for the first time in China in 2016, the use intensity of chemical fertilizers did not substantially decrease, and the per unit cultivated land using PCFAs was still as high as 443.53 kg·hm-2, which greatly exceeded the safety ceiling of 225 kg·hm-2 set by developed countries to prevent chemical damage to the environment. This study used data from 26 provinces from 1994 to 2016 to adopt descriptive statistical analysis and econometric models in order to scientifically explore the relationship between the planting structure adjustment in terms of the increase in vegetable and fruit crops and PCFA which quantitatively estimate the coefficient between the increase in vegetable and fruit crops with chemical fertilizer application. The results showed that the main reasons for the considerable increase in PCFA and high chemical fertilizer intensity in China were the planting structure adjustment and the growth ratio of vegetable and fruit harvest areas. In addition, the regional economic development level and total crop harvest area had significant positive impacts on the increase in PCFA, while the chemical fertilizer price had a significantly negative impact on the amount of fertilizer applied. |
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