| 摘要: |
| 旨在利用荟萃分析的研究方法，分析农业经营规模与化肥施用强度之间的关系，以及导致现有实证文献研究结果异质性的原因。结果表明:1)农业经营规模与化肥施用强度之间存在微弱的负相关关系；2)这种负相关关系受到农户受教育程度、年龄、研究所在国别和研究时间等因素的显著影响，即这4种因素是现有实证文献研究结果异质性的重要来源。综上，从现有的实证文献来看，农业规模经营确实有助于化肥减量化，但仍然需要深入讨论其调节变量的隐性作用机制。 |
| 关键词: 农业规模经营 化肥施用强度 荟萃分析 荟萃回归分析 |
| DOI：10.11841/j.issn.1007-4333.2020.11.18 |
| 投稿时间：2020-06-04 |
| 基金项目:国家社会科学基金重大项目(19ZDA115)；国家自然科学基金青年项目(71703041)；广东省社科基金项目(GD19CYJ15)；广东省教育厅创新团队项目(2017 WCXTD001)和广东省普通高校重点研究项目(2019 WZDXM008) |
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| Does agricultural scale management help reduce fertilizer use? Evidence from meta-analysis |
|
XIE Lin1,LIAO Jiahua2,ZHANG Yuxin2,HU Xinyan1*
|
| (1.National School of Agricultural Institution and Development, South China Agricultural University, Guangzhou 510642, China;2.School of Economics & Management, South China Agricultural University, Guangzhou 510642, China) |
| Abstract: |
| The purpose of this paper was to determine whether big farm contributes to fertilizer reduction, and to identify sources that lead to heterogeneity of research results in the existing empirical literature by meta-analysis. The results showed that: 1)There was a weak negative correlation between the farm size and the intensity of fertilizer use; 2)The empirical findings of this negative correlation were significantly affected by the degree of education of farmers, age, research country, and time of the research published. The four factors were relevant sources of heterogeneity of the existing empirical literature research results. In conclusion, agricultural scale management does contribute to reduce fertilizer, but the recessive mechanism of its regulatory variables still needs to be discussed in depth. |
| Key words: agricultural scale management fertilizer use intensity meta-analysis meta-regression analysis |
