年龄对农民跨期绿色农业技术采纳的影响
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Effects of age on farmers’ adoption of intertemporal green agricultural technology
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图3. 年龄与农民秸秆还田行为散点图及二次回归拟合曲线 |
Figure 3. Scatter plot and quadratic fitting curve of age and farmers’ straw returning behaviors |
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