Special Issue:
农业经济与管理合辑Agricultural Economics and Management
食品科学合辑Food Science
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Can harvest outsourcing services reduce field harvest losses of rice in China? |
QU Xue1, Daizo KOJIMA1, Yukinaga NISHIHARA2, WU La-ping3, Mitsuyoshi ANDO1 |
1 Department of Agricultural and Resource Economics, The University of Tokyo, Tokyo 113-8657, Japan
2 Organization for Regional and Inter-regional Studies, Waseda University, Tokyo 169-8050, Japan
3 College of Economics and Management, China Agricultural University, Beijing 100083, P.R.China |
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摘要
本文研究在机械化和外包服务快速发展的背景下,中国水稻田间收获损失,并评估机械和外包服务对收获损失的影响。数据来源于2016年研究小组与农业农村部农村经济研究中心联合进行的全国调查。研究采用非参数方法检验联合收获和外包服务是否能显著减少收获损失。同时,通过分位数回归估计机械和外包服务对收获损失的实际影响。主要研究结果如下:第一,中国水稻平均收获损失率为3.65%。第二,机械收割和机械风选造成的损失比人工操作更大,田间运输则相反。第三,联合收获增加了损失。第四,外包服务对不同收获方式损失的影响不同。外包服务增加了分段收获的损失,但减少了联合收获的损失。
Abstract The purpose of this study is to quantify the rice harvest losses in China and to evaluate the impacts of machinery and harvest outsourcing services on these losses, given the background of high-speed mechanization and outsourcing services. Data were collected from a national survey conducted in 2016 by the research team in conjunction with the Research Center for the Rural Economy of the Ministry of Agriculture and Rural Affairs of China. A non-parametric method was used to test whether combine harvesting and outsourcing services could significantly reduce harvest losses. Next, quantile regression was used to estimate the real effects of machinery and outsourcing services on harvest losses. The analysis yielded four main study outcomes. First, the harvest loss rate of rice in China was 3.65%. Second, mechanical reaping and winnowing caused greater losses than manual methods, while the opposite was true of field transportation. Third, combine harvesting increased the losses. Fourth, the effects of an outsourcing service on losses differed among the different harvesting methods. Outsourcing services increased losses in segmented harvesting but they reduced losses in combine harvesting.
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Received: 19 January 2020
Accepted:
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Fund: This research is supported by the 2015 Special Scientific Research Project of Grain Public Welfare Industry, China (201513004-2), the research grant from the Murata Science Foundation, JSPS KAKENHI, Japan (JP19H03063), and the scholarship from China Scholarship Council (CSC201906350150). |
Corresponding Authors:
Correspondence WU La-ping, E-mail: wulp@cau.edu.cn
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About author: QU Xue, E-mail: quxue@g.ecc.u-tokyo.ac.jp; |
Cite this article:
QU Xue, Daizo KOJIMA, Yukinaga NISHIHARA, WU La-ping, Mitsuyoshi ANDO.
2021.
Can harvest outsourcing services reduce field harvest losses of rice in China?. Journal of Integrative Agriculture, 20(5): 1396-1406.
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