IMPACT OF HYBRID RICE ON INPUT DEMAND AND PRODUCTIVITY

被引:20
作者
LIN, JY
机构
[1] Department of Rural Economy, Development Research Center, Beijing, 100032
关键词
D O I
10.1016/0169-5150(94)90004-3
中图分类号
F3 [农业经济];
学科分类号
0202 ; 020205 ; 1203 ;
摘要
This paper uses farm-level data collected from a sample of 500 households in Hunan province, China, to analyze the impact of hybrid rice on input demand and productivity. Based on regression analyses, it is found that, compared with conventional modern varieties, hybrid rice uses about 4% less labor inputs, 2% less draft animal services, and 6% more chemical fertilizers. The lesser requirements for labor and draft animal services probably arise from hybrid rice's lower seeding rate. Due to heterosis and high seed costs, the use of F1 seed is economized to about one-third to one-fourth that of conventional varieties. Therefore, less labor and animal power is needed for seed-bed preparation and transplanting. It is also found that, given the same level of inputs, the yield advantage of hybrid rice over the conventional modem varieties is about 19%. Because of the productivity potential, hybrid rice is a candidate for the second-generation ''Green Revolution'' in other parts of Asia.
引用
收藏
页码:153 / 164
页数:12
相关论文
共 15 条
[1]  
Barker, Chapman, The economics of sustainable agricultural systems in developing countries, (1988)
[2]  
Barker, Cordova, Labor utilization in rice production, Economic Consequences of New Rice Technology, (1978)
[3]  
Barker, Herdt, The Rice Economy of Asia, (1985)
[4]  
Byerlee, Maintaining the momentum in Post-Green Revolution agriculture: a micro-level perspective from Asia, MSU Int. Dev. Pap. 10, (1987)
[5]  
He, Te, Zhu, Travers, Lai, Herdt, The economics of hybrid rice production in China, IRRI Res. Pap. Ser. 101, (1984)
[6]  
He, Zhu, Flinn, A comparative study of economic efficiency of hybrid and conventional rice production in Jiangsu Province, China, Oryza, 24, pp. 229-241, (1987)
[7]  
Herdt, Increasing crop yields in developing countries, (1988)
[8]  
Jamison, Lau, Farmer Education and Farm Efficiency, (1982)
[9]  
Johnston, Econometric Methods, (1984)
[10]  
Lin, The household responsibility system reform and the adoption of hybrid rice in China, J. Dev. Econ., 36, pp. 353-372, (1991)