Economic efficiency of hybrid and conventional rice production in Jiangsu Province, China
1989
He Guiting | Flinn, J.C. (Chinese Academy of Agricultural Sciences, Beijing (China). Agro-Economic Research Inst.)
Hybrid rice, first released in China in 1976, is now grown on nearly 9 million hectares of China's ricelands. This study compares resource use and productivity of hybrid and conventional japonica and indica rice varieties. The data set was based on interviews with 90 conventional rice farmers in Jiangsu Province, China. In the south, hybrids (7.8 t/ha) outyielded japonicas (6.8 t/ha) by about 15%. In the north, hybrids (7.1 t/ha) also outyielded indicas (6.2 t/ha) by 15%. Labor use for hybrids (273 d/ha) was less than for japonicas (298 d/ha) in the north. Fertilizer use in the north and in the south did not differ significantly between varieties, although pesticide use was higher in the south than in the north, and higher on hybrids and japonicas. The analysis of resource use showed that the higher yields of hybrids were overwhelming due to technical change, as opposed to differences in management. The profitability of hybrid and japonica rices were similar, although hybrids were higher yielding, japonicas were higher priced. Returns to labor were higher for hybrids, but returns to total costs did not differ significantly. Hybrids were clearly more profitable than indicas in northern Jiangsu Province, and generated higher returns to both labor and non labor inputs.
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