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首页> 外文期刊>Agricultural Water Management >Productivity impacts of the system of rice intensification (SRI): A case study in West Bengal, India
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Productivity impacts of the system of rice intensification (SRI): A case study in West Bengal, India

机译：稻米集约化（SRI）系统对生产率的影响：以印度西孟加拉邦为例

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摘要

The system of rice intensification (SRI) has generated considerable debate globally, particularly with regard to its potential to raise rice yields. Proponents of SRI have reported that the average rice yield with SRI is double the current average yield and can be increased to the level of three to four times. Opponents say the reported high yields are due to measurement error and that usual information expected in support of these fantastic yields is missing. The number of SRI adopters has increased in India in recent years. We evaluate the impact of adoption of SRI practices on rice yields, the economics of paddy cultivation and labour inputs based on field research conducted in Purulia, West Bengal, India. Paddy yields with SRI were higher than those under conventional paddy cultivation by 32% and net returns were higher by 67%. Labour input was reduced by 8%. SRI adoption enabled farmers consistently to enhance paddy yields, increase returns and save labour; and enhance productivity with respect to the key inputs in terms of paddy output per unit of seed, fertilizer and labour-day. SRI promises to be a significant alternative for not only raising paddy yields, but also for managing paddy based farming in resource-starved regions.
机译：稻米集约化制度（SRI）在全球引起了广泛的争论，尤其是在提高稻米单产方面。支持者协会（SRI）的支持者报告说，使用SRI的水稻平均产量是当前平均产量的两倍，可以提高到三到四倍。反对者说，报道的高产量是由于测量误差造成的，缺少支持这些出色产量的预期常规信息。近年来，印度采用SRI的人数有所增加。我们基于在印度西孟加拉邦Purulia进行的实地研究，评估了采用SRI做法对水稻产量，水稻种植经济和劳动力投入的影响。 SRI的水稻产量比常规水稻种植高32％，净收益高67％。人工投入减少了8％。 SRI的采用使农民能够不断提高稻谷产量，增加收益并节省劳动力;并提高关键投入方面的生产率，包括每单位种子，肥料和劳动日的水稻产量。 SRI有望成为一个重要的替代方案，不仅可以提高稻谷的单产，而且可以管理资源匮乏地区的稻谷农业。

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