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A critical assessment of a desk study comparing crop production systems: The example of the 'system of rice intensification' versus 'best management practice'

Uphoff, N., Kassam, A. and Stoop, W. (2008) A critical assessment of a desk study comparing crop production systems: The example of the 'system of rice intensification' versus 'best management practice'. Field Crops Research, 108 (1). pp. 109-114. ISSN 0378-4290

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To link to this item DOI: 10.1016/j.fcr.2007.12.016

Abstract/Summary

When assessing hypotheses, the possibility and consequences of false-positive conclusions should be considered along with the avoidance of false-negative ones. A recent assessment of the system of rice intensification (SRI) by McDonald et al. [McDonald, A.J., Hobbs, P.R., Riha, S.J., 2006. Does the system of rice intensification outperform conventional best management? A synopsis of the empirical record. Field Crops Res. 96, 31-36] provides a good example where this was not done as it was preoccupied with avoiding false-positives only. It concluded, based on a desk study using secondary data assembled selectively from diverse sources and with a 95% level of confidence, that 'best management practices' (BMPs) on average produce 11% higher rice yields than SRI methods, and that, therefore, SRI has little to offer beyond what is already known by scientists.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development
ID Code:9301
Uncontrolled Keywords:rice yield, Oryza sativa, statistical methods, statistical errors, ORYZA-SATIVA L., SRI, IRRIGATION

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