Crop yield gaps: their importance, magnitudes, and causes.

By David B. Lobell, K. Cassman, Christopher B. Field. 2009

1,477 citations recorded by the source corpus.

Subfields: Agronomy and Crop Science, Ecology, Evolution, Behavior and Systematics, Plant Science

View Paper: https://www.semanticscholar.org/paper/552231f4b505143c13508cb0146111ecd430ed5c

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Citations in the corpus

Global food demand and the sustainable intensification of agriculture (2011, background): “We do so with the caveat that the fitted relationships need not be indicative of causation, while noting that fits are consistent with other analyses of controls of yields (12, 14, 15).”
Renewable Fuel Standard: Potential Economic and Environmental Effects of U.S. Biofuel Policy (2012, result): “The research in these species is still in its infancy; therefore, many of the yield results are from trial plots and do not account for site quality or growing conditions, which heavily influence crop yields from production agriculture (Johnston et al., 2009; Lobell et al., 2009).”
Understanding production potentials and yield gaps in intensive maize production in China (2013, neutral): “It can be measured in various ways, including using model simulations, field experiments, yield contests, and data on maximum farmer yields (Lobell et al., 2009).”
Raising Crop Productivity in Africa through Intensification (2017, background): “Although up to 80% of the yield potential was achieved for irrigated wheat, rice, and maize, a maximum of only 50% of the yield potential was obtained for rainfed condition, indicating that large increases in crop production is expected from the latter system [96].”
Assessing agricultural risks of climate change in the 21st century in a global gridded crop model intercomparison (2013, background): “potential yields is further complicated by the presence of numerous other “yield gap” factors, including variations in cultivars and farmer management, as well as soil characteristics, pests, diseases, and weeds (38).”
Evidence of slowing yield growth – the example of Swiss cereal yields (2010, background): “current crop yields, particularly in some countries of the developed world, already approach a high percentage of yield potentials (Ewert et al., 2005; FAO, 2002; Lobell et al., 2009; Oerke and Dehne, 1997).”
Trade-offs between environment and livelihoods: Bridging the global land use and food security discussions (2017, neutral): “Currently, yields in the major irrigated wheat, rice, and maize systems in developed countries reach ~80% of the potential, but average yields in developing countries, in particular in rainfed systems are commonly 50% or less of yield potential (Lobell et al. 2009, Fischer et al. 2014).”
To close the yield-gap while saving biodiversity will require multiple locally relevant strategies (2013, background): “The underlying principle is to close the “yield gap” (Lobell et al., 2009) – the gap between realised and achievable yields across the farms of the world.”
The growth and yield of a wet-seeded rice-ratoon rice system in central China (2017, background): “However, yield gap analyses revealed that rice yields have been approaching their biophysical potential ceiling in recent years (Cassman et al., 2003; Lobell et al., 2009; Licker et al., 2010; Neumann et al., 2010; van Wart et al., 2013).”
Implications of accounting for land use in simulations of ecosystem carbon cycling in Africa (2013, neutral): “Large parts of Africa have the largest yield gaps in the world (Lobell et al., 2009; Licker et al., 2010).”