Why crop yields in developing countries have not kept pace with advances in agronomy

George, Thomas

doi:10.1016/j.gfs.2013.10.002

Cited by 79 publications

(48 citation statements)

References 43 publications

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“…Responding to effects of climate change (for example, changes in nutrient availability and plant nutrient acquisition, higher CO 2 concentrations and temperatures, water deficits and flooding) that influence the closure of the yield gap between potential and actual production will require continuation of existing 'best management practices' coupled with improvements in agronomic management practices and crop-breeding [58,59]. Uncertain is the degree to which advances in crop physiology and genetics will continue to support higher agricultural production in response to more frequent climate shocks.…”

Section: Crop Physiology and Genetics Under Climate Changementioning

confidence: 99%

“…Future food security will continue to rely on N fertilizer inputs, but cropping systems must achieve yield potential (that is, close the yield gap) while minimizing tradeoffs in air, water and soil quality [58,59]. The long-term ramifications of N-related GHG emissions; off-site movement of N on eutrophication, acidification and pollution of aquatic and terrestrial ecosystems; and human health problems have led to a recommendation that anthropogenic inputs of reactive N to terrestrial ecosystems be reduced by up to one-fourth of present quantities, or about 35 million tonnes of N per year [112].…”

Section: Livestock Management and Animal Healthmentioning

confidence: 99%

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Climate-smart agriculture global research agenda: scientific basis for action

et al. 2014

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Background: Climate-smart agriculture (CSA) addresses the challenge of meeting the growing demand for food, fibre and fuel, despite the changing climate and fewer opportunities for agricultural expansion on additional lands. CSA focuses on contributing to economic development, poverty reduction and food security; maintaining and enhancing the productivity and resilience of natural and agricultural ecosystem functions, thus building natural capital; and reducing trade-offs involved in meeting these goals. Current gaps in knowledge, work within CSA, and agendas for interdisciplinary research and science-based actions identified at the 2013 Global Science Conference on Climate-Smart Agriculture (Davis, CA, USA) are described here within three themes: (1) farm and food systems, (2) landscape and regional issues and (3) institutional and policy aspects. The first two themes comprise crop physiology and genetics, mitigation and adaptation for livestock and agriculture, barriers to adoption of CSA practices, climate risk management and energy and biofuels (theme 1); and modelling adaptation and uncertainty, achieving multifunctionality, food and fishery systems, forest biodiversity and ecosystem services, rural migration from climate change and metrics (theme 2). Theme 3 comprises designing research that bridges disciplines, integrating stakeholder input to directly link science, action and governance.

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Section: Crop Physiology and Genetics Under Climate Changementioning

confidence: 99%

Section: Livestock Management and Animal Healthmentioning

confidence: 99%

Climate-smart agriculture global research agenda: scientific basis for action

et al. 2014

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“…Reductions in the yield gaps will typically require higher and more efficient input use (fertilizers, pesticides, and water) and improvements in crop management (Evans and Fischer, 1999). Moreover, to decrease yield gaps necessitate investments in infrastructure, education and agronomic research, as well as supportive agricultural policies (Neumann et al, 2010;Tilman et al, 2011;George, 2014).…”

Section: Introductionmentioning

confidence: 99%

The potential of Russia to increase its wheat production through cropland expansion and intensification

Schierhorn

Müller

Prishchepov

et al. 2014

Global Food Security

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a b s t r a c tRussia is a major player in the global wheat market, but extensive unused land resources and large yield gaps suggest that wheat production can be substantially increased. We combined time series of cultivated cropland, abandoned cropland and yield gap estimates to assess the potential production of wheat in European Russia. Current wheat production is constrained by volatile inter-annual precipitation patterns and low applications of nitrogen fertilizers. We demonstrate that modest increases in the crop productivity and the recultivation of the recently abandoned croplands could increase wheat production by 9-32 million tons under rainfed conditions. Increases in the wheat yields, particularly within the fertile black soil belt in southern European Russia, will contribute the major share of the prospective production increases. Frequently recurring droughts, likely exacerbated by future climate change, and adverse market conditions jeopardize the exploitation of the production potentials. Improved adaptation to the volatile climate conditions and substantial institutional and political reforms in the agricultural sector are necessary to leverage the agricultural production potential of Russia.

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“…These two modeling exercises would bracket the results of the optimization exercise. The third step would attempt to take into account Bangladeshi farmers' cultural norms, perceived risks, rates of returns, uncertainties, and opportunity sets [31,32]. This work is now under way.…”

Section: Nutrient Requirements Intakes and Intake Adequacies Of Banmentioning

confidence: 99%

Food Crop Production, Nutrient Availability, and Nutrient Intakes in Bangladesh: Exploring the Agriculture—Nutrition Nexus with the 2010 Household Income and Expenditure Survey

Fiedler¹

2014

Food Nutr Bull

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Why crop yields in developing countries have not kept pace with advances in agronomy

Cited by 79 publications

References 43 publications

Climate-smart agriculture global research agenda: scientific basis for action

Climate-smart agriculture global research agenda: scientific basis for action

The potential of Russia to increase its wheat production through cropland expansion and intensification

Food Crop Production, Nutrient Availability, and Nutrient Intakes in Bangladesh: Exploring the Agriculture—Nutrition Nexus with the 2010 Household Income and Expenditure Survey

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