July 8, 2015

Guest Commentary - Moving Matters: The Effect of Location on Crop Production

By Elizabeth Leake, InSTePP Communication Specialist, University of Minnesota 

In a recent study published in the March 2015 edition of The Journal of Economic History, Jason Beddow and Philip Pardey (University of Minnesota, InSTePP) challenge some long-standing notions about the past and future evolution of crop production by taking explicit account of agriculture’s geographically-shifting footprint.

When analyzing crop yields, economists have long emphasized commercially-marketed and managed inputs, such as fertilizer, machinery, irrigation, and crop genetics, without giving as much consideration to spatially-explicit policy, biological and environmental conditions such as soil type, sunlight, rainfall, temperature, pests, and diseases. By so doing, they risk misattributing sources of growth (to inputs) and overestimating the effects of technological advances and climate change.

Beddow and Pardey’s new insight was that common economic indexes could be adapted to assess the output consequences of shifting the location of crop production. They applied these spatial indexes to analyze US corn production data for 1879 to 2007, a 128 year period during which there was a notable north-westerly movement in where corn was produced—the average corn plant in 2007 was grown over 400 kilometers northwest of its 1879 ancestor. Strikingly, some 16-21 percent of the increased corn output over the period is attributable to that movement, and, implicitly, the corresponding changes in biology, technology, weather, and economics faced by corn farmers.

InSTePP researchers are now investigating whether similar patterns of movement are evident for other crops and regions. Preliminary results reported by Beddow and Pardey find that more recent movements in the location of sub-Saharan African corn production may have had the opposite effect: decreasing crop output. Notwithstanding, the study raises prospects for future changes in where crops are grown to increase global crop production and mitigate impacts of global climate change.  

About

The Global Food and Agriculture Program aims to inform the development of US policy on global agricultural development and food security by raising awareness and providing resources, information, and policy analysis to the US Administration, Congress, and interested experts and organizations.

The Global Food and Agriculture Program is housed within the Chicago Council on Global Affairs, an independent, nonpartisan organization that provides insight – and influences the public discourse – on critical global issues. The Council on Global Affairs convenes leading global voices and conducts independent research to bring clarity and offer solutions to challenges and opportunities across the globe. The Council is committed to engaging the public and raising global awareness of issues that transcend borders and transform how people, business, and governments engage the world.

Support for the Global Food and Agriculture Program is generously provided by the Bill & Melinda Gates Foundation.

Blogroll

1,000 Days Blog, 1,000 Days

Africa Can End Poverty, World Bank

Agrilinks Blog

Bread Blog, Bread for the World

Can We Feed the World Blog, Agriculture for Impact

Concern Blogs, Concern Worldwide

Institute Insights, Bread for the World Institute

End Poverty in South Asia, World Bank

Global Development Blog, Center for Global Development

The Global Food Banking Network

Harvest 2050, Global Harvest Initiative

The Hunger and Undernutrition Blog, Humanitas Global Development

International Food Policy Research Institute News, IFPRI

International Maize and Wheat Improvement Center Blog, CIMMYT

ONE Blog, ONE Campaign

One Acre Fund Blog, One Acre Fund

Overseas Development Institute Blog, Overseas Development Institute

Oxfam America Blog, Oxfam America

Preventing Postharvest Loss, ADM Institute

Sense & Sustainability Blog, Sense & Sustainability

WFP USA Blog, World Food Program USA

Archive


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Photo of the Week

Annette Kwamboka peels the husk off a cob of her mother's maize in Bugita, Kenya.







Commentary - Sharing Agricultural Success with President Obama

When I first got the idea back in 2008 that the women farmers like myself in central Senegal should join together to help one another succeed, I never would have guessed that five years later I would be sharing that story of success with the president of the United States. 


Commentary - Is Feed the Future delivering results? Yes – with some limitations.

Robai Nyongesa, a smallholder farmer in western Kenya, used to struggle to grow enough maize to feed her family. Last year, she was able to harvest 20 bags of maize from 1 acre of land, a fivefold increase over her previous poor harvests. Her large harvest enabled her to feed her three children, and to hire a tutor to give her children private lessons at home.



Photo of the Week

Farmers of the Faulu group in Bungoma South, Kenya, stand proudly in front of Beatrice Masila’s sorghum that has now grown taller than they are!



Call for Innovators: Bridging Dairy Data Gaps

Dairy, especially milk, can play an important role in providing essential nutrients to a woman of child-bearing age, a gestating or lactating mother, and children.