Featured Research

from universities, journals, and other organizations

Current global food production trajectory won't meet 2050 needs

Date:
June 19, 2013
Source:
University of Minnesota
Summary:
Crop yields worldwide are not increasing quickly enough to support estimated global needs in 2050, according to a new study.

Maps of observed rates of percent yield changes per year. show more Global map of current percentage rates of changes in (a) maize, (b) rice, (c) wheat, and (d) soybean yields. Red areas show where yields are declining whereas the fluorescent green areas show where rates of yield increase – if sustained – would double production by 2050.
Credit: Deepak K. Ray, Nathaniel D. Mueller, Paul C. West, Jonathan A. Foley. Yield Trends Are Insufficient to Double Global Crop Production by 2050. PLoS ONE, 2013; 8 (6): e66428 DOI: 10.1371/journal.pone.0066428

Crop yields worldwide are not increasing quickly enough to support estimated global needs in 2050, according to a study published June 19 in the open access journal PLOS ONE by research associate Deepak Ray and colleagues from the Institute on the Environment (IonE) at the University of Minnesota.

Previous studies estimate that global agricultural production may need to increase 60-110 percent to meet increasing demands and provide food security. In the current study, researchers assessed agricultural statistics from across the world and found that yields of four key crops -- maize, rice, wheat and soybean -- are increasing 0.9-1.6 percent every year. At these rates, production of these crops would likely increase 38-67 percent by 2050, rather than the estimated requirement of 60-110 percent. The top three countries that produce rice and wheat were found to have very low rates of increase in crop yields.

"Particularly troubling are places where population and food production trajectories are at substantial odds," Ray says, "for example, in Guatemala, where the corn-dependent population is growing at the same time corn productivity is declining."

The analysis maps global regions where yield improvements are on track to double production by 2050 and areas where investments must be targeted to increase yields. The authors explain that boosting crop yields is considered a preferred solution to meet demands, rather than clearing more land for agriculture. They note that additional strategies, such as reducing food waste and changing to plant-based diets, can also help reduce the large estimates for increased global demand for food.

"Clearly, the world faces a looming agricultural crisis, with yield increases insufficient to keep up with projected demands," says IonE director Jon Foley, a co-author on the study. "The good news is, opportunities exist to increase production through more efficient use of current arable lands and increased yield growth rates by spreading best management practices. If we are to boost production in these key crops to meet projected needs, we have no time to waste."


Story Source:

The above story is based on materials provided by University of Minnesota. Note: Materials may be edited for content and length.


Journal Reference:

  1. Deepak K. Ray, Nathaniel D. Mueller, Paul C. West, Jonathan A. Foley. Yield Trends Are Insufficient to Double Global Crop Production by 2050. PLoS ONE, 2013; 8 (6): e66428 DOI: 10.1371/journal.pone.0066428

Cite This Page:

University of Minnesota. "Current global food production trajectory won't meet 2050 needs." ScienceDaily. ScienceDaily, 19 June 2013. <www.sciencedaily.com/releases/2013/06/130619195135.htm>.
University of Minnesota. (2013, June 19). Current global food production trajectory won't meet 2050 needs. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2013/06/130619195135.htm
University of Minnesota. "Current global food production trajectory won't meet 2050 needs." ScienceDaily. www.sciencedaily.com/releases/2013/06/130619195135.htm (accessed July 31, 2014).

Share This




More Plants & Animals News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins