Tue, 05 Jul 2022

BEIJING, Feb. 10 (Xinhua) -- Chinese researchers have discovered that halving ozone dose could increase wheat yields by more than 20 percent, the Science and Technology Daily reported Thursday.

The climbing concentration of surface ozone pollution hinders crop growth and reduces yields, according to the report.

The researchers from the Nanjing University of Information Science and Technology worked in cooperation with nine other institutions to assess the relative yield loss in rice, wheat and maize due to ozone, by combining the ozone elevation experiments across Asia and air monitoring at about 3,000 locations in China, Japan and the Republic of Korea.

They found that the total ozone-induced annual loss of crop production is estimated at 63 billion U.S. dollars in East Asia, according to a recent research article published in the journal Nature Food.

More specifically, the yields of wheat, rice and maize could be improved by 21 percent, 10 percent and 4 percent respectively in China, if the ozone were reduced half with emission reduction measures.

The researchers suggested taking mitigation action for ozone emission control and adaptive agronomic measures against the rising surface ozone levels across East Asia.

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