摘要
Corn,wheat,rice,soybean,cotton,rape seeds,alfalfa,and sugar beets are among the top agronomic crops grown around the world for food,fiber,feed,and fuel(4Fs).Huge progress has been made in increasing production of 4Fs over the last few decades.In 2018-2019,approximately 1.09 billion tons of corn,735 million tons of wheat,and 497 million tons of rice were produced worldwide.Increased food production has greatly helped to reduce global starvation and undernourished populations from 15%during 2000-2004 to 8.9%in 2019.