Manure from about 1,000 cows goes in one end and then, controlled decomposition yields methane gas at the other.

VOA: standard.2010.02.23

And many farmers growing GE crops have seen economic benefits like higher yields,lower costs, and more flexibility than their conventional-farming counterparts.

VOA: standard.2010.04.15

On his 95th birthday, he told VOA that the work to improve crop yields must continue.

VOA: standard.2009.09.16

Australia is a major food exporter, and if drought dramatically cuts yields, that could cause global prices for grain,meat and other foods to rise.

VOA: standard.2009.09.03

Too little means lower yields and lower profits. Too much wastes money and causes pollution.

VOA: standard.2010.07.28

Studies say rising temperatures will melt glaciers on the high Himalayas, cause devastating floods,heatwaves, and make monsoon rains more erratic, resulting in smaller farm yields.

VOA: standard.2009.11.27