China: Researchers warnings on nitrogen fertilizer overusage

Recently it has been reported that agriculture is the largest polluter in China and it has been advised that chemical fertilizers consumption should be halved.  China, the world’s largest  fertilizers consumer and top grain producer, increased since the 1960s by more than eight-fold its total grain output, but its nitrogen fertilizers consumption surged by some 55 times. Researchers found that the Chinese farmers, particularly in northern China, used 40 percent more fertilizers than crops needed, resulting in some 10 million tonnes of fertilizer every year being discharged into water, polluting China’s rivers and lakes.  [Published on July 2010]


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