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随着人们对农田大量地增施化肥、农药等，使土壤遭到了严重破坏，不仅农作物的产量得不到大幅度地提高，且生产的农产品中还残留了农药等有害物质。世界各国的人们都一直在寻找既能改善土壤状况、又不造成污染的有效办法。近日，来自法国、印度的科学家在北京向人们介绍了他们
As people increase fertilizers and pesticides on farmland in large numbers, the soil has been severely damaged. Not only the yield of crops has not been greatly increased, but harmful substances such as pesticides still remain in the agricultural products produced. People from all over the world are always looking for effective ways to improve soil conditions without causing pollution. Recently, scientists from France and India introduced them to people in Beijing