There existed a common assumption that chemicals were the best way to attain higher yields in conventional agriculture. But these chemicals tend to accumulate in the soil and underground water£¬ and affect the crops and£¬in turn£¬ the animals and humans who digest them.

How to tackle this issue£¿ Scientists are convinced that the answer lies in agricultural technology. Theydevote themselves to generating seeds with superb characteristics£¬ which can reduce risks of pest and boost output greatly. In the meantime£¬ more farmers have turned to organic farming. They entirely avoid the use of chemical pesticides and fertilisers so that the products have betterflavour and comprise richer nutrition£¬ for instance£¬ essential minerals. We hope that with scientists’ intense efforts and the widespread application of agricultural technology£¬ farmers can have more alternatives.