So producing the world ' s current agricultural output organically would require several times as much land as is currently cultivated 因此，目前全球农业总产量如果都来自有机生产方式，那么所需耕地面积将是现有面积的数倍之多。
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Many scientists believe biotech could raise overall crop productivity in developing countries as much as 25 % and help prevent the loss of those crops after they are harvested 许多科学家认为，生物技术能够把发展中国家的农业总产量提高25 ，并且帮助防止作物收割后遭受损失。
