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美国科学家最近发明了一种新的植物生长调节剂－－Ｐｒｏｘｙ。美国南伊利诺伊大学的一位专门研究草皮的专家说，Ｐｒｏｘｙ能够调节生长能量的平衡，使青草不往上长，而只往横向长，从而在整个夏天只需给草坪割草两次。这位专家还说，生长调节剂出现于８０年代。以前的...
American scientists recently invented a new plant growth regulator - Proxy. A specialist sod expert at Southern Illinois University in the United States said that Proxy regulates the balance of growth energy so that the grass does not grow but grows laterally, cutting the lawn twice this summer. The expert added that growth regulators appeared in the 1980s. Earlier...