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为什么越用除草剂杂草就越多?
(来源:MIT TR)七月的一个早晨,我在伊利诺伊大学南部农场的旧农学种子屋外遇见了杂草防控专家 Aaron Hager。远处是 20 世纪初建造的圆形谷仓,旨在抵御中西部的风暴。当时一个数百英里宽的风暴席卷而来,伴随每小时 80 ...
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