現在是市場經濟，自己種糧成本高於進口，就不種了，很是危險。再說幾十年的化肥農藥施用，土地已經退化。

來源: XYZ94538 於 2020-05-09 10:02:30 [舊帖] [給我悄悄話] 本文已被閱讀：次

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