美能生物科技 发表于 2013-9-6 16:25:57

智能氮肥

智能氮肥http://www.nongzi100.com/data/attachment/forum/201309/06/155836uwvw73ut22t7i2qi.jpghttp://www.nongzi100.com/data/attachment/forum/201309/06/155836uwvw73ut22t7i2qi.jpg
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