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科技苑【20140818】看点介绍
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科技苑20140818集剧情：第20140818期
节目导视：你知道吗?植物长不好，原因是大棚土壤生病了，而且还病得不轻!rnrn 同期：大棚处于一个亚健康状态!它怎么就得病了?得的啥病?谁来给它治治病?rnrn 你知道吗?药方竟然是玉米。rnrn 那玉米怎样给大棚里的土壤治病呢?
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