珠三角就是当地蚕丝出产地啊。他们的魚塘围基种桑树，桑宝宝的宝贝粪喂魚，魚塘的泥肥又回去养桑树-循环。

来源: Sequoia_CA 于 2025-10-27 14:34:07 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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