猪粪污养殖水蚯蚓试验分析
Jiangxi Journal of Animal Husbandry & Veterinary Medicine(2019)
Abstract
采用田间试验方法,研究了利用猪粪污养殖水蚯蚓过程中水蚯蚓产量、水蚯蚓粉中重金属含量及水蚯蚓培育池表层土壤成分变化.结果 显示,水蚯蚓养殖周期中每亩水蚯蚓产量约1 890kg,水蚯蚓粉中铜、锌、镉和铅等重金属含量均符合国家标准中的饲料规定含量,培育池表层土壤中氮、磷、钾和铜的含量基本稳定,但锌含量逐渐上升.
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