摘要
采用蚯蚓处理牛粪,并以不加蚯蚓的牛粪作为对照,分析了50 d内蚯蚓处理牛粪过程中的养分含量变化。结果表明,蚯蚓处理牛粪后,pH值降低,全氮、速效磷和速效钾含量均逐渐增加。研究结果说明,蚯蚓活动能提高牛粪中速效磷和速效钾的含量,增加氮素含量,从而提高了牛粪作为有机肥料的养分。
The earthworm was used to decompose the cattle dung, which has already piled as pre- treatment for 30 days, meanwhile, the cattle dung without adding earthworms was used as control treatment. The change of the fertilizer nutrient of cattle dung by the earthworm treatment in 50 days was analyzed. The results showed that the pH value decreased, and the total nitrogen, available phosphorus and potassium gradually increased in vermicomposting after the earthworm treatment. The results suggest that the earthworm growth could improve the contents of the available phosphorus and potassium in the cattle dung, and increase the content of nitrogen, which of course improve the nutrient contents of vermicomposting as organic fertilizer.
出处
《微量元素与健康研究》
CAS
2012年第3期1-3,共3页
Studies of Trace Elements and Health
关键词
蚯蚓
牛粪
废物处理
养分
earthworm
cattle dung
vermicomposting
nutrient
