Improvement of salinity in sewage sludge compost prior to its utilization as nursery substrate
文献类型：EI期刊论文
| 作者 | Liu Hong-Tao; Zheng Guo-Di; Chen Tong-Bin; Gao Ding |
| 发表日期 | 2014 |
| 关键词 | Composting Cultivation Fertilizers Mixing Saline water Salts Seed Sewage sludge Substrates |
| 英文摘要 | Soluble salts are enriched in sewage sludge compost because of their inherent derivation. Accordingly, the content of soluble salt in sludge compost is usually much higher than most seedlings can tolerate. To determine whether sludge compost is suitable for use as a nursery substrate, some experiments were conducted. Reduction of the electrical conductivity (EC) value could improve seed germination in saturated extract from sludge compost. In addition, water elution and mixing dilution with raw soil were all shown to be able to alleviate saline inhibition on seed germination and seedling growth, including stem diameter, seedling height, and above-ground weight. Overall, salinity is a crucial problem when sewage sludge compost is reused as a nursery substrate, and some effective and convenient approaches to reduce salt should be served prior to its reuse. Sewage sludge after being composted is usually reused as organic fertilizer or plant substrate. However, salt is the main problem during its reclamation. What is the highest salt level the seedling can tolerate? Which types of salts are effective in salinity of sludge-amended substrate? Meanwhile, can the salinity be reduced through water elution or soil mixing dilution? This paper is the first to investigate the salinity and its reduction of sewage sludge compost prior to its use in the development of nursery substrate. 2014 AWMA. |
| 出处 | Journal of the Air and Waste Management Association
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| 卷 | 64期:5页:546-551 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/31321]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Liu Hong-Tao,Zheng Guo-Di,Chen Tong-Bin,et al. Improvement of salinity in sewage sludge compost prior to its utilization as nursery substrate. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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