Yongjie Wei1, Yangsheng Liu. 1. The Key Laboratory for Water and Sediment Science, Ministry of Education, College of Environmental Sciences, Department of Environmental Engineering, Peking University, Beijing 100871, China.
Abstract
Composted sewage sludge can be applied to cropland to supply nutrients and improve soil physical properties. However, farmers are much concerned about heavy metal accumulation in cropland and heavy metal availability for crops. A 3-year field study was carried out in this study to investigate the effects of sewage sludge compost (SSC) application on the heavy metal accumulation in cropland soil, rapeseed germination and plumelet development, and yields of barley and Chinese cabbage, compared with conventional mineral fertilization. In addition, the availability of heavy metals for barley and Chinese cabbage was examined. Experimental results showed that SSC application produced little effects on rapeseed germination and stimulated the rape plumelet development at lower application rates (<150 ton ha(-1)). Heavy metals (Cu and Zn) were accumulated in the topsoil (0-20 cm), the barley grains and the cabbage leaves. The yields of barley and Chinese cabbage generated positive response to the SSC application. Addition of mineral N-P-K fertilizers into SSC could further increase the crop yield. Considering the heavy metals accumulation in cropland soil and their availability for crops, SSC should be applied to cropland at a limited application rate (<150 ton ha(-1)).
Composted sewage sludge can be applied to cropland to supply nutrients and improve soil physical properties. However, farmers are much concerned about heavy metal acn>an class="Chemical">cumulation in cropland and heavy metal availability for crops. A 3-year field study was carried out in this study to investigate the effects of sewage sludge compost (SSC) application on the heavy metal accumulation in cropland soil, rapeseed germination and plumelet development, and yields of barley and Chinese cabbage, compared with conventional mineral fertilization. In addition, the availability of heavy metals for barley and Chinese cabbage was examined. Experimental results showed that SSC application produced little effects on rapeseed germination and stimulated the rape plumelet development at lower application rates (<150 ton ha(-1)). Heavy metals (Cu and Zn) were accumulated in the topsoil (0-20 cm), the barley grains and the cabbage leaves. The yields of barley and Chinese cabbage generated positive response to the SSC application. Addition of mineral N-P-K fertilizers into SSC could further increase the crop yield. Considering the heavy metals accumulation in cropland soil and their availability for crops, SSC should be applied to cropland at a limited application rate (<150 ton ha(-1)).
Authors: Ebrahem M Eid; Sulaiman A Alrumman; Ahmed F El-Bebany; Khaled F Fawy; Mostafa A Taher; Abd El-Latif Hesham; Gamal A El-Shaboury; Mohamed T Ahmed Journal: Environ Sci Pollut Res Int Date: 2018-11-07 Impact factor: 4.223
Authors: Mohammad Ghorbani; Petr Konvalina; Anna Walkiewicz; Reinhard W Neugschwandtner; Marek Kopecký; Kazem Zamanian; Wei-Hsin Chen; Daniel Bucur Journal: Int J Environ Res Public Health Date: 2022-10-10 Impact factor: 4.614
Authors: Huayong Zhang; Yanli Xu; Yonglan Tian; Lei Zheng; He Hao; Hai Huang Journal: Int J Environ Res Public Health Date: 2019-10-23 Impact factor: 3.390