Impacts of monosodium glutamate industrial wastewater on plant growth and soil characteristics |
| |
| Authors: | Satnam Singh PD Rekha AB Arun Chiu-Chung Young |
| |
| Institution: | 1. Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, 250, Kuo Kuang Rd., Taichung, 402, Taiwan, ROC;2. Yenepoya Research Centre, Yenepoya University, Deralakatte, Mangalore, India;1. School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China;2. Shandong Provincial Engineering Centre on Environmental Science and Technology, 17923 Jingshi Road, Jinan 250061, China;1. School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China;2. Shandong Provincial Engineering Centre on Environmental Science and Technology, No. 17923 Jingshi Road, Jinan 250061, China;3. School of Biological Science and Technology, University of JINAN, West Road of Nan Xinzhuang, Jinan 250022, China;1. Botany Department, Faculty of Agriculture, Fayoum University, 63514, Fayoum, Egypt;2. Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza, Egypt;3. Cankiri Karatekin University, Kizilirmak Vocational High School, 18100, Cankiri, Turkey;1. Center of Analysis and Characterization, Cadi Ayyad University, Boulevard Moulay Abdellah, Marrakech, Morocco;2. Department of Biology, Faculty of Sciences Semlalia, P.O. Box 2390, 40 000, Marrakech, Morocco;3. Laboratoiry of Automatic for Environment and Transfer Processes, Department of Physiques, Faculty of Sciences – Semlalia, P.O. Box 2390, 40 000, Marrakech, Morocco;4. Department of Research and Innovation, Galanakis Laboratories, Skalidi 34, GR-73131, Chania, Greece |
| |
| Abstract: | Research into utilization of monosodium glutamate industrial wastewater (MSGW) as a plant nutrient source was undertaken. The physico-chemical and microbiological characteristics of MSGW were analyzed in detail. Effect of MSGW on early growth of Chinese cabbage (Brassica rapa L. cv. Pekinensis) and maize (Zea mays L. cv. Bright Jean) was tested by the seed germination bioassay. Subsequently, in a greenhouse pot experiment using the same plant species, effects of MSGW application rates on the plant biomass yield, nitrogen content and soil properties were analyzed. The MSGW was characterized by high levels of N (56.7 g l?1), organic C (344.6 g l?1), total solids (600 g l?1) and other minerals. At MSGW concentrations below 1%, germination indices for both the plant species were significantly (p < 0.01) higher than the control. Further, the greenhouse study results indicated significant increase in the plant biomass yield at MSGW application rates of 5000 and 7500 l ha?1. As the MSGW dose increased, the biomass yield decreased, decreasing the N-use efficiency. Maize showed significantly higher wastewater N-use efficiency compared to the Chinese cabbage. Although the total culturable bacterial and fungal counts in the raw MSGW were low, addition of MSGW to the soil increased the soil microbial activities and soil respiration. Soil organic C was also increased by the addition of MSGW, due to the presence of significant amounts of organic C in the wastewater. This preliminary study demonstrates that by proper management of the pH and optimization of application rate, MSGW can be utilized as a nutrient source for plant growth. Further long-term field studies to evaluate the environmental impact of MSGW usage in agriculture are being designed to reduce the environmental risks associated with the reuse of this underutilized wastewater in the agriculture. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
