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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Rehman, Muhammad Zia-Ur Rizwan, Muhammad Ali, Shafaqat Fatima, Nida Yousaf, Balal Naeem, Asif Sabir, Muhammad Ahmad, Hamaad Raza Ok, Yong Sik |
| Description | Country affiliation: Pakistan Author Affiliation: Rehman MZ ( Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan.); Rizwan M ( Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan. Electronic address: mrazi1532@yahoo.com.); Ali S ( Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan.); Fatima N ( Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan.); Yousaf B ( Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan); Naeem A ( Soil Science Division, Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan.); Sabir M ( Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan.); Ahmad HR ( Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan.); Ok YS ( Korea Biochar Research Centre and Department of Biological Environment, Kangwon National University, Chuncheon 200-701, Republic of Korea.) |
| Abstract | Nickel (Ni) toxicity in agricultural crops is a widespread problem while little is known about the role of biochar (BC) and other organic amendments like farm manure (FM) from cattle farm and compost (Cmp) on its alleviation. A greenhouse experiment was conducted to evaluate the effects of BC, Cmp and FM on physiological and biochemical characteristics of maize (Zea mays L.) under Ni stress. Maize was grown in Ni spiked soil without and with two rates of the amendments (equivalent to 1% and 2% organic carbon, OC) applied separately to the soil. After harvest, plant height, root length, dry weight, chlorophyll contents, gas exchange characteristics and trace elements in plants were determined. In addition, post-harvest soil characteristics like pHs, ECe and bioavailable Ni were also determined. Compared to the control, all of the amendments increased plant height, root length, shoot and root dry weight with the maximum increase in all parameters by FM (2% OC) treatment. Similarly, total chlorophyll contents and gas exchange characteristics significantly increased with the application of amendments being maximum with FM (2% OC) application. Amendments significantly increased copper, zinc, manganese and iron concentrations and decreased Ni concentrations in the plants. The highest reduction in shoot Ni concentration was recorded with FM (2% OC) followed by BC (2% OC) being 73.2% and 61.1% lower compared to the control, respectively. The maximum increase in soil pH and decrease in AB-DTPA extractable Ni was recorded with BC (2% OC) followed by FM (2% OC). It is concluded that FM (2% OC) was the most effective in reducing Ni toxicity to plants by reducing Ni uptake while BC (2% OC) was the most effective in decreasing bioavailable Ni in the soil through increasing soil pH. However, long-term field studies are needed to evaluate the effects of these amendments in reducing Ni toxicity in plants. |
| File Format | HTM / HTML |
| ISSN | 01476513 |
| Journal | Ecotoxicology and Environmental Safety |
| Volume Number | 133 |
| e-ISSN | 10902414 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-11-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pollution Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health |
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