文章基本信息

标题：Remediation of Phytotoxic Effect of Chromium by Different Amendments in Rice-Wheat Sequence
本地全文：下载
作者：J. K. Parmar ; K. P. Patel
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2015
卷号：14
期号：1
语种：English
出版社：Technoscience Publications
摘要：A pot-house experiment was carried out at Micronutrient Project, AAU, Anand to study the effect of Crlevels (0, 10, 20, 40, 80 and 160 mg/kg soil) in presence and absence of amendments (FYM andgypsum) on rice and wheat under rice-wheat sequences on coarse loamy soil with three replicationsunder factorial completely randomized block design. The experimental results indicated the rice grainyield gradually decreased due to direct effect of Cr while residual effect was found beneficial up toCr20 which improved grain yield of wheat by 15.09 per cent over control. Similarly, rice and wheatgrain as well as straw yield were also found enhanced due to direct and residual effect of FYM andgypsum over their corresponding control. The Cr content in grain and straw of rice and wheatsignificantly increased with increase in Cr levels due to both direct and residual effect of Cr. Thehighest Cr content was recorded in straw followed by grain in both the crops. The application of farmyard manure (FYM) and gypsum significantly decreased Cr content of rice and wheat grain and strawdue to direct and residual effect. The direct and residual effect of gypsum and FYM decreased Crcontent of rice grain by 21.31 and 28.30 per cent over corresponding control. The Cr applicationincreased DTPA-Cr of the soil due to direct and residual effect after rice and wheat. The application ofamendments significantly decreased DTPA-Cr in the soil after both rice and wheat in the soil overcontrol. The findings, in general, indicated that the toxic effect of Cr on crop could be mitigated moreeffectively with FYM application and reduce risk of health hazards for human beings and animals.However, the regular monitoring for soil quality is necessary for managing Cr pollution in the soil.