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Effect of Sewage Sludge–Coirpith Pellets on Dry Matter Yield and Trace Metal Concentration in Various Plant Parts of Forage Maize

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Title Effect of Sewage Sludge–Coirpith Pellets on Dry Matter Yield and Trace Metal Concentration in Various Plant Parts of Forage Maize
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Creator J Somasundaram, R Krishnasamy, P Savithri, M Vassanda Coumar, V Arun Kumar, B Satish Kumar, R Indirani, S Maragatham, S Mahimairaja, T Chitdeswari, K Sivasubramanium
 
Subject Sewage sludge, coir pith, pelletization, trace metals, forage maize, fractions of trace metals
 
Description Not Available
Sewage sludge (SS), a highly heterogeneous semisolid fraction of sewage water (about 1% of the sewage water), contains various amounts of nitrogen (N) and phosphorus (P) as well as trace elements such as cadmium (Cd), lead (Pb), copper (Cu), nickel (Ni) and zinc (Zn) with extremely variable physical and chemical compositions. Application of SS improves soil properties, increases yield and simultaneously increases trace metal content in soil and plants. The difficulty in handling, transporting and applying SS and its adverse effect, especially trace metal content in soil and plant, can be overcome by SS–coir pith pelletization (SSCP) or mixing with sewage sledge–coir pith mixture (SSCM). A study was undertaken to evaluate the prepared SSCM and SSCP (1:1 ratio of SS and coir pith) along with SS on dry matter yield, trace metal content in soil and plant parts. The results showed that increased rates of application of SS or SSCM or SSCP increased the green and dry fodder yield of forage maize. Application of SS as either SSCM or SSCP at 1.2 and 2.4 g pot−1 significantly reduced the trace metal content diethylene triamine pentaacetic acid (DTPA extractable) in soil and plant parts (leaves steam and root) compared to SS application. Therefore, in order to reduce the bioavailability of trace metal in soil and its uptake by plant, application of SSCM or SSCP at 1.2 or 2.4 g pot−1 proved to be a better option than SS application
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Date 2019-12-02T05:48:16Z
2019-12-02T05:48:16Z
2016-05-01
 
Type Research Paper
 
Identifier 2
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http://krishi.icar.gov.in/jspui/handle/123456789/26199
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis