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Influence of Amendments and Flooding with Saline and Non-Saline Water on Changes in Physico-Chemical Characteristics of a Sodic Soil

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Title Influence of Amendments and Flooding with Saline and Non-Saline Water on Changes in Physico-Chemical Characteristics of a Sodic Soil
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Creator S.K. Dubey
Y.P. Singh
V.K. Sharma
Anand Swarup
 
Subject sodic soil, farmyard manure, saline irrigation water, iron and manganese availability, reclamation, gypsum, pyrite
 
Description Not Available
Laboratory experiments were conducted with a highly sodic soil (pH, 10.6, exchangeable
sodium percentage(ESP) 96) to evaluate the effect of amendments viz. gypsum @ 50% gypsum
requirements (GR), gypsum @ 100% GR, pyrite equivalent to 50% of GR on sulphur (S) basis,
pyrite equivalent to 100% of GR on S basis, farm yard manure (FYM) @ 1%, gypsum @ 50% of
GR + FYM @ 1%, gypsum @ 100% of GR + FYM @ 1%, pyrite @ 50% of GR on S basis + FYM @ 1%,
Pyrite @ 100% of GR on S basis + FYM @ 1% and a control (no amendment) with saline (ECiw 4
dSm 1) and non saline (EC 0.4 dSm 1) irrigation water on the temporal changes in pH, EC, ESP,
exchangeable Ca+Mg, Fe2+ and Mn2+ of the soil. With increase in the incubation period after
flooding pH and ESP decreased, whereas EC, Fe2+, Mn2+ and exchangeable Ca + Mg were
increased following amendment applications. FYM alone and/or in combination with gypsum
and pyrite brought about conspicuous increase in Fe2+and Mn2+, the effects being more
pronounced with saline water as compared to non saline water. FYM also proved effective in
enhancing the efficiency of gypsum and pyrite for the reclamation of sodic soils.
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Date 2020-02-25T10:57:40Z
2020-02-25T10:57:40Z
2012-06-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/33074
 
Language English
 
Relation Not Available;
 
Publisher Not Available