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Utilization of Municipal Solid Waste Compost in Reclamation of Saline-sodic Soil Irrigated with Poor Quality Water

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Title Utilization of Municipal Solid Waste Compost in Reclamation of Saline-sodic Soil Irrigated with Poor Quality Water
Not Available
 
Creator Parul Sundha*, Nirmalendu Basak, Arvind Kumar Rai, Rajender Kumar Yadav and Dinesh Kumar Sharma
 
Subject Gypsum, saline-sodic soil, municipal solid waste compost, sodium absorption ratio, reclamation efficiency
 
Description Not Available
Salinity and sodicity are the major stresses in soils of arid and semi-arid regions. These regions often face
rainfall shortage and groundwater contains excess salts with variable sodium adsorption ratio (SAR).
Therefore, a laboratory experiment was conducted to investigate the impact of municipal solid waste
compost (MSWC) in reclamation of saline-sodic soil with pH, electrical conductivity (EC) and exchangeable
sodium per cent of 10.7, 3.09 dS m-1 and 70.3, respectively. Soil with gypsum (25 and 50% of gypsum
requirement, GR) and its combination with 10 and 20 t ha-1 of farmyard manure (FYM), MSWC of Karnal
(KC) and Delhi (DC) were incubated at 60% field capacity. After 30 days of incubation, a soil columnleaching
experiment was carried out with treated and control soil. Columns were sequentially leached up to
ten pore volumes using water of SAR 5 and 15 with constant electrolyte concentration (60 me L-1). Nature,
amount and independent integration of amendments had positive influence on lowering of soil pH and EC.
The GR25DC (20 t ha-1) treated soil showed maximum decrease for both soil pH and EC irrespective of
SAR of water. Further, soil reclamation efficiency (based on losses of cation mass) increased with application
of organic amendment rates (20 t ha-1) in conjunction with GR25 compared to non amended soil/ GR25 +
lower doses of organic amendment. Quality and purity of agricultural grade gypsum is issue, therefore
GR25 and 20 t ha-1 MSWC can be advocated for reducing alkalinity and salinity stress of soil under use of
poor quality water.
Not Available
 
Date 2018-09-13T19:09:47Z
2018-09-13T19:09:47Z
2018-03-01
 
Type Research Paper
 
Identifier Not Available
0019-638X
http://krishi.icar.gov.in/jspui/handle/123456789/6761
 
Language English
 
Relation Not Available;
 
Publisher Indian Society of Soil Science