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Bio-amelioration of alkali soils through agroforestry systems in central Indo-Gangetic plains of India

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Title Bio-amelioration of alkali soils through agroforestry systems in central Indo-Gangetic plains of India
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Creator Y.P.singh, Gurbachan Singh, D.K.Sharma
 
Subject agroforestry systems, alkali soils, biomass production, microbial biomass, soil amelioration
 
Description Not Available
A long-term field study was initiated during 1995 at Central
Soil Salinity Research Institute, Regional Research Station, Lucknow
(26°47′58′′ N and 80°46′24′′ E) to analyze the effect of agroforestry
systems on amelioration of alkali soils. Three agroforestry systems (pastoral,
silvipastoral and silvicultural) were compared with the control
where no agroforestry system was introduced. Tree-based silvicultural
and silvipastoral systems were characterized by tree species Prosopis
juliflora and Acacia nilotica along with grass species Leptochloa fusca,
Panicum maximum, Trifolium alexandrium and Chloris gayana. Growth
of ten-year-old Prosopis juliflora and Acacia nilotica planted in combination
with grasses was significantly higher over the silviculture system
with the same species. Tree biomass yields of P. juliflora (77.20 t⋅ha-1)
and A. nilotica (63.20 t⋅ha-1) planted under silvipastoral system were
significantly higher than the sole plantation of (64.50 t⋅ha-1 and 52.75
t⋅ha-1). Fodder yield under the pastoral system was significantly higher
than the silvipastoral system during initial years but it was at par with
that of silvipastoral systems after eight years of plantation. The microbial
biomass carbon in the soils of silvipastoral systems was significantly
higher than in soils under sole plantation of trees and control systems.
The Prosopis-based silvipastoral system proved more effective in reducing
soil pH, displacing Na+ from the exchange complex, increasing organic
carbon and available N, P and K. Improvement in soil physical
properties such as bulk density, porosity, soil moisture and infiltration
rate was higher in the Prosopis-based silvipastoral system than in the
silviculture system or control. On the basis of biomass production and
improvement in soil health due to tree + grass systems, silvipastoral
agroforestry system could be adopted for sustainable reclamation highly alkali soils.
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Date 2018-09-22T11:01:14Z
2018-09-22T11:01:14Z
2014
 
Type Article
 
Identifier Singh et al.,2014.Bio-amelioration of alkali soils through agroforestry systems in central Indo-Gangetic plains of India.Journal of Forestry Research (2014) 25(4): 887−896
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http://krishi.icar.gov.in/jspui/handle/123456789/7179
 
Language English
 
Relation Not Available;
 
Publisher Springer