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Effect of indigenous land - use systems on nutrient availability in hilly terrain Alfisols of Meghalaya

Indian Agricultural Research Journals

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Title Effect of indigenous land - use systems on nutrient availability in hilly terrain Alfisols of Meghalaya
 
Creator Singh, B P
Das, Madhumita
Prasad, R N
 
Subject —
 
Description An experiment was conducted during pre- and post-monsoon seasons of 1990 to study the effect of field crops, tree crops and dairy-based land-use systems on soil-fertility status in Ri-Bhoi and Ri-War areas of Meghalaya. The exchangeable Ca2+ +, AI3+, K+, Bray's P2+-P, fulvic and humic carhon conlents in the top soil (0 20 cm depth) were greatly influenced by these systems but the magnitude differed from one land use to  another. The lowest organic carbon and the maximum AI3+ contents were found in cereal-based land use, whereas the maximum accumulation of organic carbon in conjunction with complete disappearancce of AI3+ was observed under dairy farming within 15 years of adoption, Apparently, AI3+ content greatly increased in subsoil due to less quantity of organic carbon and excnangeable Ca level, A positive and highly significant correlation was detected between organic carbon and Ca2+ (r = 0.74**), humic carbon (r= 0.75**) fulvic carbon (r = 0.74**) and Bray's P2+-P (r = 0.85**). The soil pH showed a positive association with Ca2+(r= 0.73**) but an inverse relationship with AI3+ (r = 0.91**). The overall sustainability in restoration and maintenance of soil ferlity followed the trend: dairy farming> tree-based land use> cereal-based cropping. Thus dairy- and tree-based land Uses showed self-sustainable systems for soil productivity through effective recycling mechanism, as these are well maintained in complete absence of chemical fertilizers and amcliorative on sloping-land conditions.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-06-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19067
 
Source The Indian Journal of Agricultural Sciences; Vol 65, No 9 (1995)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19067/9416
 
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