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Long-term effect of fertilization on soil chemical and biological characteristics and productivity under sorghum (Sorghum bicolor)–wheat (Triticum aestivum) system in Vertisol

Indian Agricultural Research Journals

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Title Long-term effect of fertilization on soil chemical and biological characteristics and productivity under sorghum (Sorghum bicolor)–wheat (Triticum aestivum) system in Vertisol
 
Creator KATKAR, R N
SONUNE, B A
KADU, P R
 
Subject Dehydrogenase activity; Long-term; Soil fertility; Soil microbial biomass carbon and nitrogen
 
Description An experiment was undertaken during 2007–08 to study the effect of long-term fertilization and manuring on soil chemical and biological properties in Vertisol. The dynamics of soil characteristics was studied in the on-going longterm fertilizer experiment initiated in rainy (kharif) season 1988 at Akola, Maharashtra comprised 12 treatments including NPK levels with and without FYM, sulphur and zinc replicated four times in randomised block design. The manure and mineral fertilizers were given to sorghum [Sorghum bicolor (L.) Moench] crop every year and only mineral fertilizers were applied to succeeding wheat (Triticum aestivum L. emend Fiori & Paol). Soil samples from all the treatments were collected from 0–20 cm depth. The chemical and biological soil characteristics were studied. Significantly highest increase in soil organic carbon and total nitrogen were recorded with 100% NPK + FYM @10 tonnes/ha. The availability of N, P, K, S, soil microbial biomass carbon and nitrogen, dehydrogenase assay and productivity of sorghum and wheat were significantly increased with the integrated application of organic manure (FYM @ 10 tonnes/ha) and mineral fertilizer (100% NPK) over control and other fertilizer treatments after 20 years of experimentation. Highly significant positive correlation of total productivity was observed with available K, N, and P, whereas moderately positive significant correlation was observed with organic carbon, total nitrogen and biological parameters.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-08-03
 
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/8437
 
Source The Indian Journal of Agricultural Sciences; Vol 81, No 8 (2011)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/8437/3396
 
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