Record Details

Soil fertility and productivity in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system as influenced by sunnhemp (Crotalaria juncea) green manuring

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Soil fertility and productivity in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system as influenced by sunnhemp (Crotalaria juncea) green manuring
 
Creator Mahapatra, B S
Kumar, Ajay
Misra, Alabhya
Kumar, Rajeev
Pareek, R P
 
Subject Cropping sequence productivity; Crotalaria; Nitrogen uptake; Organic carbon; Nitrogen
 
Description A field experiment was conducted during 2001-2002 and 2002-2003 on Mollisols of the university at Pantnagar, to study the effect of green manuring involving 4 genotytpes of sunnhemp (Crotularia juncea L.) on the biomass production, total productivity, nutrient removal in rice (Oryza sativa L.)-wheat (Triticum aestivum L. emend. Fiori & Paol.) system as well as changes in available nitrogen, total nitrogen, 6 N hydrolysable nitrogen and organic carbon content in soil. Among sunnhemp genotypes 'NDAUT (C) 2' recorded highest number of root nodules (29.8 /plant), and their fresh weight (449 mg/plant). The fresh and dry biomass accumulation by 'NDUAT (C) 2' genotype was highest compared with the other genotypes. Its incorporation as green manure gave higher grain yield in rice-wheat sequence (ie 3647 kg/ha of rice and 1569 kg/ha of wheat). Nitrogen uptake was higher owing to green manure application as compared to control, green manuring of 'NDUAT (C) 2' recorded highest N uptake of grain + straw (66.82 kg/ha in rice and 31.95 kg/ha in wheat) among sunnhemp genotypes. The organic carbon content in soil due to green manure incorporation was increased at the end of two year cropping sequence. 'PAU (C) 1 ' green manuring (0.730% organic carbon) resulted in 15.5% increase in organic carbon content over the control (0.632% organic carbon). Available N also increased in soil due to green manuring when compared to control. The 6N hydrolysable nitrogen was also higher in green manured plots compared with the control.
 
Publisher The Indian Journal of Agricultural Sciences
 
Date 2005-10-05
 
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/9184
 
Source The Indian Journal of Agricultural Sciences; Vol 75, No 10 (2005)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/9184/3916
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences