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Uptake of nitrogen, phosphorus, potassium and sulphur by rice (Oryza sativa) and sunflower (Helianthus annuus)

Indian Agricultural Research Journals

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Title Uptake of nitrogen, phosphorus, potassium and sulphur by rice (Oryza sativa) and sunflower (Helianthus annuus)
 
Creator SHARANAPPA, SHARANAPPA
SHIVARAJ, B
 
Subject nutrient uptake, rice-sunflower sequence, green-mannure
 
Description A field experiment was conducted during 1989-91 at Bangalore. There were 7 early rainy-season crop treatmentsand a fallow. Among the treatments Sesbania rostrata green-manure-rice (Oryza sativa L.) -sunflower (Helianthus annuus) sequence'had the highest uptake'of N, P, K and S, followed by sunnhemp (Crotalaria juncea L.) rice-sunflower. The organic carbon content and available N, P and K status of the soil increased signitlcantly with Sesbania rostrata followed by sunnhemp green-manurt. Rice-sunfloWer sequence following fodder maize (Zea mays L.) had the lowest N, P, K and S uptake as well as the lowest organic carbon and available N, P, K and S status of soil at the end of second cycle of sequence crops, followed by fallow-rice-sunflower. Grain yield of rice and sunflower (4.47 and 0.78 tonnes/ ha) was significantly highest with S. rostrata green-manure, followed by sunnhemp, and the least with early rainy- season maize. Biomass yield also followed a similar trend.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-17
 
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/30088
 
Source The Indian Journal of Agricultural Sciences; Vol 67, No 12 (1997)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/30088/13583
 
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