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Effect of micro-sprinkler system on input use efficiency, labour cost and economic viability in tobacco (Nicotiana tabacum) seedling production

Indian Agricultural Research Journals

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Title Effect of micro-sprinkler system on input use efficiency, labour cost and economic viability in tobacco (Nicotiana tabacum) seedling production
 
Creator RAO, B KRISHNA
CHANDRASEKARARAO, C
ANURADHA, M
PANDE, V C
 
Subject Economic viability, Labour, Micro-sprinklers, N, P, K uptake, Tobacco seedlings, Water saving
 
Description To improve the water and nutrient use efficiency and also to reduce the labour cost in tobacco (Nicotiana tabacum L.) nursery raising, experiment on micro sprinklers for tobacco nurseries was conducted at CTRI Nursery block, Rajahmundry, Andhra Pradesh during 2007 and 2008. From the results of the experiment, it is concluded that the optimum spacing between laterals is 2.5-3.0 m and the spacing between micro sprinklers is 2.5–3.0 m and for this spacing 4 sprinklers are required for irrigating two tobacco nursery beds. The micro sprinkler system saves 24% and 35% of irrigation water at nursery bed level and at total system level respectively in comparison to rose can watering system. Micro sprinklers increases the N, P, K concentrations of the total plant to an extent of 14%, 10%, 11% and uptake per unit area to an extent of 50%, 45%, 47% respectively over the rose can watering. Micro sprinklers increases the weight, height, root volume and number of transplantable seedlings by 19%, 16%, 31%, 18% respectively over the rose can watering. Installing micro sprinkler irrigation system saves an amount of Rupees 60 000/ha towards labour. Micro sprinkler system is an economically viable alternate to rose can watering and gives net present worth of Rupees 94 265/ha/year with a benefit cost ratio of 2.37 at 2011 prices.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-04-02
 
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/39451
 
Source The Indian Journal of Agricultural Sciences; Vol 84, No 4 (2014)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/39451/17747
 
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