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

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Title Effect of micro-sprinkler system on input use efficiency, labour cost and economic viability in tobacco (Nicotianatabacum) seedling production
 
Creator B KRISHNA RAO,
C CHANDRASEKARARAO,
M ANURADHA
V C PANDE
 
Subject : Economic viability, Labour, Micro-sprinklers, N, P, K uptake, Tobacco seedlings, Water saving
 
Description Not Available
To improve the water and nutrient use efficiency and also to reduce the labour cost in tobacco (Nicotianatabacum
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 ` 60 000/ha towards
labour. Micro sprinkler system is an economically viable alternate to rose can watering and gives net present worth of
` 94 265/ha/year with a benefit cost ratio of 2.37 at 2011 prices.
Not Available
 
Date 2020-03-17T08:55:51Z
2020-03-17T08:55:51Z
2014-04-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33885
 
Language English
 
Relation Not Available;
 
Publisher Not Available