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Evapo-transpiration of sesame (Sesamum indicum) in relation to pan evaporation

Indian Agricultural Research Journals

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Title Evapo-transpiration of sesame (Sesamum indicum) in relation to pan evaporation
 
Creator RAO, V PRAVEEN
RAIKHELKAR, S V
 
Subject —
 
Description A field experiment was conducted during summer season of 1988 and 1989 to measure the evapo-transpiration of sesame (Sesamum indicum L.) and relate it to pan evaporation. The treatments comprised 3 levels each of irrigation (0.6. 0.9 and 1.2 irrigation water depth: cumulative pan evaporationratio) and nitrogen (0. 40 and 80 kg N/ha) and phosphorus (0. 13 and 26 kg P/ha). Ratios of evapo-transpiration to pan evaporation were computed for specific crop-growth phases. viz establishment. vegetative. flowering and capsule initiation. and seed-filling and ripening stages. The average evapo transpiration : pan evaporation ratios were small (0.430) during the establishment phase. increased gradually with crop development (0.680) and attained peaks at flowering and capsule-initiation stages (0.841); thereafter they declined towards seed-filling and ripening stages (0.437). For different treatments each higher level of irrigation water depth: cumulative pan evaporation ratio. N and P increased the evapa-transpiration: pan evaporation ratio. But the magnitude of increase with each higher level was more with irrigation water depth: cumulative pan evaporation ratios. followed by and N and P. A curve fitted to the evapo-transpiration : pan evaporation ratios indicated that the water use by sesame depends on cropdevelopment. The relationship may be used to estimate evapo-transpiration of se$ame and actual irrigation requirement.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-02
 
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/29517
 
Source The Indian Journal of Agricultural Sciences; Vol 64, No 11 (1994)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29517/13322
 
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