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Effect of irrigation and nitrogen on growth and yield of sunflower (Helianthus annuus)

Indian Agricultural Research Journals

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Title Effect of irrigation and nitrogen on growth and yield of sunflower (Helianthus annuus)
 
Creator PRASAD, U K
PRASAD, T N
KUMAR, A
 
Subject cumulative pan evaporation soil moisture depletion, water-use efficiency, oil content
 
Description An experiment on summer sunflower (Helianthus annuus L.) was conducted during 1994-96 with 4 irrigation levels basedon the ratio of irrigation watcr depth: cumulative pan evaporation (IW : CPE) and 4 nitrogen levels in Bihar. Theresults showed that seed yield increased significantly at IW : CPE ratio of 0.8 (1.49 tonnes/ha) with 6 cm depthcomprising of 6 irrigation. But water-use efficiency was higher at 0.6 ratio with 4 irrigation. Response to nitrogen Wasrecorded only up to 40 kg N/ha. Plant height, dry-matter/plant and capitulum diameter were maximum at 0.8 IW : CPE ratio.But I 000-seed weight increased only at [W : CPE of 0.6 and 40 kg N/ha. Total nitrogen uptake and net return were alsohighest at 0.8 IW : CPE ratio and 40 kg N/ha. Soil-moisture depletion was higher from 0-60 m layer with 4-6irrigation, whereas relative depletion in lower soil profile'(60-90 cm) was more in rain fed control.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-02-01
 
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/26955
 
Source The Indian Journal of Agricultural Sciences; Vol 69, No 8 (1999)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/26955/12250
 
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