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Nitrogen response of sweet sorghum genotypes during rainy season

OAR@ICRISAT

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Relation http://oar.icrisat.org/9495/
http://dx.doi.org/10.18520/cs/v110/i9/1699-1703
 
Title Nitrogen response of sweet sorghum genotypes during rainy season
 
Creator Sawargaonkar, G L
Wani, S P
 
Subject Sorghum
Soil Science
 
Description Sweet sorghum (Sorghum bicolor (L.) Moench) is a
smart biofuel crop, which can be grown under tropical
rainfed conditions without sacrificing food and fodder
security. Three sweet sorghum cultivars (viz. ICSA
52  SPV 1411, CSH 22 SS and ICSV 93046) were
grown under six nitrogen levels (0, 30, 60, 90, 120,
150 kg ha–1) on Vertisols during two rainy (kharif)
seasons at ICRISAT, Patancheru, India. The results
from two-year trial indicated that out of three sweet
sorghum cultivars evaluated, sweet sorghum hybrid
CSH 22 SS produced highest green stalk (46.90 t ha–1)
and ethanol yield (1940 l ha–1) compared to other cultivars.
The three cultivars responded well to applied N
doses up to 150 kg ha–1, however, application of N beyond
90 kg ha–1 did not result in any significant increase
in grain yield and economic returns. Net
economic returns of Rs 32,898 ha–1 (US$ 601.21 ha–1)
were significantly higher with 90 kg N ha–1 application
as compared to other levels of fertilization. It is concluded
that for obtaining the highest green stalk yield,
ethanol yield and thereby maximum economic
returns, sweet sorghum cultivar, viz. CSH 22 SS
should be fertilized with 90 kg N ha–1.
 
Publisher Indian Academy of Sciences
 
Date 2016-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9495/1/1699.pdf
Sawargaonkar, G L and Wani, S P (2016) Nitrogen response of sweet sorghum genotypes during rainy season. Current Science, 110 (09). pp. 1699-1703. ISSN 0011-3891