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Standardization of nitrogen fertilizer rate for sugar yield optimization in sweet sorghum

OAR@ICRISAT

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Relation http://oar.icrisat.org/2719/
 
Title Standardization of nitrogen fertilizer rate for sugar yield optimization in sweet sorghum
 
Creator Reddy, P S
Reddy, B V S
Ashok Kumar, A
Rao, P S
 
Subject Sorghum
 
Description The recent skyrocketing of global fossil fuel prices
driven by shrinking supplies in the face of rising demand
and increased concerns over environmental pollution
associated with fossil fuel use triggered tremendous
efforts in exploring the use of alternative renewable fuel
sources particularly the transportation fuels worldwide.
Ethanol is the numero uno biofuels currently produced
mainly from maize (Zea mays) and sugarcane
(Saccharum officinarum). Sweet sorghum (Sorghum
bicolor) is similar to grain sorghum, having fast growth,
high biomass production and wider adaptability and is
known to have great potential in ethanol production
(Reddy et al. 2005). There is an increased interest in the
utilization of sweet sorghum for ethanol production in
India, the Philippines, China and USA, as its growing
period (about 4 months) and water requirement (8000 m3
over two crops) (Soltani and Almodares 1994) are 4
times lower than those of sugarcane (12–16 months and
36,000 m3 crop-1, respectively). To make sweet sorghum a
sustainable and profitable crop, there is a need for
standardization of agronomic practices, apart from
breeding high-yielding cultivars, which can contribute to
increased yields resulting in higher returns to farmers.
Application of fertilizers has a direct impact on crop
productivity. Nitrogen (N) is one of the major nutrients
that support crop growth and is the most responsive
nutrient required by sorghum (Singh et al. 1972). The
present study was conducted at International Crops
Research Institute for the Semi-Arid Tropics (ICRISAT),
Patancheru, India to standardize the optimum N dosage
for the optimization of sugar yields in sweet sorghum.
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2008
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/2719/1/standardizationofnitrogen6%281%29.pdf
Reddy, P S and Reddy, B V S and Ashok Kumar, A and Rao, P S (2008) Standardization of nitrogen fertilizer rate for sugar yield optimization in sweet sorghum. Journal of SAT Agricultural Research, 6. pp. 1-4.