Survey of nitrogen use pattern in rice
in the irrigated rice-wheat
cropping system of Haryana, India
Author
Details
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Sher
Singh
(Corresponding author)
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PAU Regional Research
Station for Kandi Area, Ballowal Saunkhri (SBS Nagar) - 114 521, India?
e-mail: shersingh76@gmail.com
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R.K. Malik
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Chaudhary Charan Singh
Haryana Agricultural University, Hisar - 125 004, India
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J.S.
Dhankar
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Chaudhary
Charan Singh Haryana
Agricultural University, Hisar - 125 004, India?
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Rajbir
Garg
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Chaudhary
Charan Singh Haryana
Agricultural University, Hisar - 125 004, India
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Parvender
Sheoran
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Punjab Agricultural University, Ludhiana - 141 004, India
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Ashok
Yadav
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Chaudhary
Charan Singh Haryana
Agricultural University, Hisar - 125 004, India
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B.R.
Kamboj
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Chaudhary
Charan Singh Haryana
Agricultural University, Hisar - 125 004, India
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Publication Data
Paper received:
18 November 2009
Revised
received:
05 May 2010
Accepted:
18 May 2010
|
Abstract
Seeing the sustainability of rice-wheat cropping system
(RWCS) of the Indo-Gangetic Plain, adequate crop
nutrition in general and nitrogen (N) in particular holds the key to sound
crop management. The excessive application or insufficient management of N
means an economic loss to the farmer and may lead to yield penalties and
environmental problems. Improving N management in consonance with other
nutrients is much important to break yield plateaus as breeding for high
yielding is not happening in recent years. Findings from farm survey are used
to evaluate the on-farm N management practices in rice crop of the study
area. The crop management practices (especially time of sowing/transplanting
and irrigation requirement) and resource base of the farmers decided the N
use pattern of the farmers. The N Physical optimum and N economic optimum exceeding the recommended levels revealed the
apparent need for the revalidation of the existing recommendations. Paddy
yield increased significantly within different rice types. This study
generated comprehensive data on N use pattern in rice in the study area.
Key words
Rice-wheat
cropping system, Nitrogen, Splits, Paddy yield
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