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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Jan 2011, 32 (1)                                     Back


nstantaneous and historical temperature effects on a-pinene

Survey of nitrogen use pattern in rice in the irrigated rice-wheat

cropping system of Haryana, India

 

Author Details

 

Sher Singh

(Corresponding author)

PAU Regional Research Station for Kandi Area, Ballowal Saunkhri (SBS Nagar) - 114 521, India?

e-mail: shersingh76@gmail.com

R.K. Malik

Chaudhary Charan Singh Haryana Agricultural University, Hisar - 125 004, India

J.S. Dhankar

Chaudhary Charan Singh Haryana Agricultural University, Hisar - 125 004, India?

Rajbir Garg

Chaudhary Charan Singh Haryana Agricultural University, Hisar - 125 004, India

Parvender Sheoran

Punjab Agricultural University, Ludhiana - 141 004, India

Ashok Yadav

Chaudhary Charan Singh Haryana Agricultural University, Hisar - 125 004, India

B.R. Kamboj

Chaudhary Charan Singh Haryana Agricultural University, Hisar - 125 004, India

 

 

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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