Critical Grain Nitrogen Content for Optimizing Nitrogen and Water in Rice (Oryza sativa)


	Journal of Biological Sciences
	Year: 2002 \| Volume: 2 \| Issue: 11 \| Page No.: 746-747 DOI: 10.3923/jbs.2002.746.747

Critical Grain Nitrogen Content for Optimizing Nitrogen and Water in Rice (Oryza sativa)

L. Kota Prasad , Biplab Saha , Abdul Haris , K. Rajan and Sita Ram Singh

Abstract: The study was conducted to identify critical nitrogen percent in grain and optimum nitrogen and water level combination in low land rice in central Bihar where farmers apply meager amounts of fertilizer nitrogen. The critical limit technique and regression equation were used. There were significant relation ships between yield, grain nitrogen, fertilizer nitrogen and water levels (r= 0.942, 0.947). The critical level of grain nitrogen content found was 0.92% and was falling near to the optimum combination. The optimum combination found was 80 kg N ha^-1 and 8 cm water level in relation to a yield of 5500 kg ha^-1. This GN index is useful for optimizing the available water resources as well as external nitrogen requirement of the rice crop and the technique used for derivations were practically simple.

[Fulltext PDF] [References] [View Citation] [Report Citation]

How to cite this article:

L. Kota Prasad , Biplab Saha , Abdul Haris , K. Rajan and Sita Ram Singh , 2002. Critical Grain Nitrogen Content for Optimizing Nitrogen and Water in Rice (Oryza sativa) . Journal of Biological Sciences, 2: 746-747.

DOI: 10.3923/jbs.2002.746.747

URL: https://scialert.net/abstract/?doi=jbs.2002.746.747

COMMENT ON THIS PAPER

	Full Name:
	E-mail:
	Comments:

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		AGRICOLA
		AGRIS
		ASCI-Database
		Cambridge Scientific Abstract
		EMBASE
		Google Scholar
		SCIMAGO
		SCOPUS