Effect of time of Nitrogen Application on the Performance of Rice Varieties in Lowlying area.

Abstract

Field experiments were conducted at Bidhan Chandra Krishi Viswa Vidyalaya, Kalyani in the lowlying area where submergence was as high as 50 cm, by August, during Kharif seasons of 1973 and 1974 to compare the single basel application of nitrogen with its split applications to the rice varieties suitable for such areas. Results showed that application of nitrogen in two splits half at planting and the other half at titlering favourably influenced leaf area index, leaf area duration, number of panicles per unit area, number of grains per panicle and percentage of filled grains and so also the grain yield of rice, but it did not affect the plant height, tillering and test weight of grains. It also increased the protein content in grain. Inadequate fertiliser application at any of the above-mentioned stages gave reduced yield. Delayed application at booting stage uudor lewland situation, to avoid nitrogen application panicle initiation when water stagnation was maximum, did not show any advantage. Pankaj, a semidwart variety was found to be the best under such condition as compared to IR-442-2-58or other tall indica varieties Nc 1281 and Jalakamini.

DOI

https://doi.org/10.29321/MAJ.10.003199

Pages

162 - 168

Creative Commons

Copyright

© The Author(s), 2026. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

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