RESPONSE OF RICE VARIETY YUSI RAY MAP-1 TO DIFFERENT RATES OF NITROGEN APPLICATION

Suraj Chhetri and Tashi Wangdi

International Journal of Agriculture and Environmental Research, 2023, vol. 9, issue 3

Abstract: This experiment was conducted to check the efficiency of different nitrogen rates on rice yield and yield components. Six nitrogen rates, 40 kg/ha, 80 kg/ha, 120 kg/ha, 160 kg/ha, 200 kg/ha, and 240 kg/ha were tested on rice variety Yusi Ray Map-1. Phosphorous and potassium rates were kept constant in all the treatments. Single fertilizers, urea, single super phosphate, and muriate of potash were used in the experiment. The study revealed that the different nitrogen levels had a significant difference (P<0.05) in the rice yield. Rice grain yield varied from 4.56 MT/ha to 7.65 MT/ha. The Nitrogen rate of 200 kg/ha showed the highest yield of 7.65 MT/ha, whereas the lowest yield was recorded with nitrogen rates of 40 kg/ha. The highest Plant height and the maximum number of tillers and fertile tillers were also observed in the treatment with a nitrogen level of 200 kg/ha. The plant height, number of tillers, and fertile tillers were highly significantly (P<0.01) different between the six treatments, while the flag leaf and panicle length were non-significant. The study confirms that the grain yield increased with the increase in nitrogen application rate of 200 kg/ha and detected yield decrease with further increase in nitrogen rate.

Keywords: Agribusiness; Crop Production/Industries (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:ags:ijaeri:338416

DOI: 10.22004/ag.econ.338416

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