1. Effect of different doses of nitrogen fertilizer on growth and yield of T. Aman rice variety (BRRI Hybrid Dhan4)
- Author
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Hossain, M.M., Das, S.K., Kabiraj, M.S.
- Subjects
Nitrogen application rate, soil properties, crop yield, hybrid rice, nitrogen, Oryza sativa - Abstract
Nitrogen is one of the most yield-limiting nutrients for rice production, and proper nitrogen fertilizer management is critical for high yield. In rice research, more time and energy are devoted to managing nitrogen fertilizer than any other nutrient because of the high potential for a return on the fertilizer investment.Considering this, an experiment was conducted at the Soil Science farm, Bangladesh Agricultural University, Mymensingh, Bangladesh during July 2017 to December 2017 in Aman season to examine the effect of different doses of nitrogen fertilizer on growth and yield of T. Aman rice variety (BRRI Hybrid Dhan4). The experiment consisted of four nitrogen levels (viz. 0,40, 80and 100 kg N ha-1) in a randomized complete block design with three replicates. The grain yield increased over control varied from 47% to 53%. The highest grain yield was observed 53% for treatment T3 (N80) and the lowest was recorded 47% in treatment T2 (N40). The highest N uptake was recorded 134.16 kg ha-1for treatment T3 when rice plants were fertilized with 80 kg N ha which was statistically similar to T4 and the lowest 62.45 kg ha-1 in treatment T1 (control). However the overall performance on yield contributing parameters was found on T3 treatment. We concluded that application of the intermediate levelof nitrogen (80 kg N ha-1) was economical and environment-friendly for the cultivation of BRRI Hybrid Dhan4.
- Published
- 2022
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